+高级检索
Pt-W-Ru-Se簇合物用于DMFC氧还原性能的研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金(20476067);山西省自然科学基金(20041021)


Investigation on Oxygen Reduction of Pt-W-Ru-Se Cluster Used for Direct Methanol Fuel Cells
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    用低温合成法制备出不同Pt掺杂量的Pt-W-Ru-Se催化剂,应用旋转圆盘电极电位扫描法测试其对氧还原反应的催化作用,采用XRD、EDS、XPS技术表征结构及表面组成。结果表明,Pt能够显著增强W-Ru-Se对氧还原反应的催化活性,尤其以含5%Pt(质量分数, 下同)的Pt-W-Ru-Se催化剂最为明显,在0.5 mol·L-1 H2SO4中其对氧还原反应的电催化活性超过了W-Ru-Se和Pt;甲醇存在时,其稳定性和抗甲醇性也都超过了Pt

    Abstract:

    Pt-W-Ru-Se catalysts with different Pt contents were fabricated by low-temperature synthesis and their catalysis effect on the oxygen reduction reaction was tested by the rotating-disk-electrode potential sweep method. The microstructure and surface composition of the obtained catalysts were characterized by XRD, EDS and XPS. Results show that Pt can greatly enhance the catalysis activity of W-Ru-Se to oxygen reduction. In particular, Pt-W-Ru-Se with 5% Pt (mass fraction, similarly hereinafter) is the most obvious one, whose catalysis activity to oxygen reduction is superior to that of W-Ru-Se and Pt in 0.5 mol·L-1 H2SO4. Its stability and resistance-methanol is better than that of Pt when there is methanol

    参考文献
    相似文献
    引证文献
引用本文

牛秀红,刘世斌. Pt-W-Ru-Se簇合物用于DMFC氧还原性能的研究[J].稀有金属材料与工程,2010,39(4):647~651.[Niu Xiuhong, Liu Shibin. Investigation on Oxygen Reduction of Pt-W-Ru-Se Cluster Used for Direct Methanol Fuel Cells[J]. Rare Metal Materials and Engineering,2010,39(4):647~651.]
DOI:[doi]

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2009-04-23
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期:
  • 出版日期: