Preparation of Nano-Structured Platinum Electrode Surfaces by Electrochemical Methods and Its Properties

Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (23): 2112-2116. Previous Articles Next Articles

具有纳米结构的铂电极表面的电化学制备及其性能

王小聪¹, 任斌², 曹婧¹, 颜佳伟², 钟起玲³, 田中群²

1. 天津科技大学理学院, 天津, 300222;
2. 厦门大学化学系, 固体表面物理化学国家重点实验室, 厦门, 361005;
3. 江西师范大学化学学院, 南昌, 330027

投稿日期:2005-01-14 修回日期:2005-07-21 发布日期:2014-02-14
通讯作者: 王小聪,E-mail:wangxiaobc@yeah.net E-mail:wangxiaobc@yeah.net
基金资助:
国家重点基础研究发展规划(973)(No.2001CB610506);厦门大学固体表面物理化学国家重点实验室基金(No.9906);天津科技大学自然科学基金(No.0218152)资助项目.

Preparation of Nano-Structured Platinum Electrode Surfaces by Electrochemical Methods and Its Properties

WANG Xiao-Cong¹, REN Bin², CAO Jing¹, YAN Jia-Wei², ZHONG Qi-Ling³, TIAN Zhong-Qun²

1. College of Science, Tianjin University of Science and Technology, Tianjin 300222;
2. State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005;
3. Department of Chemistry, Jiangxi Normal University, Nanchang 330027

Received:2005-01-14 Revised:2005-07-21 Published:2014-02-14

Abstract

The nano-sized constant potential roughened platinum (CPRPt) and constant current roughened platinum (CCRPt) electrode-surfaces have been prepared successfully by oxidation-reduction-cycle method. Many regularly shaped triangle-cones of the size of 10～30 nm were observed on the CPRPt electrode sur-face by the scan electron microscopy (SEM) technology. The electro-oxidation of methanol on the nano-CPRPt and the CCRPt electrode-surfaces was used to investigate the performances with the results of the peak current density 1.35 and 2.50 times greater than those of smooth Pt respectively. The in situ Raman spectra of these two kinds of electrode-surfaces indicated their high surface enhanced Raman spectrum (SERS) effects for pyridine adsorption. The CPRPt electrode surface has extraordinarily enhanced effect for adsorption-dissociation of small organic molecules. The mechanism of SERS on these platinum elec-trode-surfaces has been also discussed.

Key words: platinum, nano-particle, preparation, surface enhanced Raman spectrum, electro-oxidation

Cite this article

WANG Xiao-Cong, REN Bin, CAO Jing, YAN Jia-Wei, ZHONG Qi-Ling, TIAN Zhong-Qun. Preparation of Nano-Structured Platinum Electrode Surfaces by Electrochemical Methods and Its Properties[J]. Acta Chimica Sinica, 2005, 63(23): 2112-2116.

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具有纳米结构的铂电极表面的电化学制备及其性能

Preparation of Nano-Structured Platinum Electrode Surfaces by Electrochemical Methods and Its Properties

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