Formation of two-dimensional ordered cavities of zinc oxide and their confinement effect on electrochemical reactions

被引：28

作者：

Zhou, Qun ^{[1
]}

Zhao, Jinjin ^{[1
]}

Xu, Weiwei ^{[1
]}

Zhao, Hong ^{[1
]}

Wu, Ying ^{[1
]}

Zheng, Junwei ^{[1
]}

机构：

[1] Suzhou Univ, Dept Chem, Suzhou 215123, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 07期

关键词：

D O I：

10.1021/jp077149i

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：

Micrometer polystyrene particles were uniformly assembled into a two-dimensional structure on an indium-doped tin oxide (ITO) electrode. An array of zinc oxide (ZnO) microcavities was fabricated with the template of the assembled polystyrene particles by electrodeposition. Due to the resistance gradient of the ZnO cavity structure, the ZnO cavity exhibits a confinement effect on the electrochemical reactions, making the electrode function as an array of "soft" microelectrodes. The electrochemical reduction of silver cations leads to the formation of the silver nanoparticles localized at the bottom of the ZnO cavities.

引用

页码：2378 / 2381

页数：4

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