Model Systems In Catalysis
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Model Systems In Catalysis
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Author : Robert Rioux
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-11-11
Model Systems In Catalysis written by Robert Rioux and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-11 with Science categories.
This book is an excellent compilation of cutting-edge research in heterogeneous catalysis and related disciplines – surface science, organometallic catalysis, and enzymatic catalysis. In 23 chapters by noted experts, the volume demonstrates varied approaches using model systems and their successes in understanding aspects of heterogeneous catalysis, both metal- and metal oxide-based catalysis in extended single crystal and nanostructured catalytic materials. To truly appreciate the astounding advances of modern heterogeneous catalysis, let us first consider the subject from a historical perspective. Heterogeneous catalysis had its beginnings in England and France with the work of scientists such as Humphrey Davy (1778–1829), Michael Faraday (1791–1867), and Paul Sabatier (1854–1941). Sabatier postulated that surface compounds, si- lar to those familiar in bulk to chemists, were the intermediate species leading to catalytic products. Sabatier proposed, for example, that NiH moieties on a Ni sur- 2 face were able to hydrogenate ethylene, whereas NiH was not. In the USA, Irving Langmuir concluded just the opposite, namely, that chemisorbed surface species are chemically bound to surfaces and are unlike known molecules. These chemisorbed species were the active participants in catalysis. The equilibrium between gas-phase molecules and adsorbed chemisorbed species (yielding an adsorption isotherm) produced a monolayer by simple site-filling kinetics.
Model Systems In Catalysis
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Author :
language : en
Publisher: Springer
Release Date : 2010
Model Systems In Catalysis written by and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Model Systems In Catalysis
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Author : Robert Rioux
language : en
Publisher: Springer
Release Date : 2009-11-12
Model Systems In Catalysis written by Robert Rioux and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-12 with Science categories.
This book is an excellent compilation of cutting-edge research in heterogeneous catalysis and related disciplines – surface science, organometallic catalysis, and enzymatic catalysis. In 23 chapters by noted experts, the volume demonstrates varied approaches using model systems and their successes in understanding aspects of heterogeneous catalysis, both metal- and metal oxide-based catalysis in extended single crystal and nanostructured catalytic materials. To truly appreciate the astounding advances of modern heterogeneous catalysis, let us first consider the subject from a historical perspective. Heterogeneous catalysis had its beginnings in England and France with the work of scientists such as Humphrey Davy (1778–1829), Michael Faraday (1791–1867), and Paul Sabatier (1854–1941). Sabatier postulated that surface compounds, si- lar to those familiar in bulk to chemists, were the intermediate species leading to catalytic products. Sabatier proposed, for example, that NiH moieties on a Ni sur- 2 face were able to hydrogenate ethylene, whereas NiH was not. In the USA, Irving Langmuir concluded just the opposite, namely, that chemisorbed surface species are chemically bound to surfaces and are unlike known molecules. These chemisorbed species were the active participants in catalysis. The equilibrium between gas-phase molecules and adsorbed chemisorbed species (yielding an adsorption isotherm) produced a monolayer by simple site-filling kinetics.
Chemisorption And Reactivity On Supported Clusters And Thin Films
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Author : R.M. Lambert
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Chemisorption And Reactivity On Supported Clusters And Thin Films written by R.M. Lambert and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
Heterogeneous catalysis provides the backbone of the world's chemical and oil industries. The innate complexity of practical catalytic systems suggests that useful progress should be achievable by investigating key aspects of catalysis by experimental studies on idealised model systems. Thin films and supported clusters are two promising types of model system that can be used for this purpose, since they mimic important aspects of the properties of practical dispersed catalysts. Similarly, appropriate theoretical studies of chemisorption and surface reaction clusters or extended slab systems can provide valuable information on the factors that underlie bonding and catalytic activity. This volume describes such experimental and theoretical approaches to the surface chemistry and catalytic behaviour of metals, metal oxides and metal/metal oxide systems. An introduction to the principles and main themes of heterogeneous catalysis is followed by detailed accounts of the application of modern experimental and theoretical techniques to fundamental problems. The application of advanced experimental methods is complemented by a full description of theoretical procedures, including Hartree-Fock, density functional and similar techniques. The relative merits of the various approaches are considered and directions for future progress are indicated.
Oxygenases And Model Systems
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Author : T. Funabiki
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Oxygenases And Model Systems written by T. Funabiki and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Oxygenases have been the subject of much study and are of great interest and application. Biomimetic chemistry of oxygenases has yielded clarification of enzyme structures and reaction mechanisms and has also led to the development of synthetic oxygenation processes. This volume contains 8 chapters written by leading researchers which together present an overview of di- and mono-oxygenases and their model systems from the point of view of functions, structures and mechanisms. An up-to-date clarification of structures around active centres of heme- and nonheme-oxygenases is given with reference to the design of model complexes. Various contributions also discuss in detail the formation, structure and reactivity of metal-oxygen and metal-substrate species in both enzyme and model systems. The contents of the volume address the interface between bioinorganic chemistry and homogeneous catalysis and contains much to emphasize the importance of catalytic studies in bio- and biomimetic chemistry. Audience: Research chemists interested in the use of oxygenases in catalysis.
Catalysis By Materials With Well Defined Structures
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Author : Zili Wu
language : en
Publisher: Academic Press
Release Date : 2015-03-26
Catalysis By Materials With Well Defined Structures written by Zili Wu and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-26 with Technology & Engineering categories.
Catalysis by Materials with Well-Defined Structures examines the latest developments in the use of model systems in fundamental catalytic science. A team of prominent experts provides authoritative, first-hand information, helping readers better understand heterogeneous catalysis by utilizing model catalysts based on uniformly nanostructured materials. The text addresses topics and issues related to material synthesis, characterization, catalytic reactions, surface chemistry, mechanism, and theoretical modeling, and features a comprehensive review of recent advances in catalytic studies on nanomaterials with well-defined structures, including nanoshaped metals and metal oxides, nanoclusters, and single sites in the areas of heterogeneous thermal catalysis, photocatalysis, and electrocatalysis. Users will find this book to be an invaluable, authoritative source of information for both the surface scientist and the catalysis practitioner Outlines the importance of nanomaterials and their potential as catalysts Provides detailed information on synthesis and characterization of nanomaterials with well-defined structures, relating surface activity to catalytic activity Details how to establish the structure-catalysis relationship and how to reveal the surface chemistry and surface structure of catalysts Offers examples on various in situ characterization instrumental techniques Includes in-depth theoretical modeling utilizing advanced Density Functional Theory (DFT) methods
Construction And Reactivity Of Pt Based Bi Component Catalytic Systems
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Author : Rentao Mu
language : en
Publisher: Springer
Release Date : 2017-06-20
Construction And Reactivity Of Pt Based Bi Component Catalytic Systems written by Rentao Mu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-20 with Science categories.
In this thesis, the author outlines the construction of active structure and modulation of catalytic reactivity of Pt-based bi-component catalysts, from the model systems to real supported catalysts. The thesis investigates the promotion effect of the second components on catalytic performance of Pt catalysts, and presents the reversible generation of the “sandwich-like” structure of Pt-Ni catalysts, containing both surface NiO1-X and subsurface Ni by alternating redox treatments at medium temperature. With the aid of single layer graphene, the dynamic process of chemical reactions occurring on the Pt(111) surface can be visualized using in-situ LEEM and DUV-PEEM techniques, the results of which are included here. The author reveals that the graphene layer exhibits a strong confinement effect on the chemistry of molecules underneath and the intercalated CO can desorb from the Pt surface around room temperature and in UHV, which may promote the CO oxidation confined under graphene.
Computational Modeling Of Homogeneous Catalysis
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Author : Feliu Maseras
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-04-11
Computational Modeling Of Homogeneous Catalysis written by Feliu Maseras and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-11 with Science categories.
Recent results on a wide array of catalytic processes are collected in this volume. The book illustrates the importance of computational modelling in homogeneous catalysis by providing up-to-date reviews of its application to a variety of reactions of industrial interest.
Oxygen In Catalysis
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Author : Adam Bielanski
language : en
Publisher: CRC Press
Release Date : 1990-11-29
Oxygen In Catalysis written by Adam Bielanski and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-11-29 with Science categories.
A description of catalytic systems commonly used as model systems in the laboratory and as industrial catalysts in large-scale operations, and a discussion of the mechanisms operating in these reactions. Attempts to describe the elementary steps by quantum chemical methods are also shown, as are rec
From Enzyme Models To Model Enzymes
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Author : Anthony John Kirby
language : en
Publisher: Royal Society of Chemistry
Release Date : 2009
From Enzyme Models To Model Enzymes written by Anthony John Kirby and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Science categories.
Designing artificial systems with catalytic efficiencies to rival those of natural enzymes is one of the great challenges facing science today. This introduction to the exciting area of artificial enzymes is suitable for both students and more senior researchers.