Synthesis of One-Dimensional and Porous TiO2 Nanostructures by Controlled Hydrolysis of Titanium Alkoxide via Coupling with an Esterification Reaction
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- 作者：Ziyi Zhong ; Thiam-Peng Ang ; Jizhong Luo ; Hwee-Chin Gan ; and Aharon Gedanken
- 刊名：Chemistry of Materials
- 出版年：2005
- 出版时间：December 27, 2005
- 年：2005
- 卷：17
- 期：26
- 页码：6814 - 6818
- 全文大小：899K
- 年卷期：v.17,no.26(December 27, 2005)
- ISSN：1520-5002
文摘
1-Dimensional (1-D) TiO2 nanostructures were prepared by a novel one-pot method, in which thewater release was controlled by an esterification reaction between acetic acid and 2-propanol, and thealkoxide was partially coordinated with carboxylic acid, thus the hydrolysis step was significantly slowed.The successive unidirectional growth of TiO2 nanostructures was realized by using aniline, octylamine,and isobutylamine, respectively, as structure-directing agents. After calcination below 400 
C, 1-D andporous nanostructures of TiO2 anatase were obtained. Preliminary results showed that Au supported onthese TiO2 nanofibers, compared with catalyst using commercial TiO2 as support, has much higher catalyticactivity for CO oxidation at near ambient temperature.
C, 1-D andporous nanostructures of TiO2 anatase were obtained. Preliminary results showed that Au supported onthese TiO2 nanofibers, compared with catalyst using commercial TiO2 as support, has much higher catalyticactivity for CO oxidation at near ambient temperature.