期刊
REACTIVE & FUNCTIONAL POLYMERS
卷 67, 期 10, 页码 1072-1082出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.reactfunctpolym.2007.06.008
关键词
polymer; macrocellular foams; gold nanoparticles; catalysis
Gold nanoparticles have been generated for the first time within open-cell macrocellular polyHIPE matrices, leading to new hybrid organic-inorganic catalytic supports labelled Au@polyHIPE. The overall synthesis can be realized with ease, as it is based on the spontaneous nucleation of gold nanoparticles. These new hybrid organic-inorganic materials have then been tested for heterogeneous catalysis, particularly for eosin Y reduction in the presence of NaBH4. In this reductive media the as-synthesized hybrid catalytic supports Au@polyHIPE exhibit a good activity. All the kinetic parameters are discussed in term of internal surface (porosity), external surface (shape), temperature and gold loading revealing a first order reaction. (c) 2007 Elsevier Ltd. All rights reserved.
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