| Pt掺杂对Mo-Ru-Se簇合物电催化氧还原性能的影响 |
| |
| 引用本文： | 刘世斌,牛秀红,段东红,张忠林,郝晓刚,孙彦平.Pt掺杂对Mo-Ru-Se簇合物电催化氧还原性能的影响[J].无机化学学报,2007,23(4):683-687. |
| |
| 作者姓名： | 刘世斌 牛秀红 段东红 张忠林 郝晓刚 孙彦平 |
| |
| 作者单位： | 太原理工大学洁净化工研究所,太原,030024 |
| |
| 基金项目： | 国家自然科学基金;山西省自然科学基金 |
| |
| 摘 要： | 直接甲醇燃料电池(DMFC)是理想的移动电源,但因金属Pt阴极催化剂的选择性较差,甲醇在阴极产生“混合电位”,导致电池效率降低。抗甲醇氧电还原催化剂可降低“混合电位”,是解决该问题的有效的方法。
|
| 关 键 词： | 氧电还原 Mo-Ru-Se簇合物 掺杂 性能 |
| 文章编号： | 1001-4861(2007)04-0683-05 |
| 修稿时间： | 2006-09-12 |
Effect of Platinum Doping on the Performance of Oxygen Reduction over Mo-Ru-Se Cluster |
| |
| LIU Shi-Bin,NIU Xiu-Hong,DUAN Dong-Hong,ZHANG Zhong-Lin,HAO Xiao-Gang and SUN Yan-Ping.Effect of Platinum Doping on the Performance of Oxygen Reduction over Mo-Ru-Se Cluster[J].Chinese Journal of Inorganic Chemistry,2007,23(4):683-687. |
| |
| Authors: | LIU Shi-Bin NIU Xiu-Hong DUAN Dong-Hong ZHANG Zhong-Lin HAO Xiao-Gang and SUN Yan-Ping |
| |
| Institution: | Institute of Clean Technique for Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024,Institute of Clean Technique for Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024,Institute of Clean Technique for Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024,Institute of Clean Technique for Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024,Institute of Clean Technique for Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024 and Institute of Clean Technique for Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024 |
| |
| Abstract: | The effect of platinum loading on the performance of oxygen reduction over Ru-based cluster catalyst in acid electrolytes has been studied by rotating disk electrode. The Pt-Mo-Ru-Se catalysts were synthesized by low temperature method and characterized by XRD, EDS and XPS. The activities were measured by potentiodynamic and AC impedance techniques. The results show that Mo-Ru-Se catalysts doped with platinum were with greatly enhanced catalytic activity and methanol resistance and have higher current density and lower overpotential for oxygen reduction reaction than that of platinum-free Mo-Ru-Se catalysts under the same conditions. The Mo-Ru-Se catalyst with 5% Pt loading showed the best performance, and the peak current density was 213 mA·mg-1 in 0.5 mol·L-1 H2SO4 solution, approached 70% of the Pt activity and the initial oxygen reduction potential was -0.05 V. |
| |
| Keywords: | oxygen electro-reduction Mo-Ru-Se cluster doping performance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《无机化学学报》浏览原始摘要信息 |
| 点击此处可从《无机化学学报》下载免费的PDF全文 |
|
