高等学校化学学报

高等学校化学学报

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一种新型的钛基纳米多孔网状铂电极对甲醇氧化反应的电催化活性

易清风1 , CHEN Ai-Cheng2 , 章晶晶1, 黄武1   

    1. 湖南科技大学化学化工学院, 湘潭 411201;
    2. Department of Chemistry, Lakehead University, Thunder Bay, Ontario, P7B 5E1, Canada
  • 收稿日期:2006-11-21 修回日期:1900-01-01 出版日期:2007-09-10 发布日期:2007-09-10
  • 通讯作者: 易清风

Electrocatalytic Activity of a Novel Nanoporous Platinum Electrode Towards Methanol Oxidation

YI Qing-Feng1*, CHEN Ai-Cheng2, ZHANG Jing-Jing1, HUANG Wu1   

    1. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
    2. Department of Chemistry, Lakehead University, Thunder Bay, Ontario, P7B 5E1, Canada
  • Received:2006-11-21 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
  • Contact: YI Qing-Feng

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被引次数

16

摘要： 利用水热法一步制备出钛基纳米多孔网状铂催化剂(nanoPt/Ti), 并研究了它对甲醇氧化反应的电催化活性.

关键词: 纳米多孔铂电极, 甲醇氧化, 电催化, 水热法

Abstract: A novel titanium-supported nanoporous platinum (nanoPt/Ti) with a network structure was fabricated by using the hydrothermal process. Electrochemical oxidation of methanol on nanoPt/Ti was investigated in alkaline solutions for the first time. It was shown from the voltammograms that the peak current density of methanol oxidation on the nanoPt/Ti electrode increases significantly compared to the polycrystalline Pt. As shown in anodic polarization curves at 1 mV/s, the peak current density on the nanoPt/Ti is over 45 times higher than that on the polycrystalline Pt. Moreover, chronoamperometric measurements at different potentials locating round the peak potential of methanol oxidation exhibit highly stable current densities under the applied experimental conditions.

Key words: Nanoporous platinum electrode, Methanol oxidation, Electrocatalysis, Hydrothermal process

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