碳纳米管纯化对Pt/CNTs催化甲醇电化学氧化活性的影响

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (10): 1924.

碳纳米管纯化对Pt/CNTs催化甲醇电化学氧化活性的影响

杜秉忱¹, 刘长鹏¹, 韩飞¹, 邢巍¹, 陆天虹¹, 桑革²

1. 中国科学院长春应用化学研究所, 长春130022;
2. 中国工程物理研究院, 绵阳629100

收稿日期:2003-08-21 出版日期:2004-10-24 发布日期:2004-10-24
基金资助:
国家“八六三”计划(批准号:2001AA323060);“九七三”计划项目(批准号:G2000026408);国家自然科学基金(批准号:20373068)资助

Effect of Purification of Carbon Nanotubes on Catalytic Activity of Pt/CNTs in Electrochemical Oxidation of Methanol

DU Bing-Chen¹, LIU Chang-Peng¹, HAN Fei¹, XING Wei¹, LU Tian-Hong¹, SANG Ge²

1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2. Chinese Academy of Physical Engineering, Mianyang 621900, China

Received:2003-08-21 Online:2004-10-24 Published:2004-10-24

摘要/Abstract

摘要： 探索了一种适用于Pt/CNTs催化剂的纯化方法.利用比表面积测定、X射线衍射(XRD)、透射电子显微镜(TEM)和电化学等手段进行了表征.研究结果表明,经该方法纯化的CNTs作为载体制备的阳极催化剂表现出明显优于相应的混酸氧化法纯化的CNTs为载体的催化剂催化性能.

关键词: 碳纳米管, 纯化, 电催化, 直接甲醇燃料电池

Abstract: Carbon nonotubes(CNTs) were considered as the potential supports for heterogeneous catalysts, especially for liquid-phase reaction. A novel method for CNTs purification was proposed and a catalyst Pt/CNTs were obtained by using the method. The catalyst was characterized by TEM, XRD, BET and cyclic voltammogram curves and applied to the electrochemical oxidation of methanol. It is found that the purification methods have an obvious influence on the catalytical activities of Pt/CNTs towards the electrochemical oxidation of methanol, and the catalytic performance of the cathodic catalyst Pt/CNTs with CNTs as the support which was obtained by multi-step purification method is much better than that of the catalyst Pt/CNTs obtained by mixed acid oxidation purification

Key words: Carbon nanotubes, Purification, Electrocatalysis, Direct methanol fuel cell

中图分类号:

O646

TrendMD:

杜秉忱, 刘长鹏, 韩飞, 邢巍, 陆天虹, 桑革. 碳纳米管纯化对Pt/CNTs催化甲醇电化学氧化活性的影响. 高等学校化学学报, 2004, 25(10): 1924.

DU Bing-Chen, LIU Chang-Peng, HAN Fei, XING Wei, LU Tian-Hong, SANG Ge . Effect of Purification of Carbon Nanotubes on Catalytic Activity of Pt/CNTs in Electrochemical Oxidation of Methanol. Chem. J. Chinese Universities, 2004, 25(10): 1924.

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