In situ formation of gold nanoparticles within thiol functionalized HMS-C16 and SBA-15 type materials via an organometallic two-step approach

被引:88
作者
Guari, Y
Thieuleux, C
Mehdi, A
Reyé, C
Corriu, RJP
Gomez-Gallardo, S
Philippot, K
Chaudret, B
机构
[1] Univ Montpellier 2, UMR 5637 CNRS, Lab Chim Mol & Organ Solide, F-34095 Montpellier 5, France
[2] CNRS, Chim Coordinat Lab, F-31077 Toulouse 04, France
关键词
D O I
10.1021/cm0213218
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Using a two-step procedure based on (i) anchoring an organogold precursor within the channels of functionalized ordered mesoporous silica containing mercapto groups; (ii) followed by chemical reduction, we prepared materials containing gold (0) nanoparticles exclusively located within the pore channels. By modifying the organogold precursor/mercapto groups ratio, we demonstrate the necessity of the complexation of the organogold precursor prior to reduction. Using this methodology, gold content as high as 16.1 wt % with a narrow size distribution of nanoparticles regularly distributed within the pores of the material was achieved.
引用
收藏
页码:2017 / 2024
页数:8
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