您当前所在位置: 首页 > 学者

刘世斌

  • 28浏览

  • 0点赞

  • 0收藏

  • 0分享

  • 40下载

  • 0评论

  • 引用

期刊论文

Pt掺杂对Mo-Ru-Se簇合物电催化氧还原性能的影响

刘世斌刘世斌*牛秀红段东红张忠林郝晓刚孙彦平

无机化学学报,2007,23(4):683~687,-0001,():

URL:

摘要/描述

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-0.05V.

【免责声明】以下全部内容由[刘世斌]上传于[2011年06月10日 14时13分43秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

我要评论

全部评论 0

本学者其他成果

    同领域成果