Pt and Pt-Ru Nanoparticles Dispersed on Ethylenediamine Grafted Carbon Nanotubes as New Electrocatalysts: Preparation and Electrocatalytic Properties for Ethanol Electrooxidation

被引：14
作者：
Zhong Xinxian [1 ,2 ]
Zhang Xiaohua [1 ]
Sun Xinping [1 ]
Liu Bo [1 ]
Kuang Yafei [1 ]
Chen Jinhua [1 ]
机构：
[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China
[2] Guangxi Normal Univ, Coll Chem & Chem Engn, Guilin 541004, Guangxi, Peoples R China
来源：
CHINESE JOURNAL OF CHEMISTRY | 2009年 / 27卷 / 01期
基金：
中国国家自然科学基金;
关键词：
ethylenediamine; multiwalled carbon nanotube; ethanol electrooxidation; METHANOL FUEL-CELL; ANODE CATALYSTS; OXIDATION; PLATINUM; ELECTRODES; PERFORMANCE; COMPOSITE; SUPPORTS; ACID; FUNCTIONALITY;
D O I：
10.1002/cjoc.200990026
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
As the support of Pt and Pt-Ru catalysts for ethanol electrooxidation, the ethylenediamine (ED)-grafted multi-walled carbon nanotubes (MWNT) were prepared by a chemical synthesis method and characterized by Fourier transform infrared spectroscopy. The morphology and elemental composition of the Pt-Ru/ED/MWNT and Pt/ED/MWNT catalysts were characterized by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy. TEM results demonstrate that the ED-grafted MWNT is beneficial to loading Pt-Ru and Pt electrocatalysts with well dispersion and small particle sizes. On the other hand, the electrocatalytic properties of the Pt-Ru/ED/MWNT and Pt/ED/MWNT catalysts were characterized by cyclic voltammetry and chronoamperometry. Under the same loading mass of catalyst, the electrocatalytic activities of both Pt-Ru/MWNT/graphite and Pt/MWNT/graphite electrodes are enhanced obviously by the introduction of ED. The electrocatalytic activity of the Pt/ED/MWNT/graphite electrode is even higher than that of the Pt-Ru/MWNT/graphite electrode. These results indicate that the ED/MWNT is a promising catalyst support for ethanol electrooxidation.
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收藏
页码：56 / 62
页数：7
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