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Transient Infrared Studies Of Carbon Monoxide Oxidation On A Supported Platinum Catalyst
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Book Synopsis Transient Infrared Studies of Carbon Monoxide Oxidation on a Supported Platinum Catalyst by : Stephen Mark Dwyer
Download or read book Transient Infrared Studies of Carbon Monoxide Oxidation on a Supported Platinum Catalyst written by Stephen Mark Dwyer and published by . This book was released on 1980 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simultaneous Kinetic and Infrared Studies of Carbon Monoxide Oxidation on Supported Platinum Catalyst by : Kwang-Ho Park
Download or read book Simultaneous Kinetic and Infrared Studies of Carbon Monoxide Oxidation on Supported Platinum Catalyst written by Kwang-Ho Park and published by . This book was released on 1987 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reduction of Nitric Oxide by Carbon Monoxide Over a Silica Supported Platinum Catalyst by :
Download or read book Reduction of Nitric Oxide by Carbon Monoxide Over a Silica Supported Platinum Catalyst written by and published by . This book was released on 1978 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reduction of nitric oxide by carbon monoxide over a 4.5 weight precent platinum catalyst supported on silica was studied at 300 C. Reaction rate data was obtained together with in situ infrared spectra of species on the catalyst surface. The kinetics of the system were found to exhibit two distinct trends, depending on the molar ratio of CO/NO in the reactor. For net reducing conditions (CO/NO> 1) the catalyst underwent a transient deactivation, the extent of which was dependent on the specific CO/NO ratio during reaction. Reactivation of the catalyst was obtained with both oxidizing and reducing pretreatments. For molar feed ratios of CO/NO less than one, carbon monoxide conversion was typically 95 to 100%, resulting in strongly oxidizing conditions over the catalyst. Under these conditions no deactivation was apparent. Infrared spectra recorded under reaction conditions revealed intense bands at 2075 and 2300 cm−1, which were identified as carbon monoxide adsorbed on Pt and Si-NCO, respectively. Isocyanate bands formed under reducing conditions were more intense and exhibited greater stability than those formed under oxidizing conditions. A reaction mechanism based on the dissociation of nitric oxide as the rate-limiting step was used to correlate nitric oxide reaction rates and nitrous oxide selectivities observed under reducing conditions. As part of this mechanism it is assumed that nitrous bxide is formed via a Langmuir-Hinshelwood process in which an adsorbed nitrogen atom reacts with an adsorbed nitric oxide molecule. The nitric oxide reaction rate was found to be first order in nitric oxide partial pressure, and inverse second order in carbon monoxide partial pressure. A mechanism is proposed to qualitatively explain the deactivation process observed under reducing conditions. The essential part of this mechanism is the formation of an isocyanate species on the Pt crystallites of the catalyst and the subsequent transient diffusion of these species to the silica support. The deactivation is believed to result from the build-up of NCO on vacant sites necessary for the dissociation of nitric oxide.
Book Synopsis Elementary-step Modeling and Transient FTIR Studies of Carbon Monoxide and Ethylene Oxidation on Silicia-supported Platinum and Rhodium Catalysts by : Ravindra Sant
Download or read book Elementary-step Modeling and Transient FTIR Studies of Carbon Monoxide and Ethylene Oxidation on Silicia-supported Platinum and Rhodium Catalysts written by Ravindra Sant and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Transient Kinetic and Infrared Study of Carbon Monoxide Hydrogenation on Supported Platinum Catalysts by : Thomas K. Leong
Download or read book A Transient Kinetic and Infrared Study of Carbon Monoxide Hydrogenation on Supported Platinum Catalysts written by Thomas K. Leong and published by . This book was released on 1986 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Elementary-step Modeling and Transient FTIR Studies of Carbon Monoxide and Ethylene Oxidation on Silica-supported Platinum and Rhodium Catalysts by : Ravindra Sant
Download or read book Elementary-step Modeling and Transient FTIR Studies of Carbon Monoxide and Ethylene Oxidation on Silica-supported Platinum and Rhodium Catalysts written by Ravindra Sant and published by . This book was released on 1988 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An in Situ Infrared Study of Carbon Monoxide Oxidation on a Supported Platinum Catalyst by : Irene Beatrice Ang
Download or read book An in Situ Infrared Study of Carbon Monoxide Oxidation on a Supported Platinum Catalyst written by Irene Beatrice Ang and published by . This book was released on 1980 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reduction of Nitric Oxide by Carbon Monoxide Over a Silica Supported Platinum Catalyst by : D'Arcy Harold Lorimer
Download or read book Reduction of Nitric Oxide by Carbon Monoxide Over a Silica Supported Platinum Catalyst written by D'Arcy Harold Lorimer and published by . This book was released on 1978 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Infrared Study of the Oxidation of Carbon Monoxide on a Platinum Catalyst by : Henry Douglas Cochran
Download or read book An Infrared Study of the Oxidation of Carbon Monoxide on a Platinum Catalyst written by Henry Douglas Cochran and published by . This book was released on 1973 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalysis Under Transient Conditions by : Alexis T. Bell
Download or read book Catalysis Under Transient Conditions written by Alexis T. Bell and published by . This book was released on 1982 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Book Synopsis Simultaneous Infrared and Kinetic Studies of the Platinum Catalyzed Carbon Monoxide Oxidation by : Ronald Alan Sills
Download or read book Simultaneous Infrared and Kinetic Studies of the Platinum Catalyzed Carbon Monoxide Oxidation written by Ronald Alan Sills and published by . This book was released on 1970 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Infrared Study of the Oxidation of Carbon Monoxide Over Supported Rhodium Catalysts by : C. H. Dai
Download or read book An Infrared Study of the Oxidation of Carbon Monoxide Over Supported Rhodium Catalysts written by C. H. Dai and published by . This book was released on 1985 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reaction of carbon monoxide and oxygen over supported rhodium films has been studied using infrared spectroscopy. The focus of work was the reactivity of the various CO/Rh/X (X=Al2O3, SiO2, TiO2) surface states for supported catalysts having high and low Rh loading. Under the reaction conditions the 'linear CO' species was the most stable toward oxidation, but this could have been a result of an oxidized Rh surface. A new CO/Rh surface species has been proposed which exhibits an infrared band at 2000/cm for a 0.5% Rh/TiO2 film. This species is believed to be a bridged carbonyl between Rh+1 and the TiO2 support. Originator-supplied keywords include: Infrared spectroscopy, and Carbon dioxide.
Book Synopsis Catalyst Preparation by : John Regalbuto
Download or read book Catalyst Preparation written by John Regalbuto and published by CRC Press. This book was released on 2016-04-19 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text explores the optimization of catalytic materials through traditional and novel methods of catalyst preparation, characterization, and monitoring for oxides, supported metals, zeolites, and heteropolyacids. It focuses on the synthesis of bulk materials and of heterogeneous materials, particularly at the nanoscale. The final chapters examine pretreatment, drying, finishing effects, and future applications involving catalyst preparation and the technological advances necessary for continued progress. Topics also include heat and mass transfer limitations, computation methods for predicting properties, and catalyst monitoring on laboratory and industrial scales.
Book Synopsis Transient Studies of the Carbon Monoxide Oxidation Reaction on a Nickel Oxide Catalyst by : Alan James Hugo
Download or read book Transient Studies of the Carbon Monoxide Oxidation Reaction on a Nickel Oxide Catalyst written by Alan James Hugo and published by . This book was released on 1984 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Infrared Studies of the Adsorption of Carbon Monoxide and Nitric Oxide on Supported Ruthenium, Supported Platinum and Supported Bimetallic Ruthenium-platinum Samples by : Mary Frances Brown
Download or read book Infrared Studies of the Adsorption of Carbon Monoxide and Nitric Oxide on Supported Ruthenium, Supported Platinum and Supported Bimetallic Ruthenium-platinum Samples written by Mary Frances Brown and published by . This book was released on 1976 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Studies of Carbon Monoxide Oxidation on Supported Platinum by : Alfred J. Francis
Download or read book Dynamic Studies of Carbon Monoxide Oxidation on Supported Platinum written by Alfred J. Francis and published by . This book was released on 1982 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Organometallic Chemistry: Molecular Approaches to Surface Catalysis by : Jean-Marie Basset
Download or read book Surface Organometallic Chemistry: Molecular Approaches to Surface Catalysis written by Jean-Marie Basset and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface organometallic chemistry is a new field bringing together researchers from organometallic, inorganic, and surface chemistry and catalysis. Topics ranging from reaction mechanisms to catalyst preparation are considered from a molecular basis, according to which the "active site" on a catalyst surface has a supra-molecular character. This. the first book on the subject, is the outcome of a NATO Workshop held in Le Rouret. France, in May. 1986. It is our hope that the following chapters and the concluding summary of recommendations for research may help to provide a definition of surface organometallic chemistry. Besides catalysis. the central theme of the Workshop, four main topics are considered: 1) Reactions of organometallics with surfaces of metal oxides, metals. and zeolites; 2) Molecular models of surfaces, metal oxides, and metals; 3) Molecular approaches to the mechanisms of surface reactions; 4) Synthesis and modification of zeolites and related microporous solids. Most surface organometallic chemistry has been carried out on amorphous high-surf ace-area metal oxides such as silica. alumina. magnesia, and titania. The first chapter. contributed by KNOZINGER. gives a short summary of the structure and reactivity of metal oxide surfaces. Most of our understanding of these surfaces is based on acid base and redox chemistry; this chemistry has developed from X-ray and spectroscopic data, and much has been inferred from the structures and reactivities of adsorbed organic probe molecules. There are major opportunities for extending this understanding by use of well-defined (single crystal) oxide surfaces and organometallic probe molecules.
