Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 331, Issue 1-2, Pages 35-39Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2010.07.013
Keywords
Hierarchical gold microspheres; Polyaniline/polyacrylonitrile blend film; Catalyst
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Funding
- Zhejiang Provincial Science and Technology Project of P. R. China [2009C31133]
- Anhui Provincial Education committee of P. R. China [KJ2009A013Z]
- Young Teacher Fund [QZ200906]
- Anhui University of Technology
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Without any other additives or additional energy, gold quasi microspheres with novel hierarchical structure have been successfully prepared and integrated simultaneously with a conducting polyaniline/polyacrylonitrile blend film via the in situ reduction of AuCl(4)(-) on the film surface. The morphology and structure of the as-prepared gold microspheres are characterized, and its application as catalyst is also investigated. By controlling the concentration of HAuCl(4) and polyaniline content (or conductivity) of polyaniline/polyacrylonitrile blend films, the amount and size of gold microspheres can be effectively adjusted. It is suggested that the polyaniline chains of the blend films play both reducing and structure-directing roles during the formation of Au microspheres with hierarchical structure. The catalytic studies show that the hierarchical gold microspheres give highly catalytic activity when taking the reduction of p-nitrophenol as a mode reaction. (C) 2010 Elsevier B.V. All rights reserved.
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