Adsorption of hydrogen on clean and oxidized beryllium studied by direct recoil spectrometry

S. Zalkind; M. Polak; N. Shamir

doi:10.1016/S0169-4332(96)01082-3

Adsorption of hydrogen on clean and oxidized beryllium studied by direct recoil spectrometry

S. Zalkind, M. Polak, N. Shamir

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Direct monitoring of hydrogen adsorption on clean and on pre-oxidized polycrystalline beryllium by means of direct recoil spectrometry (DRS) is reported. While no adsorption occurs for molecular hydrogen either on clean or on oxidized beryllium, atomic hydrogen adsorbs on the surface of clean Be, as well as at the sites available between oxygen clusters, formed by low oxygen pre-exposure. For higher oxygen pre-exposures, when oxide islands are formed, the apparent coverage of hydrogen is significantly lower than the amount needed for complementary full coverage on the Be surface. Possible origins for this observation are discussed.

Original language	English
Pages (from-to)	273-278
Number of pages	6
Journal	Applied Surface Science
Volume	115
Issue number	3
DOIs	https://doi.org/10.1016/S0169-4332(96)01082-3
State	Published - 1 Jan 1997

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/S0169-4332(96)01082-3

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title = "Adsorption of hydrogen on clean and oxidized beryllium studied by direct recoil spectrometry",

abstract = "Direct monitoring of hydrogen adsorption on clean and on pre-oxidized polycrystalline beryllium by means of direct recoil spectrometry (DRS) is reported. While no adsorption occurs for molecular hydrogen either on clean or on oxidized beryllium, atomic hydrogen adsorbs on the surface of clean Be, as well as at the sites available between oxygen clusters, formed by low oxygen pre-exposure. For higher oxygen pre-exposures, when oxide islands are formed, the apparent coverage of hydrogen is significantly lower than the amount needed for complementary full coverage on the Be surface. Possible origins for this observation are discussed.",

author = "S. Zalkind and M. Polak and N. Shamir",

year = "1997",

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doi = "10.1016/S0169-4332(96)01082-3",

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AU - Zalkind, S.

AU - Polak, M.

AU - Shamir, N.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Direct monitoring of hydrogen adsorption on clean and on pre-oxidized polycrystalline beryllium by means of direct recoil spectrometry (DRS) is reported. While no adsorption occurs for molecular hydrogen either on clean or on oxidized beryllium, atomic hydrogen adsorbs on the surface of clean Be, as well as at the sites available between oxygen clusters, formed by low oxygen pre-exposure. For higher oxygen pre-exposures, when oxide islands are formed, the apparent coverage of hydrogen is significantly lower than the amount needed for complementary full coverage on the Be surface. Possible origins for this observation are discussed.

AB - Direct monitoring of hydrogen adsorption on clean and on pre-oxidized polycrystalline beryllium by means of direct recoil spectrometry (DRS) is reported. While no adsorption occurs for molecular hydrogen either on clean or on oxidized beryllium, atomic hydrogen adsorbs on the surface of clean Be, as well as at the sites available between oxygen clusters, formed by low oxygen pre-exposure. For higher oxygen pre-exposures, when oxide islands are formed, the apparent coverage of hydrogen is significantly lower than the amount needed for complementary full coverage on the Be surface. Possible origins for this observation are discussed.

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U2 - 10.1016/S0169-4332(96)01082-3

DO - 10.1016/S0169-4332(96)01082-3

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JO - Applied Surface Science

JF - Applied Surface Science

IS - 3

ER -

Adsorption of hydrogen on clean and oxidized beryllium studied by direct recoil spectrometry

Abstract

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