Synthesis of hierarchical Polystyrene/Polyaniline @Au nanostructures of different surface states and studies of their catalytic properties

We synthesized hierarchical Polystyrene/Polyaniline@Au （PS/PANI@Au） catalysts through a seeded swelling polymerization and in-situ reduction procedure. PS/PANI@Au catalysts possess a core of PS as seed and template, a PANI shell with fibers and uniform gold nanoparticles on the surface. The configur...

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Published in中国科学：化学英文版 no. 9; pp. 1211 - 1217
Main Author YU Jie GUO WanChun YANG Mu LUAN Yi TAO JinZhang ZHANG XiaoWei
Format Journal Article
LanguageEnglish
Published 2014
Subjects
催化性能
合成
纳米结构
聚苯乙烯
聚苯胺
表面状态
还原方法
金纳米粒子
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Summary:We synthesized hierarchical Polystyrene/Polyaniline@Au （PS/PANI@Au） catalysts through a seeded swelling polymerization and in-situ reduction procedure. PS/PANI@Au catalysts possess a core of PS as seed and template, a PANI shell with fibers and uniform gold nanoparticles on the surface. The configuration changes of the PANI chains resulting from the doping/ dedoping procedure led to various loading amounts of Au nanoparticles. Reduction of 4-nitrophenol was chosen as the probe reaction to evaluate the catalytic activity of supported Au nanocatalysts. The catalytic results indicated that dedoping treatment of the PS/PANI supports provides stronger coordinative ability to metal nanoparticles as well as more -N= groups, which re- sults in a better catalytic performance towards the reduction of 4-nitrophenol.
Bibliography:We synthesized hierarchical Polystyrene/Polyaniline@Au （PS/PANI@Au） catalysts through a seeded swelling polymerization and in-situ reduction procedure. PS/PANI@Au catalysts possess a core of PS as seed and template, a PANI shell with fibers and uniform gold nanoparticles on the surface. The configuration changes of the PANI chains resulting from the doping/ dedoping procedure led to various loading amounts of Au nanoparticles. Reduction of 4-nitrophenol was chosen as the probe reaction to evaluate the catalytic activity of supported Au nanocatalysts. The catalytic results indicated that dedoping treatment of the PS/PANI supports provides stronger coordinative ability to metal nanoparticles as well as more -N= groups, which re- sults in a better catalytic performance towards the reduction of 4-nitrophenol.
hierarchical PS/PANI, supported gold catalyst, reduction of 4-nitrophenol, doping/dedoping treatment
11-5839/O6
ISSN:1674-7291
1869-1870