Interaction of Diatomic Gas Molecules with Solid Surfaces PDF Download
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Author: Michael Ray Busby
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Michael Ray Busby
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Leon Trilling
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
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Book Description
A research program into phenomena related to gas-surface interaction was conducted over the last several years with the broad objective of answering the following general question: Given a stream of gas molecules of known properties approaching a specified surface, how does one predict the velocity and flux distributions of the streams which leave the surface. Beginning with very simple configurations, account has been taken of an increasingly detailed extended set of properties of the solid surface, of the gas stream and of the interaction process. The basic problem was formulated with a view to understanding molecular transport phenomena, first on inert metallic surfaces such as the skins of satellite vehicles in orbital flight, and later on ice crystals and nucleating centers in Brownian motion in the upper atmosphere. The experimental work during the present contract period included the development of a new scheme for measuring molecular velocity distribution using velocity spectrometry of electron beam excited metastable species. In the theoretical part of this research, a classical continuum model of the surface was constructed which successfully allows for a number of physical effects that are not predicted by lattice models.
Author: Howard Saltsburg
Publisher:
ISBN:
Category : Gases
Languages : en
Pages : 60
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Author: V. Bortolani
Publisher: Springer Science & Business Media
ISBN: 1468487779
Category : Science
Languages : en
Pages : 693
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Book Description
There is considerable interest, both fundamental and technological, in the way atoms and molecules interact with solid surfaces. Thus the description of heterogeneous catalysis and other surface reactions requires a detailed understand ing of molecule-surface interactions. The primary aim of this volume is to provide fairly broad coverage of atoms and molecules in interaction with a variety of solid surfaces at a level suitable for graduate students and research workers in condensed matter physics, chemical physics, and materials science. The book is intended for experimental workers with interests in basic theory and concepts and had its origins in a Spring College held at the International Centre for Theoretical Physics, Miramare, Trieste. Valuable background reading can be found in the graduate-Ievel introduction to the physics of solid surfaces by ZangwilI(1) and in the earlier works by Garcia Moliner and F1ores(2) and Somorjai.(3) For specifically molecule-surface interac tions, additional background can be found in Rhodin and Ertl(4) and March.(S) V. Bortolani N. H. March M. P. Tosi References 1. A. Zangwill, Physics at Surfaces, Cambridge University Press, Cambridge (1988). 2. F. Garcia-Moliner and F. Flores, Introduction to the Theory of Solid Surfaces, Cambridge University Press, Cambridge (1979). 3. G. A. Somorjai, Chemistry in Two Dimensions: Surfaces, Cornell University Press, Ithaca, New York (1981). 4. T. N. Rhodin and G. Erd, The Nature of the Surface Chemical Bond, North-Holland, Amsterdam (1979). 5. N. H. March, Chemical Bonds outside Metal Surfaces, Plenum Press, New York (1986).
Author: Leon Trilling
Publisher:
ISBN:
Category :
Languages : en
Pages : 33
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Book Description
The research conducted under contract F44620-76-C-0036 in the year 1978 is well described by the three papers presented at the XIth International Symposium on Rarefied Gas Dynamics. We submit them in lieu of an interim scientific report. (Author).
Author: Howard Saltsburg
Publisher: Elsevier
ISBN: 1483270637
Category : Science
Languages : en
Pages : 568
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Book Description
Fundamentals of Gas–Surface Interactions presents the study of the surface itself and the study of the gas phase partner of the interaction in which physical or chemical transformation of the gas resulted from that interaction. This book discusses the study of the energy and momentum exchanges resulting from the gas–solid physical interaction in which either gas or solid phase properties can be measured. Organized into three parts encompassing 33 chapters, this book begins with an overview of the different sensitive physical methods for the study of surface topography, surface defects, and surface irregularities to an accuracy of a few Angstroms. This text then reviews the adsorption at very low coverage that has yielded to equilibrium analysis. Other chapters consider the measurement of surface area by adsorption and optical techniques. The final chapter deals with scattering processes including momentum and energy transfer. This book is a valuable resource for engineers.
Author: Alexander V. Bogdanov
Publisher: Springer Science & Business Media
ISBN: 3540588027
Category : Science
Languages : en
Pages : 140
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Book Description
Interface phenomena are most fascinating because of the mixing of different scales and the interference of diverse physical processes. This makes it necessary to use different levels of description: microscopic, kinetic, and gas-dynamical. A unified quasiclassical approach is used to answer practical questions dealing with inelastic gas-surface scattering, the kinetics of adsorption layers, the evolution of inhomogeneities and defects at the surface, the Knudsen layer, the development of boundary conditions on the kinetic and gas-dynamical levels, the determination of exchange and slip coefficients, and so on.
Author:
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Category : Aeronautics
Languages : en
Pages : 892
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Author: Gert Due Billing
Publisher: John Wiley & Sons
ISBN: 9780471331087
Category : Science
Languages : en
Pages : 250
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Anliegen dieses Buches ist es, die Oberflächenchemie vom molekularen Standpunkt aus zu erklären. Hilfreich ist der interdisziplinäre Ansatz, der sowohl chemische als auch physikalische Aspekte einbezieht. Elektronische und Schwingungsfreiheitsgrade der Substratmoleküle werden exakt beschrieben; die Ausführungen zur Wechselwirkung in der Gasphase sind mit aktuellen theoretischen Methoden unterlegt. (04/00)
Author: Ricardo Diez Muino
Publisher: Springer Science & Business Media
ISBN: 3642329551
Category : Science
Languages : en
Pages : 439
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Book Description
This book gives a representative survey of the state of the art of research on gas-surface interactions. It provides an overview of the current understanding of gas surface dynamics and, in particular, of the reactive and non-reactive processes of atoms and small molecules at surfaces. Leading scientists in the field, both from the theoretical and the experimental sides, write in this book about their most recent advances. Surface science grew as an interdisciplinary research area over the last decades, mostly because of new experimental technologies (ultra-high vacuum, for instance), as well as because of a novel paradigm, the ‘surface science’ approach. The book describes the second transformation which is now taking place pushed by the availability of powerful quantum-mechanical theoretical methods implemented numerically. In the book, experiment and theory progress hand in hand with an unprecedented degree of accuracy and control. The book presents how modern surface science targets the atomic-level understanding of physical and chemical processes at surfaces, with particular emphasis on dynamical aspects. This book is a reference in the field.
