Chemical Reactions on Clean Surfaces, Using Modulated Atomic Beam Techniques PDF Download
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Author: R.L. Palmer
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 42
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Author: R.L. Palmer
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 42
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Author: Howard Saltsburg
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ISBN:
Category :
Languages : en
Pages : 21
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Progress is reported in a study of the H2-D2 exchange reaction which is catalyzed by a clean nickel surface. The preparation of both polycrystalline Ni target foils and vacuum deposited Ni target films is described. The main reaction parameters studied were the reactant beam flux, the beam temperature, and the surface temperature.
Author: J. N Smith (Jr)
Publisher:
ISBN:
Category :
Languages : en
Pages : 81
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The hydrogen-deuterium exchange reaction on nickel was studied using modulated molecular beam techniques. When coupled with a surface preparation technique that allows one to grow clean single crystals in situ during the experiment, it is shown that the scattering of H2, D2, and HD is specularly directed while the product of the H2/D2 exchange is scattered. The reaction probability implies the importance of the normal component of momentum in controlling the reaction rate. From these data and from earlier studies of the pressure dependence of the reaction the Langmuir type of mechanism is favored over a direct collisional (Rideal) type of mechanism in the exchange reaction H2 + D2 yielding 2HD. Further, it is apparent from the data that the role played by sorbed H2 is important in such reactions on Ni surfaces. (Author).
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 384
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
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Category : Government publications
Languages : en
Pages : 1352
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Author:
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ISBN:
Category : Science
Languages : en
Pages : 760
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Author:
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ISBN:
Category : Mass spectrometry
Languages : en
Pages : 900
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 204
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Author: United States. Air Force. Office of Aerospace Research
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ISBN:
Category : Aeronautics
Languages : en
Pages : 586
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Author:
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ISBN:
Category : Military research
Languages : en
Pages : 572
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