Chemical evidence for the formation of an acidic Mo(100) surface by adsorbed oxygen

B. W. Walker; P. C. Stair

doi:10.1016/0039-6028(80)90335-0

Chemical evidence for the formation of an acidic Mo(100) surface by adsorbed oxygen

B. W. Walker, P. C. Stair

Northwestern University

Research output: Contribution to journal › Article

22 Citations (Scopus)

Abstract

The adsorption of carbon dioxide, a Lewis acid, and trimethylamine, a Lewis base on the clean and partially oxidized molybdenum (100) crystal face was followed by LEED and Auger electron spectroscopy. CO₂ adsorbs dissociatively on clean Mo(100) but does not adsorb on the oxidized surface. N(CH₃)₃ adsorbs dissociatively on the clean Mo(100) surface but chemisorbs in molecular form on the oxidized surface. The difference in adsorption behavior is attributed to an alteration in the surface electronic structure caused by charge transfer from the metal atoms to the oxygen.

Original language	English
Pages (from-to)	L40-L44
Journal	Surface Science
Volume	91
Issue number	2-3
DOIs	https://doi.org/10.1016/0039-6028(80)90335-0
Publication status	Published - Jan 2 1980

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ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Cite this

Walker, B. W., & Stair, P. C. (1980). Chemical evidence for the formation of an acidic Mo(100) surface by adsorbed oxygen. Surface Science, 91(2-3), L40-L44. https://doi.org/10.1016/0039-6028(80)90335-0

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N2 - The adsorption of carbon dioxide, a Lewis acid, and trimethylamine, a Lewis base on the clean and partially oxidized molybdenum (100) crystal face was followed by LEED and Auger electron spectroscopy. CO2 adsorbs dissociatively on clean Mo(100) but does not adsorb on the oxidized surface. N(CH3)3 adsorbs dissociatively on the clean Mo(100) surface but chemisorbs in molecular form on the oxidized surface. The difference in adsorption behavior is attributed to an alteration in the surface electronic structure caused by charge transfer from the metal atoms to the oxygen.

AB - The adsorption of carbon dioxide, a Lewis acid, and trimethylamine, a Lewis base on the clean and partially oxidized molybdenum (100) crystal face was followed by LEED and Auger electron spectroscopy. CO2 adsorbs dissociatively on clean Mo(100) but does not adsorb on the oxidized surface. N(CH3)3 adsorbs dissociatively on the clean Mo(100) surface but chemisorbs in molecular form on the oxidized surface. The difference in adsorption behavior is attributed to an alteration in the surface electronic structure caused by charge transfer from the metal atoms to the oxygen.

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Access to Document

10.1016/0039-6028(80)90335-0