Tricomponent coassembly approach to synthesize ordered mesoporous carbon/silica nanocomposites and their derivative mesoporous silicas with dual porosities

Yuhui Li, Jing Wei, Wei Luo, Chun Wang, Wei Li, Shanshan Feng, Qin Yue, Minghong Wang, Ahmed A. Elzatahry, Yonghui Deng, Dongyuan Zhao

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35 Citations (Scopus)

Abstract

Highly ordered mesoporous carbon/silica nanocomposites and dual-mesoporous silicas with a 3D cubic structure were successfully synthesized through a facile tricomponent coassembly approach by using the lab-made diblock copolymer poly(ethylene oxide)-b-polystyrene as a template. The mesoporous silicas exhibit a high surface area and uniform bimodal mesopores. The bimodal mesopores can be tuned by simply changing the ratio of carbon/silica precursors and the pyrolysis temperature in N2. Gold nanoparticles were successfully loaded in the primary large mesopores for use as a heterogeneous nanacatalyst, which exhibits excellent performance in the epoxidation of styrene, demonstrating their potential for catalyst support.
Original languageEnglish
Pages (from-to)2438-2444
Number of pages7
JournalChemistry of Materials
Volume26
Issue number7
DOIs
Publication statusPublished - 8 Apr 2014
Externally publishedYes

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