Control of the rhodium particle size of the silica-supported catalysts by using microemulsion

Toshiaki Hanaoka, Takatoshi Hatsuta, Teruoki Tago, Masahiro Kishida, Katsuhiko Wakabayashi

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The control of the rhodium particle size of silica-supported catalysts by using microemulsion was investigated in terms of the structure of surfactants and organic solvents. The use of nonionic surfactants and anionic surfactants is effective for the preparation of catalysts having narrow size distribution. Especially, in nonionic surfactants, the rhodium particle size varied in the range of 3.0-8.2 nm according to the structure of surfactants and organic solvents regardless of rhodium content. The length of the hydrophilic group of surfactants and the carbon number of n-alcohol as an organic solvent were effective factors for the size control. The rhodium particle size increased with decreasing length of the hydrophilic groups of surfactants and with increasing carbon number of n-alcohol.

Original languageEnglish
Pages (from-to)291-296
Number of pages6
JournalApplied Catalysis A: General
Volume190
Issue number1-2
DOIs
Publication statusPublished - Jan 3 2000

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Process Chemistry and Technology

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