Capping agent-free highly dispersed noble metal nanoparticles supported in ordered mesoporous carbon with short channels and their catalytic applications

Wenjun Gao, Siwen Li, Manas Pal, Yong Liu, Xiaoyue Wan, Wei Li, Shuai Wang, Changyao Wang, Gengfeng Zheng, Dongyuan Zhao

Research output: Contribution to journalArticleResearchpeer-review

9 Citations (Scopus)

Abstract

Homogeneously dispersed small noble metal nanoparticles such as Pt and Au supported on ordered mesoporous carbon nanospheres have been successfully synthesized via a facile hydrothermal method without using any capping agent and further post-treated with reducing agent. The average sizes of the Pt and Au nanoparticles are estimated to be ∼1.7 and ∼5 nm. The small size of the nanoparticles and short length channels of mesopores greatly improve their catalytic properties. As proof-of-concept, the catalytic performances of the mesoporous metal/C composites are investigated using the reduction of 4-nitrophenol as a model reaction. Furthermore, the catalytic activity of the obtained catalysts for oxidation of benzyl alcohol to benzoic acid in the presence of O2 at 60 °C is also investigated. The results demonstrate that such mesoporous carbon supported metal nanoparticles can be used as reusable catalysts with high catalytic activity.

Original languageEnglish
Pages (from-to)61064-61072
Number of pages9
JournalRSC Advances
Volume6
Issue number66
DOIs
Publication statusPublished - 2016
Externally publishedYes

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