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

B. W. Walker, Peter C Stair

Research output: Contribution to journalArticle

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 languageEnglish
JournalSurface Science
Volume91
Issue number2-3
DOIs
Publication statusPublished - Jan 2 1980

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Oxygen
oxygen
Lewis Bases
Adsorption
Lewis Acids
Lewis base
adsorption
Molybdenum
Auger electron spectroscopy
Carbon Dioxide
Auger spectroscopy
Electronic structure
molybdenum
electron spectroscopy
Charge transfer
carbon dioxide
Carbon dioxide
Metals
charge transfer
electronic structure

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Chemical evidence for the formation of an acidic Mo(100) surface by adsorbed oxygen. / Walker, B. W.; Stair, Peter C.

In: Surface Science, Vol. 91, No. 2-3, 02.01.1980.

Research output: Contribution to journalArticle

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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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