Recent Studies of Chemical Interactions on Surfaces Using Molecular Beams PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 36
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Book Description
Molecular beams are being used to study chemical interactions on surfaces with increasing frequency and effectiveness. During the period beginning in 1970 through the spring of 1975, the number of published papers in this field approximately doubled. It is the purpose of this article to comprehensively review the field of molecular beam studies of chemical interactions on surfaces during this period and provide a helpful perspective for the use of other workers in this field. Within the scope of this article will be included molecular beam studies of (1) chemisorption with special emphasis on 'activated chemisorption, ' (2) studies of heterogeneous chemical reactions including simple unimolecular decomposition, (3) reactions with the surface of corrosion, and (4) catalytic bimolecular reactions between distinct chemical species on the surface. A discussion of the experimental details of molecular beam techniques and their application to studies of chemical interactions on surfaces has been largely avoided since this topic has been thoroughly discussed in other recent articles.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 36
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Book Description
Molecular beams are being used to study chemical interactions on surfaces with increasing frequency and effectiveness. During the period beginning in 1970 through the spring of 1975, the number of published papers in this field approximately doubled. It is the purpose of this article to comprehensively review the field of molecular beam studies of chemical interactions on surfaces during this period and provide a helpful perspective for the use of other workers in this field. Within the scope of this article will be included molecular beam studies of (1) chemisorption with special emphasis on 'activated chemisorption, ' (2) studies of heterogeneous chemical reactions including simple unimolecular decomposition, (3) reactions with the surface of corrosion, and (4) catalytic bimolecular reactions between distinct chemical species on the surface. A discussion of the experimental details of molecular beam techniques and their application to studies of chemical interactions on surfaces has been largely avoided since this topic has been thoroughly discussed in other recent articles.
Author: Roger Campargue
Publisher: Springer Science & Business Media
ISBN: 3642568009
Category : Science
Languages : en
Pages : 1013
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Book Description
This title covers the state of the art in this field both theoretically and experimentally. With contributions from leading researchers including several Nobel laureates, it represents a long-lasting source of reference on all aspects of fundamental research into or using atomic and molecular beams.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 836
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Book Description
Author: Robert L. Palmer
Publisher:
ISBN:
Category :
Languages : en
Pages : 23
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Book Description
THERMAL ENERGY MOLECULAR BEAMS HAVE BEEN USED TO STUDY CHEMICAL INTERACTIONS WITH METAL SURFACES. Chemisorption of simple molecules such as H2, O2, CH4, C2Hx and CO was investigated on single and polycrystalline surfaces of Pt, Ni, Co, and Ag. Kinetic parameters and reaction mechanisms were determined for model catalytic reactions including CO and C2Hx oxidation and methanation from H2/CO mixtures. Chemical reactions of NOx with CO and D2 on Pt(111) and other surfaces have been surveyed and the kinetics of NO and O2 chemisorption have been measured. The theory of adsorption/desorption kinetics is reviewed and certain deficiencies identified. (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 724
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Book Description
Author: Immanual Estermann
Publisher: Elsevier
ISBN: 0323160344
Category : Technology & Engineering
Languages : en
Pages : 199
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Book Description
Recent Research in Molecular Beam is a collection of scientific papers that have been inspired by Otto Stern, the founder of Molecular Beam Research. This book is composed of 10 chapters and begins with discussions on the early history of molecular beam research. The next chapters describe the velocity distribution measurements made on potassium molecular beams with a fixed-frequency, variable phase velocity selector, along with a brief consideration of the principles and concepts of electron magnetic moment and atomic magnetism. A chapter presents the atomic beam spectroscopic experiments on the metastable state of the hydrogen-like atoms that depend on a wholly different principle for the detection of transitions. This text further explores the effects of variations in the oscillatory field amplitudes, perturbations by neighboring resonances, perturbations by oscillatory fields, variations in the fixed field amplitudes, and phase shifts of the oscillatory fields. These topics are followed by a comparison of advantages and limitations of various techniques for spin property measurement as they apply in particular to radioactive nuclei, such as optical and molecular gas microwave spectroscopy, nuclear and paramagnetic resonance, and atomic beams. The remaining chapters examine fluid friction in a rarefied gas flow; some applications of molecular beam techniques to chemistry; and the polarized neutrons based on a Stern-Gerlach experiment. This work will be of great value to workers and researchers in molecular beam field.
Author: United States. Energy Research and Development Administration. Technical Information Center
Publisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 1682
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Book Description
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.
Author: Steven Lynn Bernasek
Publisher:
ISBN:
Category :
Languages : en
Pages : 410
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Book Description
Author: Bretislav Friedrich
Publisher: Springer Nature
ISBN: 3030639630
Category : Science
Languages : en
Pages : 639
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Book Description
This Open Access book gives a comprehensive account of both the history and current achievements of molecular beam research. In 1919, Otto Stern launched the revolutionary molecular beam technique. This technique made it possible to send atoms and molecules with well-defined momentum through vacuum and to measure with high accuracy the deflections they underwent when acted upon by transversal forces. These measurements revealed unforeseen quantum properties of nuclei, atoms, and molecules that became the basis for our current understanding of quantum matter. This volume shows that many key areas of modern physics and chemistry owe their beginnings to the seminal molecular beam work of Otto Stern and his school. Written by internationally recognized experts, the contributions in this volume will help experienced researchers and incoming graduate students alike to keep abreast of current developments in molecular beam research as well as to appreciate the history and evolution of this powerful method and the knowledge it reveals.
