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Plenary Talks

Abstract

Carbon Capture and Utilization-CCU is gaining momentum worldwide as a perspective strategy for reducing the fossil-C extraction and release of CO2 into the atmosphere. Several options are in principle available for CO2 conversion into chemicals, materials, or fuels, targeting markets of different size (from kt/y to several Mt/y). Carbonation of sludge, chemical catalysis, enhanced CO2 fixation in aquatic biomass and integration of catalysis and biotechnology are interesting approaches. Whether an option is feasible (makes sense) or not, must be demonstrated by a detailed mass-cost-energy analysis in order to ascertain that the process is really a CO2-user/consumer and not a CO2 producer and is economically viable. In perspective, the thermal-driven processes, powered by fossil carbon, will be progressively substituted by perennial energy (solar-, wind-, geo-, hydro-power) fuelled processes, with substantial cut of fossil-C. The integration of CO2 conversion into Biomass utilization is a strategic goal for our future. This lecture will make an analysis of the transition, featuring scenarios in which carbon-recycling will play a key role in CO2-emission reduction.

Biography

Michele Aresta, former Professor of Chemistry at the University of Bari-Italy, is Doctor Industrial Chemistry, University of Milan; PhD Engineering HC, University of Bath, Bath, UK; Honorary Pofessor University of Tianjin, Tianjin, China. He acts as CEO of IC2R srl (Innovative Cataklysis for Carbon Recycling) and President of the Scientific Council of the Interuniversity Consortium on Chemical Reactivity and Catalysis, Italy.

Speaker
Michele Aresta / University of Bari, Italy

Abstract

Free-standing paper-like materials are essential part of our scientific and technological civilization. Their applications include electronic and optoelectronic devices, chemical filters, sensors, protective and adhesive layers and molecular storage. We report the preparation and characterization of graphene oxide (GO) papers, free-standing nanocarbon based material prepared by directional assembly of individual GO sheets using bar-coating of GO paste. Hummer�s method is one of the most popular ways for preparing GO. This method requires fewer hazardous materials and is carried out at relatively low temperature. The GO sheets prepared by Hummer�s method contains various functional groups such as carboxyl, quinone, phenolic and epoxy groups. In this study, washing of the GO sheets by distilled water in the filtration process was replaced by centrifugation process. The physical and microscopic characteristics of GO paper were investigated by THz time-domain spectroscopy, Raman spectroscopy, FTIR, XRD, EDS, SEM, TGA and ultimate tensile strength analysis.

Biography

Seung Beom Kang is a Principal Researcher at the Korea Institute of Carbon Convergence Technology since 2017. He had done research on THz time-domain spectroscopy, THz characterization of CNT nanocomposites, THz characterization of nano-carbon. Seung Beom Kang completed his Ph.D in Biomedical Engineering at Chungbuk National University (Korea) and M.S in Physics (Optics) in 1998 and B.S in Physics (1996) at Chungbuk National University (Korea), from 2006~2016 he worked as a Senior Researcher in Electronics and Telecommunications Research Institute, korea.

Speaker
Seung Beom Kang / Korea Institute of Carbon Convergence Technology, Korea

Abstract

The optimization of flow rate of carrier gas and injection rate of liquid feedstock catalyst mixture is essential for aerogel formation. A continuous CNT aerogel inside the hot furnace of CVD produce a sock of CNT at the outlet. Evaporation rate of liquid feedstock exponentially Increase with increase in pre heater temperature and disturb laminar flow. Therefore, carrier gas flow rate as well as contribution of feedstock vapors was included for the calculation of Reynolds number. A model was developed to predict the Reynolds number for given values of flow rates and feedstock injection rates. The optimized values of flow rates and injection rates were predicted from response surface of Reynolds number. The predicted optimized values 2L/min of flow rate, 2ml/min of injection rate at Re=39 were implemented to experimentally produce CNT. The diameter of CNT was 210-250 nm measured using FESEM and HRTEM.

Biography

Dr. Zia has over 10 years of teaching and research experience in national and international university fields of Pure and Applied Physics, Material Science. He published 6 SCI/ISI/scopus Q2 papers and 9 conferences. He has been an session cochair and invited speaker at Nanotech-2018 and Gavin conferences for oil and gas. Throughout his career he has been involved in research and academics for teaching, research coordinating, research supervision, counseling and managing the education of students. Specialties: Lecturing, Research, Experimentation, Analytical skills, communication skills, Industrial exposure, Problem designing/formulation, team management, research management, Material Studio, autoCAD, research/ academic writing, Nanomaterials synthesis and applications, spray pyrolysis CVD design and optimization based on Re( new) using RSM etc

Speaker
Zia ur Rehman / Department of Fundamental and Applied Sciences, Malaysia

Keynote Talks

Abstract

Graphene semiconductor or metal nanoparticle composites have the potential to function as efficient, multifunctional materials for Solar Energy Conversion, Gas and Bio Sensing, CO2 Reduction and Photo catalytic degradation. The fundamental principle of a graphene-based solar energy conversion is that graphene can change one absorbed photon of a few electrons, which increase in efficiency of solar panels. The adsorption energies and direction of charge transfer (from gas molecules to graphene or vice versa) are calculated based on the optimal adsorption configuration. The total density of states (DOS) of graphene-gas molecule adsorption system provides further insights into the effect of gas molecule adsorption on the electronic structure of graphene.During the bio recognition event, the electric charge produced changes in the conductivity of the channel between source and drain. Graphene allows for band gap tuning through surface modification and can detect gate voltage change formed from small amounts of single stranded DNA. It was found that graphene nanosheet can significantly enhance the electron–hole separation rate and specific surface area of the photocatalyst the photoinduced electrons on photocatalyst can be transferred to the graphene immediately for reduction process; thereby resulting in a high spatial separation of the photoinduced electron–hole pairs and graphene nanosheet can be also enhanced, which favors multi-electron reactions for photocatalytic CO2 reduction. The degradation of organic pollutants takes place mostly at the semiconductor surface. The nanostructured electrodes provide more adsorption sites for organic pollutants owing to their larger surface area. 2-D structured graphene oxide offer more effective channels for electron transport due to the reduced junctions and grain boundaries. Such fast electron transport decreases the rate of recombination and enhances PC degradation performance.

Biography

Won-Chun Oh is a Professor in the Department of Advanced materials and engineering at Hanseo University in Korea and School of Materials Science and Engineering at Anhui University of Science and Technology in China. He obtained a Ph.D. degree at Dankook University. And, he is guest professor in some of Universities in China, Thailand and Indonesia. He obtained the ‘Research Front’ award, the ‘Yangsong’ award, the “Excellent Paper Award”, the “Best Paper Award”, the “Award of appreciation”. He is an ICMMA committee board member and, is appointed as one of the “Conference Chairman and Local Chairman” from 2007 to present year. His current research fields are nanostructured materials such as metal/nanocomposite, graphene materials and metal nanoparticles, and their catalytic applications for future energy sources and green chemical technologies. He is the author or a coauthor of 690 papers published in domestic and international journals. He serves as the Editor Chief of the Journal of Multifunctional Materials and Photoscience, Asian Journal of Materials Chemistry and the Advisory Board Member of the Asian Journal of Chemistry.

Speaker
Won-Chun Oh / Hanseo University, Korea

Abstract

Activated carbon is among the best and most used materials for the adsorption and removal of pollutants. Petroleum coke may be activated by either a physical or chemical process, with a significant increase of its surface area. The activated coke may be effectively used as an adsorbing agent for the treatment of polluted water and natural gas.

Biography

Hassan Al-Haj Ibrahim has completed his PhD from the University of Leeds, UK. He is the Director of Quality Insurance and accreditation at the Arab University for Science and Technology in Syria and a professor at the department of Chemical engineering. He has published several books on different aspects of chemical engineering and quality assurance in education and more than 45 papers in reputed journals and has been serving as an editorial board member of some scientific journals

Speaker
Hassan Ibrahim / Director of Quality Assurance and Accreditation at the Arab University for Science and Technology, Syria

Abstract

Graphene semiconductor or metal nanoparticle composites have the potential to function as efficient, multifunctional materials for Solar Energy Conversion, Gas and Bio Sensing, CO2 Reduction and Photo catalytic degradation. The fundamental principle of a graphene-based solar energy conversion is that graphene can change one absorbed photon of a few electrons, which increase in efficiency of solar panels. The adsorption energies and direction of charge transfer (from gas molecules to graphene or vice versa) are calculated based on the optimal adsorption configuration. The total density of states (DOS) of graphene-gas molecule adsorption system provides further insights into the effect of gas molecule adsorption on the electronic structure of graphene.During the bio recognition event, the electric charge produced changes in the conductivity of the channel between source and drain. Graphene allows for band gap tuning through surface modification and can detect gate voltage change formed from small amounts of single stranded DNA. It was found that graphene nanosheet can significantly enhance the electron–hole separation rate and specific surface area of the photocatalyst the photoinduced electrons on photocatalyst can be transferred to the graphene immediately for reduction process; thereby resulting in a high spatial separation of the photoinduced electron–hole pairs and graphene nanosheet can be also enhanced, which favors multi-electron reactions for photocatalytic CO2 reduction. The degradation of organic pollutants takes place mostly at the semiconductor surface. The nanostructured electrodes provide more adsorption sites for organic pollutants owing to their larger surface area. 2-D structured graphene oxide offer more effective channels for electron transport due to the reduced junctions and grain boundaries. Such fast electron transport decreases the rate of recombination and enhances PC degradation performance.

Biography

Omid Akbarzadeh has completed his PhD at the age of 32 years from University Technology PETRONAS, Malaysia. He is the postdoctoral research fellow of Nanotechnology and Catalysis Research Centre (NANOCAT) of University Malaya, Malaysia. He has strong conceptual and analytical skills that were refined during his years in scientific research and Industry. He has the ability to approach problems from unusual perspectives, often proposing innovative solutions and fresh perspectives in well-established areas, as illustrated by his contributions to the field of GTL and catalysis. He has published several publications and invited for talk in many seminar and conferences.

Speaker
Omid Akbarzadeh / Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, Malaysia

Abstract

Carbon fiber reinforced polymer (CFRP) composites consist of two components:reinforcement materials(e.g. carbonfiber); and matrix (i.e. epoxy resin). Due to theirextraordinary mechanical strength along the fiber direction and good fatigue resistance characteristics, CFRP composites are widely used for civil engineering applications, mainly in strengthening and rehabilitation of reinforced concrete (RC) structures. RC members strengthened with CFRP composites provide a noticeable improvement to the load capacity of RC members. In spite the recent advancementsinusing CFRP composites for strengthening, mechanical properties of epoxy is considerably weaker than the fiber. Therefore,epoxy is considered as the controlling factor ofthe enhancement efficiency of RC structures’ mechanical properties. In this presentation, we will discuss the results of our study on new CFRP composites made using two commercially available epoxies (EPON 828 and EPON 862) and used to reinforce concrete prisms.A three-pointbending test was conducted to test the bond strength between carbon fiber reinforced polymer (CFRP) and concrete. In addition, scanningelectron microscopy (SEM), mechanical tensile and differential scanning calorimetry (DSC) tests were conducted to explore the internal structure of the CFRP laminates. The experimental results showed that optimum epoxy composition was a combination of EPON 828 (70%) and EPON 862 (30%), hence,achieving improvedbond strength and better adhesion between the carbon fiber and the concrete structure.In addition to its high glass transition which proves its effectiveness for better fire resistance.

Biography

Prof. Nasser A. ALNUAIMIis the Director of the Center for Advanced Materials at Qatar University. Main research field of Dr. Nasser is the concrete durability and rehabilitation of reinforced concrete infrastructure. He has vast experience in concrete manufacturing and structural degradation mechanism of reinforced concrete. His research is currently funded with $2.67 M from the Qatar National Research Fund. He studied the effect of carbon nanotubes on the performance of cementitious materials to enhance concrete strength and minimize cracking. He also has been studying the effect of harsh environments on strengthened RC beams using carbon fiber and steel mesh as external reinforcement. He has been providing consultancy services to multiple mega projects in Qatar such as Msheireb Properties and ATLAS Telecommunications.

Speaker
Nasser A. ALNUAIMI / Qatar University, Qatar

Sessions:

Abstract

Graphene-based materials such as carbon nanotube and graphene itself have attracted much attention due to their outstanding properties as well as emerging applications. Graphene-based materials can be synthesized by several plasma enhanced chemical vapor deposition (PECVD) techniques on heated substrates employing methane and hydrogen mixtures. For example, plane graphene formation can be realized by low-pressure PECVD on Cu and Ni substrate in the remote plasma configuration. In fact, excess flux of carbon precursors causes supersaturation and ion bombardment induces the defects, resulting in the decrease of graphene grain size and formation of vertical nanographene (carbon nanowall, CNW). CNWs are few-layer graphenes standing vertically on a substrate to form a self-supported network of wall structures. The maze-like architecture of CNWs with large-surface-area graphene planes would be useful as electrodes for energy devices, electrochemical and biosensors. On one hand, atmospheric pressure plasma is suitable for the synthesis of plane graphene, since we don’t have to consider the effect of ion bombardment on the growing surface due to the high-pressure operation. Synthesis of plane graphene was performed on Cu using microwave-excited atmospheric pressure plasma employing He/H2/CH4 mixture. The number of graphene layers did not increase even in the increase of formation period, indicating that the self-limiting growth of graphene could be attained on the Cu by supplying long-lived hydrocarbon radicals without ion bombardment. We report the current status of the synthesis of plane and vertical graphene using PECVD, together with the structure control for practical applications.

Biography

Prof. Mineo Hiramatsu received his M. Eng. and D. Eng. degrees from Nagoya University and is a Full Professor of Department of Electrical and Electronic Engineering, Meijo University, Japan. He also serves as the Director of Research Institute, Meijo University. His main fields of research are plasma diagnostics and plasma processing for the synthesis of thin films and nanostructured materials. Author of more than 150 scientific papers and patents on plasma processes for materials science. Author of 5 books. More than 30 invited speakers at international conferences on plasma science and nanomaterials. Japan Society of Applied Physics Fellow.

Speaker
Mineo Hiramatsu / Director of Research Institute, Meijo University, Japan

Abstract

Recently, various fuel cells, such as polymer electrolyte fuel cell (PEFC), are attracting a lot of attention owing to a small size and relatively low working temperature (below 80°C), which makes possible usage of PEFCs in automobile and household power generation. However, PEFC has a problem with decrease of output caused by corrosion of amorphous carbon used as a catalytic carrier, which could be solved by use carbon nanostructures with stronger crystal structure than amorphous carbon. In this work, we synthesized nanographene using various types of in-liquid plasma and analyzed applicability of produced material as highly-durable catalyst support material for PEFC. In-liquid plasma was generated in ethanol using custom high-voltage power supply. Amorphous component of synthesized nanographene was removed by hydrogen peroxide treatment and removal of amorphous carbon was confiremed by Raman spectroscopy. Platinum (Pt) nanoparticles were prepared on the surface of nanographene by the reduction of Pt salt precursors (H2Cl6Pt) in solution. Membrane electrode assembly (MEA) was constructed, where Pt-supported nanographene was used as the catalytic layer. Power generation characteristic of MEA were evaluated and durability of the Pt-supported nanographene was investigated. From the electrochemical evaluation of Pt-supported nanographene, it was found that durability of Ptsupported nanographene was higher than that of carbon black, which looks promising for improvement of durability of PEFC. Effect of the sysnthesis conditions on parameters of produced nanographene and applicability of nanographene to development of highly-durable PEFCs will be demonstrated.

Biography

Vladislav Gamaleev has completed his PhD at the age of 28 years from Kochi University of Technology, Japan. He is postdoctoral researcher of Meijo University. His research interests include generation of plasma at atmospheric and high pressure in gas and liquid phase, and plasma diagnostics by optical emission spectroscopy. Currently, he is focusing on the generation of oxygen and nytrogen radicals by atmospheric pressure plasma for bio-medical and agriculture applications. Vladislav Gamaleev is a member of Japan Society of Applied Physics (JSAP)

Speaker
Vladislav Gamaleev / Researcher at Meijo University,japan

Abstract

Straws are agricultural by-products available in large quantities, and if utilized efficiently, can provide appropriate feedstocks for competitive energy production with consequent reduction of dependence on fossil fuels. Straws can be used either as a solid fuel of high calorific value and reduced pollutants emission or they may be converted into coke-like biomass or charcoal fuel. They may be used either separately or mixed with other biomass or waste products.

Biography

Hassan Al-Haj Ibrahim has completed his PhD from the University of Leeds, UK. He is the Director of Quality Assurance and Accreditation at the Arab University for Science and Technology in Syria and a professor at the department of Chemical engineering. He has published several books on different aspects of chemical engineering and quality assurance in education and more than 45 papers in reputed journals and has been serving as an editorial board member of some scientific journals.

Speaker
Hassan Al-Haj Ibrahim / Director of Quality Assurance and Accreditation at the Arab University for Science and Technology, Syria

Abstract

A systematic characterization of electron transfer reaction involving copper amino acid complexes is an interesting task in connection with a biological activity of copper. We immobilized copper on a self-assembled monolayer (SAM) of different types of cysteines grown on graphene electrode. Copper- amino acid complexes were characterized by electrochemical methods such as cyclic voltammetry (CV). Influence of pH of electrolyte, hydrocarbon chain length of cysteine and concentration of copper chloride solution used for immobilization of copper on amino acid self-assembled monolayer/graphene composite, on electron transfer process were tested. Strong signal of copper (II) reduction was obtained in the phosphate buffer solution at pH 6.2 and no significant change was observed after change the hydrocarbon chain length on electrochemistry of graphene/cysteine/copper composite. Apart from fundamental interest, Cu2+ containing device could be interesting to study as effective copper ion sensors/catalysts on their own. One more aspect of this work is exploitation of graphene as a supporting substrate for self-assembled monolayers.

Biography

Nikoloz Nioradzehas completed his PhD from The University of Pittsburgh, USA and postdoctoral studies from The University of Texas at Austin,USA. He is the senior researcher at the IvaneJavakhishvili Tbilisi State University, R. Agladze Institute of Inorganic Chemistry and Electrochemistry, Georgia. He has published more than 13 papers in reputed journals.

Speaker
Nikoloz Nioradze / Senior researcher at IvaneJavakhishvili Tbilisi State University, Georgia

Abstract

Ultralong carbon nanotubes (CNTs) usually refer to the horizontally aligned CNT arrays with lengths up to centimeters or even decimeters grown on flat substrates by chemical vapor deposition. With the optimized growing conditions, we successfully synthesized half-meter long CNTs. They have perfect structures and extraordinary electrical and mechanical properties. In addition, Optical visualization of individual ultralong CNTs by chemical vapour deposition of titanium dioxide nanoparticles was realized. Moreover, we found the macroscale superlubricity in centimeters long perfect double-walled CNTs under ambient conditions. Recently, CNT bundles with defect-free, neat, unifom oriented, continuous, and stress free structure were successfully prepared, which showed a tensile strength over 80 GPa.

Biography

Prof. Rufan Zhang is an assistant professor in the Department of Chemical Engineering, Tsinghua University. His research interests focus on the controlled synthesis and property study of carbon materials, energy storage, environmental protection, catalysis, etc. Prof. Zhang has published more than 44 peer-reviewed papers on prestigious journals such as Nature Nanotechnology, Nature Communications, Chemical Society Reviews, Accounts of Chemical Research, Advanced Materials, Nano Letters, ACS Nano, etc. Prof. Zhang received many prestigious honors and awards such as MIT Technology Review “35 Innovators Under 35”-China, Young Chemistry Awards by Chinese Chemical Society, the First Prize of the Natural Science Award for Outstanding Achievements of Scientific Research, Ministry of Education of China, Dimitris N Chorafas Foundation Award, Chorafas Foundation, Switzerland, Top 10 Academic Stars of Tsinghua University, Excellent Doctoral Dissertation of Tsinghua University, etc.

Speaker
Rufan Zhang / professor in the Department of Chemical Engineering, Tsinghua University

Abstract

Bioenergy is energy from the sun stored in materials of biological origin. This includes plant matter and animal waste, known as biomass. Plants store solar energy through photosynthesis in cellulose and lignin, whereas animals store energy as fats. When burned, these sugars break down and release energy exothermically, releasing carbon dioxide (CO2), heat and steam. The by-products of this reaction can be captured and manipulated to create power, commonly called bioenergy. Biomass is considered renewable because the carbon (C) is taken out of the atmosphere and replenished more quickly than the millions of years required for fossil fuels to form. The use of biofuels to replace fossil fuels contributes to a reduction in the overall release of carbon dioxide into the atmosphere and hence helps to tackle global warming (Abdeen, 2008d).

Biography

Abdeen Mustafa Omer (BSc, MSc, PhD) is an associate researcher at Energy Research Institute (ERI). He obtained both his PhD degree in the built environment and master of philosophy degree in renewable energy technologies from the university of nottingham. He is qualified mechanical engineer with a proven track record within the water industry and renewable energy technologies. He has been graduated from university of El menoufia, Egypt, BSc in mechanical engineering. His previous experience involved being a member of the research team at the national council for research/energy research institute in Sudan and working director of research and development for national water equipment manufacturing Co. Ltd., Sudan. He has been listed in the book “who’s who” in the World 2005, 2006, 2007 and 2010. He has published over 300 papers in peer-reviewed journals, 200 review articles, 7 books and 150 chapters in books.

Speaker
Abdeen Mustafa Omer / Professor at Energy Research Institute, UK

Abstract

The work presents results of the analysis of the microporous structure of activated carbons obtained from biomass waste materials by carbonisation and chemical activation with potassium hydroxide. The aim of the research was to evaluate the impact of the hydroxide to biomass mass ratio on the porous structure of the obtained activated carbons. The calculations were carried out using the BET and DR methods, as well as the new LBET method with the unique fast multivariant identification procedure. In this study, besides determined was the elemental composition of precursors, using energy-dispersive X-ray spectroscopy, as well as active carbons obtained from them. Also, for each sample of activated carbon pictures were taken at different magnifications, using a scanning electron microscopy. The obtained results of the research highlighted the significant potential of the production of activated carbons with very high adsorption capacity and large specific surface area from biomass waste materials, by chemical activation with potassium hydroxide. Moreover the presented research yielded a broad spectrum of information and shed a new light on the issues pertaining to the assessment of the effect of carbonaceous adsorbent production technology on the obtained parameters of the porous structure.

Biography

Dr. hab. eng. Mirosław Kwiatkowski in 2004 obtained Ph.D. degree at the AGH University of Science and Technology in Kraków (Poland), and in 2018 D.Sc. degree at the Wrocław University of Technology (Poland). In addition, he obtained a certificate of completion of postgraduate studies: Professional Research and Development Project Manager at the Krakow University of Agriculture (Poland), Research and Development Project Manager at the University of Economics and Innovation in Lublin (Poland), and Electrical Energy Markets at the AGH University of Science and Technology in Krakow (Poland). His published work includes more than 45 papers in reputable international journals and 90 conference proceedings. He is the editor in chief of The International Journal of System Modeling and Simulation (United Arab Emirates), an associate editor of Micro & Nano Letters Journal (United Kingdom) and a member of the editorial board of internationals journals as well as a member of the organizing committees many international conferences in Europe, Asia and USA. Dr. hab. eng. Mirosław Kwiatkowski is also a regular reviewer in a most reputable scientific journals. His research interest include: chemical technology, chemistry and physical chemistry, nanotechnology, material science and engineering, mathematical modelling of the adsorption process, computer science, electrical energy markets and problems connected with economics and management. His research interest include: chemical technology, chemistry and physical chemistry, nanotechnology, material science and engineering, mathematical modelling of the adsorption process, computer science, electrical energy markets and problems connected with economics and management.

Speaker
Mirosław Kwiatkowski / AGH University of Science and Technology, Poland

Abstract

Secondary forest ecosystem contributes to global climate change mitigation through carbon sequestration. Above-Ground Bole Biomass (AGBB) is the major component for monitoring and estimating Carbon Stocks (CS) and fluxes in tropical forests. However, information on Above-Ground Bole Carbon Stock (AGBCS) for the International Institute of Tropical Agriculture (IITA), which hosts relics of the undisturbed secondary forest ecosystem in south-western Nigeria, has not been documented. Therefore, AGBCS of the secondary forest ecosystem was estimated using forest inventory technique.

Biography

Aghimien Ehimwenma Victor is a Lecturer of Forest Biometrics and Remote Sensing at the Federal College of Forestry, Ibadan, Nigeria. He obtained his Bachelor Degree in Forestry and Wildlife at the University of Benin, Benin City, Nigeria. He also holds an M.Sc. and Ph.D. in Forest Biometrics and Remote Sensing at the University of Ibadan, Ibadan, Nigeria. His core research interests include; Forest Carbon Inventory, Forest Biometrics, Forest Mensuration, Forest Inventory, Growth and Yield Modelling and Forest Management. His research work involves the application of inventory data to prescribe solutions to forest resources management problems. He is a member of Regional-based Forest Carbon Assessment for Climate Change Mitigation (REDD+) in West Africa. He participated in the National Forest (Carbon) Inventory Exercise organized by Food and Agriculture Organization of the United Nations (FAO). He was a participant at the Forest Reference Emission Level (FREL) validation workshop in Nigeria. He belongs to numerous learned professional bodies.

Speaker
Aghimien Ehimwenma Victor / Federal College of Forestry,Nigeria

Abstract

During this presentation electrochemical [1], chemical [2] and biochemical [3-6] synthesis of conducting polymers (CPs). CPs-based structures in the design of various types of electrochemical biosensors will be outlined [6]. Applicability of CPs development of glucose biosensors based on glucose oxidase (GOx) will be discussed. Enzymatic reaction catalysed by GOx can be applied for the initiation of polymerization of some conducting polymers. We have shown that this method is suitable for the synthesis of polypyrrole [3], polyaniline [4], polytiophene [5] and some other conducting polymer based layers and nanoparticles. We also have demonstrated that formed nanostructures and nanoparticles shows good biocompatibility with living cells and when they were injected in mice. We have demonstrated that during such kind of synthesis of nanoparticles and/or nanostructured layers the enzymes becomes entrapped within CP-layer. We have shown that redox processes that are part of metabolism of living cells can be applied for the synthesis of conducting polymer – polypyrrole (Ppy), and formed Ppy nanoparticles could be entrapped within cell wall of yeast cells [6]. CPs-based nanoparticles and nanostructured layers are suitable for the design of bioelectrochemical devices. Applicability of CPs in the design of molecularly imprinted polymer based electrochemical sensors will be discussed.

Biography

Prof. Habil. Dr. Arūnas Ramanavičius is a professor at Vilnius University, Vilnius, Lithuania. He is head of Department of Physical Chemistry at Vilnius University and NanoTechnas- Centre of Nanotechnology and Materials Science. He is also heading department of NanoBioTechnology at State Research Institute Centre for Physical Sciences and Technology. In 1998 he received PhD degree and in 2002 doctor habilitus degree from Vilnius University. He is a member of Lithuanian Academy of Sciences. Prof. A. Ramanavicius is serving as expert-evaluator in EU-FP7 program coordinated by European Commission and he is technical advisor of many foundations located in European and non-European countries. He has been a national coordinator of several nanotechnology related COST actions.

Speaker
Arunas Ramanavicius / Head of Department of Physical Chemistry, Faculty of Chemistry Vilnius University, Lithuania

Abstract

In this research, reduced-graphene-oxide (rGO) microheater in parallel is proposed and produced from graphene oxide (GO) using femtosecond laser direct writing (FsLDW). The electro-thermal performance of the photoreduced microheater is characterzied based on Joule heating. The experimental results reveal that the microheater with higher areal density has lower resistance, which indicates better electro-thermal performance as well. As a consequence, the performance of the microheater is physically valid.

Biography

Liangxing Hu obtained his Bachelor Degree from Harbin Institute of Technology (China) in 2012. He has completed his Ph.D. from Nanyang Technological University (Singapore). Currently, he is a Research Fellow in School of Mechanical and Aerospace Engineering, Nanyang Technological University. His research interests are MEMS, catalytic micro/nanomotors, bubble oscillation, carbon nanotubes, femtosecond laser direct writing, microheater, waveguide, etc.

Speaker
Liangxing Hu / Nanyang Technological University, Singapore

Abstract

Commercial Al-air and Zn-air batteries normally use a NaOH electrolyte and a Mn3O4 catalyst. In this work, a polystyrene sulfonate/graphene based NaOH electrolyte and a Mn3O4/graphene catalyst were prepared for Al-air and Zn-air batteries. Electrochemical impedance spectroscopy (EIS) and surface analysis were conducted to investigate discharge mechanisms. Results obtained show that both assembled Al-air and Zn-air batteries perform much better than commercial ones. The operating voltage, the anodic utilization rate and the energy density of the assembled Al-air battery are 1.167 V, 88 % and 2546 Wh•Kg-1, respectively, whereas 1.132 V, 70% and 2348 Wh•Kg-1 were measured for the commercial Al-air battery. Similarly, a performance improvement has been achieved with Zn-air battery. These results were discussed together with results of anode surface analysis to understand the effects of graphene on the performance of Al-air and Zn-air batteries.

Biography

Guangxin Wang received his PhD from University of Bremen, Germany in 1990. Since then, he has been working as a materials scientist in Germany, USA and China. Right now, he is a professor of Henan University of Science and Technology, China. He has published a book and over 90 technical papers.

Speaker
Guangxin Wang / Professor of Henan University of Science and Technology, China

Abstract

Now days, carbon based materials are extensive explored to reduce friction, which consumes most one third of energy that human used every day. Some of carbon things are more attractive because of their superlubriciy properties. Since 1991, M. Hirano and K. Shinjo (Physical Review B, 41 (1990) 11837) proposed the concept of superlubricity (the friction coefficient in the order of 0.001), the contribution to superlubricity has made great progress. In present work, hydrogen amorphous carbon film with about 25% hydrogen content were grown using PECVD method. We chose Au and MoS2 coated GCr15 balls as couple pairs. The tribology test results show superlubricity behabiors that coefficient below 0.01, even low to 0.002. TEM results shown that flat or curvel graphene were formation in contact interface which might afford for superlubricity.

Biography

Bin Zhang has completed his PhD from Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences. He is the director assitant of R&D Center of Lubricating and Protecting Materials,. He has published more than 50 papers in reputed journals and has been won National Prize of China 2 time..

Speaker
Bin Zhang / Chinese Academy of Sciences, China

Abstract

The exponential growth of Municipal Solid Waste (MSW) along with its environmental impact is one of the most critical problems that large cities in developing countries face now-a-days. Solid Waste management in developing countries is characterized by highly inefficient waste collection practices, variable and inadequate levels of service due to limited resources, lack of environmental control systems, indiscriminate dumping, littering and scavenging and, most of all, poor environmental and waste awareness of the general public. In most urban areas in emerging/developing countries, solid waste management costs consume between 20% and 50% of municipal revenues. Every Municipalities, Puorashava and City Corporation has to run by Government subsidy and it forces them to increase the Property Tax in the concern City. Turning Municipal Solid Waste to Green Fuel is the best solution for waste management and waste can be turned into a valuable resource in this way and make sustainable project as well as create jobs for the Cities. Waste Technologies LLC (WTL) has patented and award winning technologies to eliminate the huge environmental and global problem in sea and land. WTL has it its solution. Waste Technologies LLC is producing Low Sulfur, Jet Fuel, Gas (C1-C4), Biogas and Compost Fertilizers from municipal solid waste. The conversion rate of WTL is almost 98% with no residue, no odor and no emission. It is completely green technology. MSW can be turned in to Gold Mind and it no longer would be headache for the socities.

Biography

Dr. Sarker is the CEO and CTO of Waste Technologies, LLC (WTL) since 2013 and he is the sole owner of the company. WTL has been working on any waste turning into green fuel especially building 1st commercialization facility in Bridgeport, CT on Waste Plastic to Low Sulfur Diesel (Patent # US 8,927,797 B2) and he has 5 more patent is pending stage since 2011.

Speaker
Moinuddin Sarker / CEO and CTO Waste Technologies LLC, USA.

Plenary Talks

Abstract

Biography

Professor Liew is the Head of Department of Architecture and Civil Engineering and Chair Professor of Civil Engineering, City University of Hong Kong. Prior to this, Professor Liew was appointed Chair Professor of Building and Construction, City University of Hong Kong, a tenured Professor at Nanyang Technological University (Singapore) and the Founding Director of Nanyang Center for Supercomputing and Visualization. Over his academic career, he has published over 700 SCI journal articles. Professor Liew is listed by the Institute for Scientific Information (ISI) as a Highly Cited Researcher in engineering. His publications have been cited over twenty-five thousand times and his current h-index is 66 (ISI) or 82 (Google Scholar). To date, Professor Liew has attracted over US$40 million research and development funds from government funding agencies, industries and higher institutions. He has graduated over 50 PhD students and supervised over 60 Post-doc fellows. His students are well received by industries and many of them have become faculty members of universities worldwide.

Speaker
Kim Meow LIEW / City University of Hong Kong, Hong Kong

Keynote Talks

Abstract

With the gradual improvement of people’s living standards, the energy shortage and serious environmental pollution have become major problems that human beings have to face in the 21st century. The utilization of solar energy from the sunlight is one of the appealing approaches to overcome the climate change and address the resources of fossil fuels.[1]Recently, two-dimensional (2D) graphitic carbon nitride (g-C3N4) structure has become a pacey field of photocatalysis research owing to its atomically thin sheet-like nanomaterials.[2] Noble metals have been widely used as the co-catalysts for solar energy conversion. Due to the high cost and scarcity of noble metals, the development of noble-metal-free catalysts has raised the wave of interests among the scientific community at present.[3]In this talk, the state-of-the-art research advancement in our laboratory toward effective photocatalytic reactions using noble-metal-free 2D nanocomposites will be presented.[4]To further enhance the photocatalytic efficiency, constructing heterojunction nanocomposites with dimensionality-dependent metal phosphide and metal dichalcogenide can act as a pivotal role to hinder the charge recombination.[5] This includes MoSe2, Ni2P, Ni12P5, Co2P and FeP.[6] The charge carrier mechanisms are systematically elucidated by the photoelectrochemistry and the first-principles density functional theory (DFT) calculations. Apart from that, single atom catalysis (SAC) has been employed to tune the reactivity of g-C3N4 toward robust N2 fixation.[7]As a whole, the research paves a new prospect toward smart engineering of 2D-based nanoarchitectures with ameliorated charge transfer and separation in energy conversion. As such, this can certainly be extended to other energy-related applications (e.g. solar cells and photovoltaics).

Biography

Wee-Jun Ongreceived his BEng and Ph.D. degrees in Chemical Engineering from Monash University. In 2015, he was a Visiting Research Fellow at the University of New South Wales. In 2016, he joined Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR) in Singapore as a Staff Scientist.He was an Assistant Professor in the School of Energy and Chemical Engineering at Xiamen University Malaysia in 2018 and he was promoted to Associate Professor in 2019. In 2019, he is a Visiting Professor in the Center for Advancing Electronics Dresden (cfaed) in Prof.Xinliang Feng’s group at TechnischeUniversität Dresden, Germany. He is the VisitingProfessor at the Lawrence Berkeley National Laboratory and the University of California, Berkeley in August 2019. His research interests focus on photocatalytic, photoelectrocatalytic and electrochemical H2O splitting, CO2 reduction and N2fixation using nanomaterials. In 2018, he has been named the Emerging Investigator in the Journal of Materials Chemistry A. He has authored, corresponding-authored and co-authored >55 papers published in Chemical Reviews, Chem, Materials Horizons, Nano Energy, ACS Nano, Journal of Materials Chemistry A, Nano Research, etc. His citations are more than 5500 with an H-index of 32. He has been the Lead Guest Editor of several Special Issues in Nanoscale, Solar RRL, ACS Applied Materials & Interfaces, Chemistry – A European Journal, Particle & Particle Systems Characterization,etc. Currently, he serves as the Associate Editor of Frontiers in Chemistry and Frontiers in Materials, Board Member of Materials Horizons, Langmuir, Scientific Reports, Nanotechnology and Nano Futures. For more details, see: https://sites.google.com/site/wjongresearch/.

Speaker
Wee-Jun Ong / Xiamen University Malaysia, Malaysia

Sessions:

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