Vital role of moisture in the catalytic activity of supported gold nanoparticles

被引：594

作者：

Daté, M

Okumura, M

Tsubota, S

Haruta, M

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Green Technol, AIST, Tsukuba, Ibaraki 3058569, Japan

[2] Osaka Univ, Dept Chem, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 16期

关键词：

gold; heterogeneous catalysis; nanotechnology; oxidation;

D O I：

10.1002/anie.200453796

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Supported gold nanoparticles exhibit high catalytic activity not only at low temperatures, but also under the presence of moisture. The effect of moisture on CO oxidation over Au/TiO2, Au/Al2O 3, and Au/SiO2 was studied at 273 K. It was found that the catalytic activities are enhanced by moisture by up to two orders of magnitude, and that the moisture effect depends on the type of oxide support (see picture, TOF = turnover frequency).

引用

页码：2129 / 2132

页数：4

共 28 条

[1] Au/TiO2 nanosized samples:: A catalytic, TEM, and FTIR study of the effect of calcination temperature on the CO oxidation
Boccuzzi, F
Chiorino, A
Manzoli, M
Lu, P
Akita, T
Ichikawa, S
Haruta, M
[J]. JOURNAL OF CATALYSIS, 2001, 202 (02) : 256 - 267
[2] VIBRATIONAL INVESTIGATION OF CO ADSORBED ON GOLD DEPOSITED ON TIO2
BOCCUZZI, F
TSUBOTA, S
HARUTA, M
[J]. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1993, 64-5 : 241 - 250
[3] Gold-catalysed oxidation of carbon monoxide
Bond, GC
Thompson, DT
[J]. GOLD BULLETIN, 2000, 33 (02) : 41 - 51
[4] Catalysis by gold
Bond, GC
Thompson, DT
[J]. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1999, 41 (3-4): : 319 - 388
[5] Connecting the dots to custom catalysts
Cho, A
[J]. SCIENCE, 2003, 299 (5613) : 1684 - 1685
[6] Cosandey F, 2001, SURF REV LETT, V8, P73, DOI 10.1016/S0218-625X(01)00088-4
[7] On the potential role of hydroxyl groups in CO oxidation over Au/Al2O3
Costello, CK
Yang, JH
Law, HY
Wang, Y
Lin, JN
Marks, LD
Kung, MC
Kung, HH
[J]. APPLIED CATALYSIS A-GENERAL, 2003, 243 (01) : 15 - 24
[8] Moisture effect on CO oxidation over Au/TiO2 catalyst
Daté, M
Haruta, M
[J]. JOURNAL OF CATALYSIS, 2001, 201 (02) : 221 - 224
[9] FREUND HJ, 2001, ADV CATAL, V45, P333
[10] When gold is not noble: Catalysis by nanoparticles
Haruta, A
[J]. CHEMICAL RECORD, 2003, 3 (02) : 75 - 87

← 1 2 3 →