Preparation of supported gold catalysts from gold complexes and their catalytic activities for CO oxidation

被引：72

作者：

Yuan, YZ

Asakura, K

Wan, HL

Tsai, K

Iwasawa, Y

机构：

[1] XIAMEN UNIV, DEPT CHEM, XIAMEN 361005, PEOPLES R CHINA

[2] XIAMEN UNIV, STATE KEY LAB PHYS CHEM SOLID SURFACE, XIAMEN 361005, PEOPLES R CHINA

[3] UNIV TOKYO, FAC SCI, RES CTR SPECTROCHEM, BUNKYO KU, TOKYO 113, JAPAN

来源：

CATALYSIS LETTERS | 1996年 / 42卷 / 1-2期

关键词：

supported gold catalysts; CO oxidation; gold monomer and cluster; EXAFS;

D O I：

10.1007/BF00814461

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A phosphine-stabilized mononuclear gold complex Au(PPh(3))(NO3) (1) and a phosphine-stabilized gold cluster [An(9)(PPh(3))(8)](NO3)(3) (2) were used as precursors for preparation of supported gold catalysts. Both complexes 1 and 2 supported on inorganic oxides such as alpha-Fe2O3, TiO2, and SiO2 were inactive for CO oxidation, whereas the 1 or 2/oxides treated under air or CO or 5% H-2/Ar atmosphere were found to be active for CO oxidation. The catalytic activity depended on not only the treatment conditions but also the kinds of the precursor and the supports used. The catalysts derived from 1 showed higher activity than those derived from 2. alpha-Fe2O3 and TiO2 were much more efficient supports than SiO2 for the gold particles which were characterized by XRD and EXAFS.

引用

页码：15 / 20

页数：6

共 20 条

[11] HOMONUCLEAR AND HETERONUCLEAR CLUSTER COMPOUNDS OF GOLD
HALL, KP
MINGOS, DMP
[J]. PROGRESS IN INORGANIC CHEMISTRY, 1984, 32 : 237 - 325
[12] LOW-TEMPERATURE OXIDATION OF CO OVER GOLD SUPPORTED ON TIO2, ALPHA-FE2O3, AND CO3O4
HARUTA, M
TSUBOTA, S
KOBAYASHI, T
KAGEYAMA, H
GENET, MJ
DELMON, B
[J]. JOURNAL OF CATALYSIS, 1993, 144 (01) : 175 - 192
[13] NOVEL GOLD CATALYSTS FOR THE OXIDATION OF CARBON-MONOXIDE AT A TEMPERATURE FAR BELOW 0-DEGREES-C
HARUTA, M
KOBAYASHI, T
SANO, H
YAMADA, N
[J]. CHEMISTRY LETTERS, 1987, (02) : 405 - 408
[14] GOLD CATALYSTS PREPARED BY COPRECIPITATION FOR LOW-TEMPERATURE OXIDATION OF HYDROGEN AND OF CARBON-MONOXIDE
HARUTA, M
YAMADA, N
KOBAYASHI, T
IIJIMA, S
[J]. JOURNAL OF CATALYSIS, 1989, 115 (02) : 301 - 309
[15] LOW-TEMPERATURE CO OXIDATION OVER AU/TIO2 AND AU/SIO2 CATALYSTS
LIN, SD
BOLLINGER, M
VANNICE, MA
[J]. CATALYSIS LETTERS, 1993, 17 (3-4) : 245 - 262
[16] Schwank J., 1983, Gold Bull, V16, P103, DOI [10.1007/BF03214632, DOI 10.1007/BF03214632]
[17] STOICHIOMETRIC AND CATALYTIC REACTIVITY OF ORGANOMETALLIC FRAGMENTS SUPPORTED ON INORGANIC OXIDES
SCOTT, SL
BASSET, JM
[J]. JOURNAL OF MOLECULAR CATALYSIS, 1994, 86 (1-3): : 5 - 22
[18] TSUBOTA S, 1991, PREPARATION CATALYST, V5, P695
[19] YUAN Y, 1996, IN PRESS CHEM LETT
[20] STRUCTURE AND REACTIVITY OF SURFACE SPECIES OBTAINED BY INTERACTION OF ORGANOMETALLIC COMPOUNDS WITH OXIDIC SURFACES - IR STUDIES
ZECCHINA, A
AREAN, CO
[J]. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1993, 35 (02): : 261 - 317

← 1 2 →