Catalyst Preparation Procedure Probed by EXAFS Spectroscopy. 1. Nickel on Silica

Kazuyuki Tohji, Yasuo Udagawa, Shuji Tanabe, Akifumi Ueno

Research output: Contribution to journalArticlepeer-review

86 Citations (Scopus)

Abstract

Environments of Ni atoms were probed by extended X-ray absorption fine structure (EXAFS) at every elementary step of Ni/SiO2 catalyst preparation by two different methods. Combining the structural information obtained at the atomic level by EXAFS with the observation of the bulk by electron microscopy, detailed reaction procedures leading to different products have been revealed. The reason metal particle size distribution depends on the preparation procedure employed is ascribed to whether or not homogeneous dispersion of a small metal oxide cluster is realized before reduction.

Original languageEnglish
Pages (from-to)612-617
Number of pages6
JournalJournal of the American Chemical Society
Volume106
Issue number3
DOIs
Publication statusPublished - 1984 Feb 1
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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