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Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (2): 127-130. Previous Articles     Next Articles

阳离子修饰纳米Pt的合成及其在Nafion膜上的自组装行为研究

唐浩林, 潘牧, 木士春, 袁润章   

  1. 武汉理工大学材料复合新技术国家重点实验室, 武汉, 430070
  • 投稿日期:2003-04-30 修回日期:2003-07-09 发布日期:2014-01-26
  • 通讯作者: 潘牧,E-mail:panmu@mail.whut.edu.cn E-mail:panmu@mail.whut.edu.cn
  • 基金资助:
    教育部博士点基金(No.20020497001)和材料复合技术国家重点实验室开放基金资助项目.

Synthesis of Pt Nano-particles Modified with Cation Ions and Its Self-assembly on Nafion Membrane

TANG Hao-Lin, PAN Mu, MU Shi-Chun, YUAN Run-Zhang   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing, Wuhan University of Technology, Wuhan 430070
  • Received:2003-04-30 Revised:2003-07-09 Published:2014-01-26

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Pt Nano-particles modified with quaternary ammonium cation were synthesized by chemical reduction. Crystalline Pt nano-particles with average diameter of ～4.5 nm, mono-dispersed in the solution, were obtained in the study. The Zeta potential of the Pt particles under different pH values were determined, and then the Pt solution with pH value of 11 8 was selected to assemble. As a result, Pt particles were successfully self-assembled on Nafion membrane surface. Furthermore, a reasonable mathematic model was put forward to ascertain the influence factors and the calculated results were used to explain the experiment results. The Pt particles coated Nafion membrane, which was fabricated without any mechanical operations and had specific strctures, will reasonably have potential application in micro PEMFC (proton exchange membrane fuel cell).

Key words: quaternary ammonium cation, modify, Pt nano-particle, electrostatic self-assembly