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Preparation of platinum supported on carbon blacks with different surface chemical characteristics

  • Jia Rong-Li
  • , Wang Cheng-Yang
  • , Zhu Bin
  • Tianjin University
  • KTH Royal Institute of Technology

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

In a study of the preparation of Pt/C eletrocatalysts, a set of modified Vulcan XC-72R carbon black supports have been prepared by nitric acid or hydrogen peroxide oxidation, or thermal treatment in nitrogen flow. The supports obtained by these methods had largely identical pore structure, but different from the amount of surface oxygen-containing groups. The physical and surface chemical nature of the supports was characterized by XPS, BET, FTIR and acid-base titration. The above pre-treatment-carbon supported platinum catalysts were prepared by impregnation-reduction method with formaldehyde as the reducing agent, H2PtCl6 as precursor. The effect of the amount of surface oxygen-containing groups of Vulcan XC-72R carbon black on Pt/C catalysts dispersion was studied by the characterization with XRD and TEM. It has been found that decreasing the amount of surface oxygen-containing groups on carbon supports favored the platinum dispersion on the Pt/C catalysts.

源语言英语
主期刊名Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005
编辑R.K. Shah, E.U. Ubong, S.S. Samuelsen
235-238
页数4
出版状态已出版 - 2005
已对外发布
活动3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 - Ypsilanti, MI, 美国
期限: 23 5月 200525 5月 2005

丛书

姓名Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005

会议

会议3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005
国家/地区美国
Ypsilanti, MI
时期23/05/0525/05/05

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