| 催化剂载体对硼氢化钠在纳米金电极上电氧化行为的影响 |
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| 引用本文： | 裴斧,王先友,何培瑛,王雁生,王宏,易兰花,陈权启. 催化剂载体对硼氢化钠在纳米金电极上电氧化行为的影响[J]. 化学学报, 2010, 68(2): 136-142 |
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| 作者姓名： | 裴斧 王先友 何培瑛 王雁生 王宏 易兰花 陈权启 |
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| 作者单位： | 湘潭大学化学学院环境友好化学与应用教育部重点实验室,湖南,湘潭,411105 |
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| 基金项目： | 湖南省教育重点资助项目(No.08A067) |
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| 摘 要： | 分别以中孔炭(MPC)和VXC-72R炭黑作载体,制备了中孔炭载纳米Au粒子(Au/MPC)和VXC-72R炭黑载纳米Au粒子(Au/CB),并将其用作直接硼氢化钠燃料电池阳极电氧化催化剂.分别用X-射线衍射(XRD)、透射电镜(TEM)等比较了不同载体催化剂的结构和形貌.结果表明,纳米Au粒子均为面心立方结构,Au/MPC中纳米Au粒子的粒径为16nm左右比Au/CB中的纳米Au粒子的更小,且均匀分散在载体的表面.用循环伏安曲线和动电位极化曲线等比较了不同载体催化剂的电化学特性.结果表明,Au/CB的电流密度为38.10mA·cm-2,而Au/MPC的电流密度达到42.88mA·cm-2,比Au/CB的电流密度提高了12.5%.
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| 关 键 词： | 直接硼氢化钠燃料电池 阳极催化剂 催化剂载体 电氧化 |
| 收稿时间： | 2009-06-15 |
| 修稿时间： | 2009-09-04 |
Effect of Catalyst Supporter on Electrooxidation of Sodium Borohydride on Gold Electrode |
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| Pei,Fu,Wang,Xianyou,He,Peiying,Wang,Yansheng,Wang,Hong,Yi,Lanhua,Chen,Quanqi. Effect of Catalyst Supporter on Electrooxidation of Sodium Borohydride on Gold Electrode[J]. Acta Chimica Sinica, 2010, 68(2): 136-142 |
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| Authors: | Pei Fu Wang Xianyou He Peiying Wang Yansheng Wang Hong Yi Lanhua Chen Quanqi |
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| Affiliation: | Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education;Xiangtan University;Hunan 411105 |
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| Abstract: | The nanosized Au particles supported by mesoporous carbon(MPC) and VXC-72R carbon black(CB) were prepared as catalyst for the direct oxidation of sodium borohydride,and labeled as Au/MPC and Au/CB,respectively.The structure and surface morphology of Au/MPC and Au/CB were characterized by X-ray diffraction(XRD) and transmission electron microscopy(TEM).The results showed that the nanosized Au particles had a face cubic structure and were uniformly distributed on the surfaces of the mesoporous carbon and VXC-... |
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| Keywords: | direct borohydride fuel cell anode catalyst catalyst supporter electrooxidation |
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