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

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