Photoswitchable Catalysis Mediated by Dynamic Aggregation of Nanoparticles

Catalytic activity of gold nanoparticles in a hydrosilylation reaction is controlled by irradiation with UV or visible light. When exposed to UV, the particles aggregate and the catalysis is effectively switched “off”. When the particles are exposed to visible light, the particles redisperse and cat...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2010-08, Vol.132 (32), p.11018-11020
Main Authors: Wei, Yanhu, Han, Shuangbing, Kim, Jiwon, Soh, Siowling, Grzybowski, Bartosz A
Format: Article
Language:English
Subjects:
Catalysis
Gold - chemistry
Light
Metal Nanoparticles - chemistry
Models, Molecular
Molecular Conformation
Photochemical Processes
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Summary:Catalytic activity of gold nanoparticles in a hydrosilylation reaction is controlled by irradiation with UV or visible light. When exposed to UV, the particles aggregate and the catalysis is effectively switched “off”. When the particles are exposed to visible light, the particles redisperse and catalysis can proceed.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja104260n