Chemisorption bond energies of Lewis acids and bases on oxygen modified Mo(100) surfaces

J. E. Deffeyes, A. Horlacher Smith, Peter C Stair

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The acid-base properties of three molybdenum (100) surfaces chemically modified by 1.5, 1.2, and 1.0 monolayers (ML) of atomic oxygen were investigated by thermal desorption spectroscopy using a series of molecular Lewis bases. The molecules used in this study were of three types, hard Lewis bases, ammonia and dimethylether, soft Lewis bases, phosphine, ethene and propene, and two π acids, carbon monoxide and 3,3,3-trifluoropropene. The trends in desorption energies are consistent with the expectation that the molecules would adsorb at localized, acidic surface sites. The desorption energies are correlated with proton affinities, and the 1.5 ML oxygen modified surface was found to most resemble a gas phase proton.

Original languageEnglish
Pages (from-to)79-98
Number of pages20
JournalSurface Science
Volume163
Issue number1
DOIs
Publication statusPublished - Nov 1 1985

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Lewis Bases
Lewis Acids
Lewis base
Chemisorption
chemisorption
phosphine
desorption
Oxygen
acids
Acids
Protons
Monolayers
Desorption
oxygen
Thermal desorption spectroscopy
Molecules
Molybdenum
protons
Carbon Monoxide
Ammonia

ASJC Scopus subject areas

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

Cite this

Chemisorption bond energies of Lewis acids and bases on oxygen modified Mo(100) surfaces. / Deffeyes, J. E.; Smith, A. Horlacher; Stair, Peter C.

In: Surface Science, Vol. 163, No. 1, 01.11.1985, p. 79-98.

Research output: Contribution to journalArticle

Deffeyes, J. E. ; Smith, A. Horlacher ; Stair, Peter C. / Chemisorption bond energies of Lewis acids and bases on oxygen modified Mo(100) surfaces. In: Surface Science. 1985 ; Vol. 163, No. 1. pp. 79-98.
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