Electron transfer-induced hydrogenation of anthracene catalyzed by gold and silver nanoparticles

Jin Pei Deng, Wen Chen Shih, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

62 引文 斯高帕斯(Scopus)

摘要

Anthracene hydrogenation in aqueous micellar solutions is catalyzed at room temperature by ionic-surfactantprotected gold and silver nanoparticles (NPs) with well-controlled particle sizes. When sodium borohydride was used as the hydrogen source in the presence of these NPs, the only product obtained in the reaction is 9,10-dihydroanthracene. During the course of the reaction, a blue shift in the surface plasmon resonance band of silver NPs was more prominent and lasted longer than that of gold NPs. The difference in the optical property of metal NPs was related to the charging of their surfaces, indicating that the metal NPs play a role as the nanoelectrode storing electrons from hydrides. At the same time, a remarkable size-dependence of catalytic activity was found for both gold and silver NPs. Mechanism about the electron transfer-relaying effects of metal NPs is proposed for the hydrogenation reaction.

原文英語
頁(從 - 到)9723-9728
頁數6
期刊Journal of Physical Chemistry C
111
發行號27
DOIs
出版狀態已發佈 - 7月 12 2007
對外發佈

ASJC Scopus subject areas

  • 電子、光磁材料
  • 能源(全部)
  • 物理與理論化學
  • 表面、塗料和薄膜

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