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

Kazuyuki Tohji; Yasuo Udagawa; Shuji Tanabe; Akifumi Ueno

doi:10.1021/ja00315a026

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

Kazuyuki Tohji, Yasuo Udagawa, Shuji Tanabe, Akifumi Ueno

Research output: Contribution to journal › Article › peer-review

87 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 language	English
Pages (from-to)	612-617
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	106
Issue number	3
DOIs	https://doi.org/10.1021/ja00315a026
Publication status	Published - 1984 Feb 1
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja00315a026

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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.",

author = "Kazuyuki Tohji and Yasuo Udagawa and Shuji Tanabe and Akifumi Ueno",

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AU - Tohji, Kazuyuki

AU - Udagawa, Yasuo

AU - Tanabe, Shuji

AU - Ueno, Akifumi

PY - 1984/2/1

Y1 - 1984/2/1

N2 - 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.

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

Abstract

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