| 碳纳米管担载PtSn阳极催化剂对乙醇的电催化氧化性能研究 |
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| 引用本文： | 赵新生,孙公权,姜鲁华,毛庆,辛勤,衣宝廉,杨少华. 碳纳米管担载PtSn阳极催化剂对乙醇的电催化氧化性能研究[J]. 高等学校化学学报, 2005, 26(7): 1304-1308 |
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| 作者姓名： | 赵新生 孙公权 姜鲁华 毛庆 辛勤 衣宝廉 杨少华 |
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| 作者单位： | 1. 中国科学院大连化学物理研究所,大连116023;2. 中国科学院研究生院,北京100039 |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划);中国科学院知识创新工程项目 |
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| 摘 要： | 以多壁碳纳米管(MWNTs)为载体制备了担载型PtSn纳米催化剂,对其微观形貌和电催化性能进行了表征.透射电镜(TEM)及X射线衍射(XRD)测试结果表明,以MWNTs为载体提高了PtSn金属粒子的分散度,粒径分布范围在1.5-6.5nm之间,PtSn/MWNTs催化剂的平均粒径为3.6nm.循环伏安、计时电流及DEFC单池的实验结果表明,由于MWNTs具有独特的结构及丰富的表面基团和较高的导电率,PtSn/MWNTs催化剂对乙醇的催化氧化表现出比PtSn/XC-72更高的活性.
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| 关 键 词： | 直接乙醇燃料电池 碳纳米管 PtSn 电催化剂 |
| 文章编号： | 0251-0790(2005)07-1304-05 |
| 收稿时间： | 2004-08-03 |
Electrocatalytic Properties of Multi-wall Carbon Nanotubes-supported PtSn Anodic Catalyst for Ethanol Electro-oxidation |
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| ZHAO Xin-sheng,SUN Gong-quan,JIANG Lu-Hua,MAO Qing,XIN Qin,YI Bao-Lian,YANG Shao-hua. Electrocatalytic Properties of Multi-wall Carbon Nanotubes-supported PtSn Anodic Catalyst for Ethanol Electro-oxidation[J]. Chemical Research In Chinese Universities, 2005, 26(7): 1304-1308 |
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| Authors: | ZHAO Xin-sheng SUN Gong-quan JIANG Lu-Hua MAO Qing XIN Qin YI Bao-Lian YANG Shao-hua |
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| Affiliation: | 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; =;2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Multi-wall carbon nanotubes(MWNTs)-supported PtSn anodic electrocatalyst was prepared for direct ethanol fuel cell(DEFC). TEM image and XRD patterns reveal that PtSn/MWNTs catalyst exhibited a high and homogeneous dispersion of metal particles with a narrow particle size distribution range from 1.5 to 6.5 nm, and the mean particles size was about 3.6 nm. The results of cyclic voltammetry(CV), chronoamperometry(CP) and single cell indicated that the PtSn/MWNTs presented a higher activity toward ethanol electro-oxidation than that of PtSn/XC-72 catalyst. The high performance could be attributed to the unique structure, higher electric properties of MWNTs, compared with that of carbon black XC-72 as the support. |
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| Keywords: | PtSn |
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