Au/TiO2 nanotube catalysts prepared by combining sol-gel method with hydrothermal treatment and their catalytic properties for CO oxidation

作者：Zhao Hang; Zhang Ping; Wang Yudong; Huang Weiping; Zhang Shoumin^*

来源：Journal of Sol-Gel Science and Technology, 2014, 71(3): 406-412.

DOI：10.1007/s10971-014-3390-9

• Gold
• TiO2 nanotubes
• Sol-gel
• CO oxidation

A new preparation method for Au/TiO2 nanotubes (NTs) by combing sol-gel with hydrothermal treatment technique was developed. The TiO2 NTs calcined at 300 A degrees C were nearly uniform, and the gold particles were distributed homogeneously. The possible formation mechanism was suggested. The 5 % Au/TiO2 NTs calcined at 300 A degrees C had the best catalytic activity for CO oxidation, and their conversion of CO remained at 100 % during 60 h on stream. This preparation method could improve the thermal stability of Au/TiO2 nanotube catalysts.

• 出版日期2014-9
• 单位南开大学