Gold microspheres with hierarchical structure/conducting polymer composite film: Preparation, characterization and application as catalyst
Gold microspheres with hierarchical structure/conducting polymer composite film: Preparation, characterization and application as catalyst
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分级结构金微球/导电聚合物复合膜的制备、表征及催化剂应用
DOI：
10.1016/j.polymer.2009.12.043
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发表时间：
2010-03
期刊：
影响因子：
4.6
通讯作者：
Shi, Zhiquan
中科院分区：
文献类型：
--
作者：
Lu, Yun;Xia, Youyi;Shi, Zhiquan
通过在导电膜表面原位还原AuCl4-，成功一步制备了具有新型分级结构的单分散金微球及其与新型导电共聚物聚(丙烯腈-共-乙酸乙烯酯)-接枝-聚(3,4-乙烯二氧噻吩)的导电膜的复合材料。对所制备的复合膜的形貌和结构进行了表征，并研究了其对对硝基苯酚还原的催化作用。通过控制HAuCl4的浓度和P(AN-co-VA)-g-PEDOT共聚物膜的电导率(或PEDOT含量)，可以有效调节金微球的数量和尺寸。这表明导电共聚物的聚(3,4-乙撑二氧噻吩)侧链在具有分级结构的Au微球的形成过程中同时发挥还原和结构导向作用。
Monodisperse gold microspheres with novel hierarchical structure and their composite integrated with a conducting film obtained from a new conducting copolymer, poly(acrylonitrile-co-vinyl acetate) -graft- poly(3,4-ethylenedioxythiophene), have been successfully prepared in one step via the in-situ reduction of AuCl4-on the conducting film surface. The morphology and structure of the as-prepared composite film are characterized, and its catalytic effect on reduction of p-nitrophenol is investigated. By controlling the concentration of HAuCl4and the conductivity (or PEDOT content) of P(AN-co-VA)-g-PEDOT copolymer film, the amount and the size of gold microspheres can be effectively adjusted. It is suggested that the side poly(3,4-ethylenedioxythiophene) chains of the conducting copolymer play both reducing and structure-directing roles during the formation of Au microspheres with hierarchical structure.
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