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| 泡沫镍载碳化钨催化剂上的析氢反应 | |
| 引用本文： | 吴梅,魏子栋,沈培康.泡沫镍载碳化钨催化剂上的析氢反应[J].催化学报,2007,28(4):307-311. |
| 作者姓名： | 吴梅 魏子栋 沈培康 |
| 作者单位： | 1. 重庆大学化学化工学院,重庆,400044;中山大学物理科学与工程技术学院光电材料与技术国家重点实验室,广东广州,510275 2. 重庆大学化学化工学院,重庆,400044 3. 中山大学物理科学与工程技术学院光电材料与技术国家重点实验室,广东广州,510275 |
| 基金项目： | 国家自然科学基金 , 广东省自然科学基金 , 广东省科技基金 , 广州市重点科技基金 |
| 摘 要： | 结合直接化学还原法和交替微波法制备了泡沫Ni载Ni-WC催化剂,用X射线衍射、扫描电镜和透射电镜对催化剂进行了表征,研究了其析氢电催化性能.结果表明,在相同条件下,泡沫Ni载Ni-WC催化剂的析氢起始电位与泡沫Ni相比降低了60 mV左右.电解质浓度和温度对泡沫Ni载Ni-WC催化剂的析氢电催化活性有很大影响. |
| 关 键 词： | 化学还原法 微波 泡沫镍 碳化钨 负载型催化剂 析氢 电催化 |
| 文章编号： | 0253-9837（2007）04-0307-05 |
| 修稿时间： | 2006-09-24 |
Hydrogen Evolution Reaction on Foam Ni-Supported WC Electrocatalyst |
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| WU Mei,WEI Zidong,SHEN Peikang.Hydrogen Evolution Reaction on Foam Ni-Supported WC Electrocatalyst[J].Chinese Journal of Catalysis,2007,28(4):307-311. | |
| Authors: | WU Mei WEI Zidong SHEN Peikang |
| Institution: | 1 School of Chemical Engineering, Chongqing University, Chongqing 400044, China ; 2 State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, Guangdong, China |
| Abstract: | Foam Ni-supported Ni-WC electrocatalysts were prepared using direct chemical reduction and intermittent microwave heating methods.The electrocatalysts were characterized by X-ray diffraction,scanning electron microscopy,and transmission electron microscopy.The results show that the onset potential for the hydrogen evolution reaction on the foam Ni-WC electrocatalyst is 60 mV more positive than that on the pure foam Ni electrocatalyst.The concentration of the electrolyte and the temperature are critical for the catalytic performance of the foam Ni-WC electrocatalyst. |
| Keywords: | chemical reduction microwave foam nickel tungsten carbide supported catalyst hydrogen evolution electrocatalysis |
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