Characterization of bimetallic surface structures of highly active Rh-Sn/SiO2 catalysts for NO-H2 reaction by EXAFS

Keiichi Tomishige, Kiyotaka Asakura, Yasuhiro Iwasawa

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Rh-Sn/SiO2 catalysts prepared by the reaction of (CH3)4Sn with Rh metal particles supported on SiO2 have remarkably high activities for NO-H2 reaction and NO dissociation. The bimetallic surface structure of Rh-Sn/SiO2 composed of an isolated Rh atom surrounded by six Sn atoms, is presented by Rh K-edge and Sn K-edge EXAFS, FT-IR, TEM and CO adsorption.

Original languageEnglish
Pages (from-to)15-22
Number of pages8
JournalCatalysis Letters
Volume20
Issue number1-2
DOIs
Publication statusPublished - 1993 Mar 1
Externally publishedYes

Keywords

  • EXAFS
  • NO dissociation
  • NO-H reaction
  • Rh-Sn/SiO
  • bimetallic ensemble structure

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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