Journal
APPLIED ORGANOMETALLIC CHEMISTRY
Volume 37, Issue 2, Pages -Publisher
WILEY
DOI: 10.1002/aoc.6962
Keywords
catalyst; conversion efficiency; gold nanoparticles; mesoporous silica
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Gold@mesoporous silica nanosheet (Au@MSNS) catalyst was synthesized by one-step reduction of HAuCl4 with formaldehyde. Subsequent SiO2 recoating procedure reduced the average size of Au nanoparticles, leading to significantly improved catalytic activity of modified Au@MSNSs for 4-nitrophenol reduction. Moreover, this procedure enhanced the mechanical properties and reusability of the catalyst, demonstrating a superior turnover frequency of 91.954 x 10(-3) mol g(-1) h(-1) in cyclic reaction.
Gold@mesoporous silica nanosheet (Au@MSNS) catalyst was synthesized by one-pot reduction of HAuCl4 with formaldehyde. Subsequent SiO2 recoating procedure was shown to reduce the average size of the loading Au nanoparticles, resulting in significantly improved catalytic activity of the modified Au@MSNSs against reduction of 4-nitrophenol. Moreover, this procedure improves mechanical properties and reusability of the catalyst demonstrating superior turnover frequency of 91.954 x 10(-3) mol g(-1) h(-1) in cyclic reaction.
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