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

Keiichi Tomishige; Kiyotaka Asakura; Yasuhiro Iwasawa

doi:10.1007/BF00772593

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 journal › Article › peer-review

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 language	English
Pages (from-to)	15-22
Number of pages	8
Journal	Catalysis Letters
Volume	20
Issue number	1-2
DOIs	https://doi.org/10.1007/BF00772593
Publication status	Published - 1993 Mar 1
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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

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.",

keywords = "EXAFS, NO dissociation, NO-H reaction, Rh-Sn/SiO, bimetallic ensemble structure",

author = "Keiichi Tomishige and Kiyotaka Asakura and Yasuhiro Iwasawa",

year = "1993",

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doi = "10.1007/BF00772593",

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volume = "20",

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T1 - Characterization of bimetallic surface structures of highly active Rh-Sn/SiO2 catalysts for NO-H2 reaction by EXAFS

AU - Tomishige, Keiichi

AU - Asakura, Kiyotaka

AU - Iwasawa, Yasuhiro

PY - 1993/3/1

Y1 - 1993/3/1

N2 - 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.

AB - 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.

KW - EXAFS

KW - NO dissociation

KW - NO-H reaction

KW - Rh-Sn/SiO

KW - bimetallic ensemble structure

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