复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (6): 53-56.

• 应用研究 • 上一篇    下一篇

聚苯胺/钯纳米复合材料的原位还原法制备及表征

范竞雄, 杨继萍*   

  1. 北京航空航天大学材料科学与工程学院空天材料与服役教育部重点实验室,北京 100191
  • 收稿日期:2012-12-25 出版日期:2013-09-28 发布日期:2022-03-15
  • 通讯作者: 杨继萍(1967-), 女,教授,研究生导师,主要研究方向为高分子及复合材料,jyang@buaa.edu.cn。
  • 作者简介:范竞雄(1988-), 男,硕士研究生,主要研究方向为钯基聚苯胺阳极催化剂。
  • 基金资助:
    国家自然科学基金(21174009)

SYNTHESIS AND CHARACTERIZATION OF POLYANILINE-PALLADIUM NANOCOMPOSITES VIA IN-SITU REDUCTION METHOD

FAN Jing-xiong, YANG Ji-ping*   

  1. Key Laboratory of Aerospace Materials and Performance,Ministry of Education,School of Materials Science and Engineering,Beihang University,Beijing 100191,China
  • Received:2012-12-25 Online:2013-09-28 Published:2022-03-15

摘要: 本文采用原位还原法,利用聚苯胺本身的还原性,对硝酸钯进行了还原和负载,制得了聚苯胺/钯纳米复合材料,考察了掺杂态及脱掺杂态聚苯胺对原位还原反应的影响,通过红外光谱、紫外光谱、扫描电镜和X射线衍射对所得复合材料的结构进行了表征,并用循环伏安法测定了复合材料对甲酸的催化性能。结果表明所制备的复合材料对甲酸具有一定的催化性能,且脱掺杂态聚苯胺复合材料的性能要优于掺杂态聚苯胺复合材料的性能。

关键词: 原位还原法, 聚苯胺, 钯纳米粒子, 复合材料

Abstract: In this paper, polyaniline-palladium nanocomposites, a kind of fuel cell catalysts in the system of formic acid, were successfully prepared by the method of in-situ reduction, in which palladium nitrate was used as the precursor of palladium nanoparticles and polyaniline (PANI) as the reductant and supporter of resulting palladium nanoparticles. The difference between doping PANI and dedoping PANI was studied and the final products were characterized using FT-IR, UV-Vis, X-ray diffraction (XRD), SEM and cyclic voltammetry(CV). The CV results suggested that the composites had the capability of catalyzing formic acid, while the dedoping one showed better performance than the doping one.

Key words: In-situ reduction method, polyaniline, palladium nanoparticles, nanocomposites

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