Characterization and catalytic performance of TiO2 nanotubes-supported gold and copper particles

被引：71

作者：

Zhu, BL ^{[1
]}

Guo, Q ^{[1
]}

Huang, XL ^{[1
]}

Wang, SR ^{[1
]}

Zhang, SM ^{[1
]}

Wu, SH ^{[1
]}

Huang, WP ^{[1
]}

机构：

[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2006年 / 249卷 / 1-2期

关键词：

gold; copper; modified TiO2 nanotubes; catalytic performance; CO oxidation;

D O I：

10.1016/j.molcata.2006.01.013

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：

TiO2 nanotubes are prepared via the reaction of anatase TiO, powder with NaOH solution. Gold and gold-copper supported on TiO, nanotubes (Au/TiO, NTs and Au-Cu/TiO2 NTs) are synthesized by deposition-precipitation method. The prepared materials are characterized with BET, powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). Their catalytic performance for low-temperature CO oxidation is studied by using a microreactor-GC system. The influence of support, pH of HAuCl4 solution, calcination temperature and atmosphere as well as gold content on the catalytic performance of Au/TiO2 NTs are investigated. Compared with AU/TiO2 NTs, the catalytic performance of Au-Cu/TiO2 NTs is better. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：211 / 217

页数：7

共 43 条

[1] Transmission electron microscopy observation of the structure of TiO2 nanotube and Au/TiO2 nanotube catalyst
Akita, T
Okumura, M
Tanaka, K
Ohkuma, K
Kohyama, M
Koyanagi, T
Date, M
Tsubota, S
Haruta, M
[J]. SURFACE AND INTERFACE ANALYSIS, 2005, 37 (02) : 265 - 269
[2] Oxidation of CO on gold supported catalysts prepared by laser vaporization: Direct evidence of support contribution
Arrii, S
Morfin, F
Renouprez, AJ
Rousset, JL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (04) : 1199 - 1205
[3] Au/TiO2 nanostructured catalyst:: effects of gold particle sizes on CO oxidation at 90 K
Boccuzzi, F
Chiorino, A
Manzoli, M
[J]. MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2001, 15 (1-2): : 215 - 217
[4] A kinetic and DRIFTS study of low-temperature carbon monoxide oxidation over Au-TiO2 catalysts
Bollinger, MA
Vannice, MA
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 1996, 8 (04) : 417 - 443
[5] Cobalt promotion of Au/TiO2 catalysts for the reaction of carbon monoxide with oxygen and nitrogen oxides
Cant, NW
Ossipoff, NJ
[J]. CATALYSIS TODAY, 1997, 36 (01) : 125 - 133
[6] Chen Q, 2002, ADV MATER, V14, P1208, DOI 10.1002/1521-4095(20020903)14:17<1208::AID-ADMA1208>3.0.CO
[7] 2-0
[8] Gold/titania interfaces and their role in carbon monoxide oxidation
Grunwaldt, JD
Baiker, A
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (06) : 1002 - 1012
[9] Surface chemistry of titania (anatase) and titania-supported catalysts
Hadjiivanov, KI
Klissurski, DG
[J]. CHEMICAL SOCIETY REVIEWS, 1996, 25 (01) : 61 - +
[10] 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

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