Nano Archive

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

Zhou, Qun and Zhao, Jinjin and Xu, Weiwei and Zhao, Hong and Wu, Ying and Zheng, Junwei (2008) Formation of two-dimensional ordered cavities of zinc oxide and their confinement effect on electrochemical reactions. JOURNAL OF PHYSICAL CHEMISTRY C, 112 (7). pp. 2378-2381.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp077149i

Abstract

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.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanochemistry
ID Code:1499
Deposited By:Farnush Anwar
Deposited On:11 Dec 2008 19:34
Last Modified:15 Jan 2009 14:57

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