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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Bibliographic Details
Published in:Science China. Chemistry 2014-09, Vol.57 (9), p.1211-1217
Main Authors: Yu, Jie, Guo, WanChun, Yang, Mu, Luan, Yi, Tao, JinZhang, Zhang, XiaoWei
Format: Article
Language:English
Subjects:
Catalysts
Catalytic activity
Chemical synthesis
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Gold
Nanoparticles
Nitrophenol
Polyanilines
Polystyrene resins
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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 results in a better catalytic performance towards the reduction of 4-nitrophenol.
ISSN:1674-7291
1869-1870
DOI:10.1007/s11426-014-5106-y