物理化学学报 >> 2003, Vol. 19 >> Issue (07): 647-650.doi: 10.3866/PKU.WHXB20030716

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纳米银-磷酸锆复合膜修饰电极的制备和电化学

王艳玲;张国荣   

  1. 山东师范大学化学系,济南　250014
  • 收稿日期:2002-11-18 修回日期:2003-03-18 发布日期:2003-07-15
  • 通讯作者: 张国荣 E-mail:shanshi5092002@yahoo.com.cn

The Preparation and Electrochemistry of the Modified Electrodes by the Nano Silver-Zirconium Phosphate Composite Film

Wang Yan-Ling;Zhang Guo-Rong   

  1. Department of Chemistry,Shandong Normal University,Jinan　250014
  • Received:2002-11-18 Revised:2003-03-18 Published:2003-07-15
  • Contact: Zhang Guo-Rong E-mail:shanshi5092002@yahoo.com.cn

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摘要： 合成了新型纳米银-磷酸锆复合材料并用其修饰玻碳电极,用循环伏安法对修饰电极进行电化学研究.结果表明,此复合膜保持了银的纳米尺寸的微粒性质和磷酸锆对碱性染料的电位调制能力.复合膜中的纳米银提高了磷酸锆对中性红的吸附能力,增强了中性红的氧化还原反应活性.复合膜修饰电极表现出更灵敏的电化学响应.复合膜比单纯的磷酸锆膜表现出更好的机械强度,用其制备的修饰电极表现出更好的稳定性.

关键词: 修饰电极, 纳米银胶粒, 磷酸锆, 复合膜, 中性红

Abstract: A novel composite material consisting of nano-colloidal silver and zirconium phosphate was synthesized and applied for the preparation of modified electrodes. The electrochemical property of the modified electrode was studied by the cyclic voltammetry. The nature of nano size particles of silver and the ability of zirconium phosphate to tune the potential were retained in this complex film. The ability of zirconium phosphate to adsorb neutral red and the redox reaction activity of neutral red were enhanced significantly in the composite film. The composite film modified electrode showed greater response. The composite film presents better mechanic strength and the modified electrode shows better stability.

Key words: Modified electrode, Nanosized silver colloid, Zirconium phosphate, 　Composite film, Neutral red