Growth of Ce on Rh, surface alloy formation and the preparation and properties of Rh/ceria model planar catalysts

J. P. Warren, X. Zhang, J. E.T. Andersen, R. M. Lambert

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Ce deposition on Rh has been studied over a range of conditions: at sufficiently high temperatures a stable surface alloy (Ce3Rh2) is formed at all Ce coverages. Oxidation and thermal treatment of Ce overlayers leads to agglomeration and the formation of cerium oxide crystallites on an essentially bare Rh surface. The chemisorption and reactive behaviour of this latter system towards carbon monoxide very closely mimics that of practical CeO2 Rh catalysts: CO2 is efficiently produced by oxygen spillover from the rare-earth oxide phase.

Original languageEnglish
Pages (from-to)222-227
Number of pages6
JournalSurface Science
Volume287-288
Issue numberPART 1
DOIs
Publication statusPublished - May 10 1993

All Science Journal Classification (ASJC) codes

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

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