Grain boundaries in nanocrystalline catalytic materials as a source of surface chemical functionality
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Miron V. Landau
Miron V. Landau is Professor of Chemical Engineering, at Ben-Gurion University of the Negev (Israel), and chief scientist of the Blechner Center for industrial catalysis and process development. He holds PhD and Dipl. Chemist degrees from the Moscow State University. He worked in the Catalysts Department of the All-Union (now All-Russian) Research Institute of Petroleum Refining (Moscow) and joined Ben-Gurion University in 1990. He has written publications and holds patents in development and industrial implementation of new catalytic materials for hydroprocessing of petroleum feedstocks, fine chemistry, production of recyclable fuels and environmental protection.
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Roxana Vidruk
Roxana Vidruk received her degrees in Chemical Engineering (BSc, MSc and PhD) from Ben-Gurion University of the Negev. In 2011 she joined the Blechner Center for industrial catalysis and process development as researcher and technical manager, where she is presently doing research in the field of advanced materials, heterogeneous catalysis and renewable fuels.
Dimitro Vingurt received his BSc in Physics from Ben-Gurion University and his MSc in Materials Engineering from Ben-Gurion University (supervisor: Prof. David Fuks). Currently, he is a PhD student at Ben-Gurion University at the Materials Engineering Department (supervisors: Prof. David Fuks and Prof. Miron Landau). Research interests concern
ab initio study of adsorption in catalysis.Professor David Fuks received his PhD degree in Solid State Physics from Tomsk State University, Russia, and his DSc degree (Dr. hab.) from Moscow State University, Russia, in 1975 and 1984, respectively. Since 1991 he has worked at the Materials Engineering Department, Ben Gurion University of the Negev, Israel. He was Invited Professor at the Institute of Physics, Federal University of Bahia, Brazil, the Department of Metallurgy and Materials Science, Catholic University of Leuven, Belgium, and the Physics Department, Osnabrück University, Germany. He is an author of a monograph and more than 250 papers in scientific journals. His research interests concern quantum-mechanical theory of solids, thermodynamics and kinetics of phase transitions, wetting, molecular dynamics simulations,
ab initio study of adsorption in catalysis.Moti Herskowitz is Professor of Chemical Engineering and researcher in the fields of advanced materials, heterogeneous catalysis and renewable fuels. He has published over 130 papers and 22 patents based on basic and applied research. Some patents deal with novel renewable and clean fuels as well as processes for their production. Prof. Herskowitz has been involved in a number of projects related to alternative and renewable fuels. Another patented technology is the production of advanced, green diesel fuel from vegetable and animal oils, ready for commercialization. Prof. Herskowitz is also engaged in the R&D of liquid fuels production from carbon dioxide and hydrogen.
Abstract
This review considers for the first time the effects in heterogeneous catalysis of grain boundaries (GB) created as a result of consolidation of catalytic materials nanoparticles without their sintering. Different methods proposed for quantitative characterization of nanoparticles consolidation extent were considered together with theoretical basis for increasing of catalytic activity at the GB surface areas between consolidated nanocrystals of metals and metal oxides. The review systemizes the GB effects observed in different areas of heterogeneous catalysis implementing metallic and oxide catalysts with acidic, basic, and redox surface functionality. The review analyzed experimental data that demonstrated the fine details of the structure of GB’s. Their contribution to improving the performance of catalytic materials should be accounted for in development of novel catalysts and deeper understanding of catalysts functioning.
About the authors
Miron V. Landau is Professor of Chemical Engineering, at Ben-Gurion University of the Negev (Israel), and chief scientist of the Blechner Center for industrial catalysis and process development. He holds PhD and Dipl. Chemist degrees from the Moscow State University. He worked in the Catalysts Department of the All-Union (now All-Russian) Research Institute of Petroleum Refining (Moscow) and joined Ben-Gurion University in 1990. He has written publications and holds patents in development and industrial implementation of new catalytic materials for hydroprocessing of petroleum feedstocks, fine chemistry, production of recyclable fuels and environmental protection.
Roxana Vidruk received her degrees in Chemical Engineering (BSc, MSc and PhD) from Ben-Gurion University of the Negev. In 2011 she joined the Blechner Center for industrial catalysis and process development as researcher and technical manager, where she is presently doing research in the field of advanced materials, heterogeneous catalysis and renewable fuels.
Dimitro Vingurt received his BSc in Physics from Ben-Gurion University and his MSc in Materials Engineering from Ben-Gurion University (supervisor: Prof. David Fuks). Currently, he is a PhD student at Ben-Gurion University at the Materials Engineering Department (supervisors: Prof. David Fuks and Prof. Miron Landau). Research interests concern abinitio study of adsorption in catalysis.
Professor David Fuks received his PhD degree in Solid State Physics from Tomsk State University, Russia, and his DSc degree (Dr. hab.) from Moscow State University, Russia, in 1975 and 1984, respectively. Since 1991 he has worked at the Materials Engineering Department, Ben Gurion University of the Negev, Israel. He was Invited Professor at the Institute of Physics, Federal University of Bahia, Brazil, the Department of Metallurgy and Materials Science, Catholic University of Leuven, Belgium, and the Physics Department, Osnabrück University, Germany. He is an author of a monograph and more than 250 papers in scientific journals. His research interests concern quantum-mechanical theory of solids, thermodynamics and kinetics of phase transitions, wetting, molecular dynamics simulations, ab initio study of adsorption in catalysis.
Moti Herskowitz is Professor of Chemical Engineering and researcher in the fields of advanced materials, heterogeneous catalysis and renewable fuels. He has published over 130 papers and 22 patents based on basic and applied research. Some patents deal with novel renewable and clean fuels as well as processes for their production. Prof. Herskowitz has been involved in a number of projects related to alternative and renewable fuels. Another patented technology is the production of advanced, green diesel fuel from vegetable and animal oils, ready for commercialization. Prof. Herskowitz is also engaged in the R&D of liquid fuels production from carbon dioxide and hydrogen.
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Articles in the same Issue
- Frontmatter
- In this issue
- Deep oxidative desulfurization of liquid fuels
- Grain boundaries in nanocrystalline catalytic materials as a source of surface chemical functionality
- Advances in preconcentration/removal of environmentally relevant heavy metal ions from water and wastewater by sorbents based on polyurethane foam
- An overview on the role of wheat gluten as a viable substitute for biodegradable plastics
Articles in the same Issue
- Frontmatter
- In this issue
- Deep oxidative desulfurization of liquid fuels
- Grain boundaries in nanocrystalline catalytic materials as a source of surface chemical functionality
- Advances in preconcentration/removal of environmentally relevant heavy metal ions from water and wastewater by sorbents based on polyurethane foam
- An overview on the role of wheat gluten as a viable substitute for biodegradable plastics
