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Application of chemical trapping to the determination of surface species and to the study of their evolution under reaction conditions in heterogeneous catalysis

Authors
Journal
Journal of Molecular Catalysis
0304-5102
Publisher
Elsevier
Publication Date
Volume
31
Issue
2
Identifiers
DOI: 10.1016/0304-5102(85)85066-5
Keywords
  • Industrial Catalysis
Disciplines
  • Chemistry

Abstract

Abstract The detection of surface species by chemical trapping is described and discussed. The results obtained by scavenging intermediates in CO-H 2 and CO 2-H 2 reactions show the relevance of this method to the study of reaction mechanisms in heterogeneous catalysis. Quantitative detection of some species (carboxylate, formyi, methoxy) is achieved and a correlation has been found between activity and surface species on a Pd/MgO-SiO 2 catalyst. A reaction scheme is proposed for the CO-H 2 and CO 2-H 2 reactions.

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