In Situ Formation of Gold Nanoparticles within Thiol Functionalized HMS-C16 and SBA-15 Type Materials via an Organometallic Two-Step Approach

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• 作者：Yannick Guari ; Chloé ; Thieuleux ; Ahmad Mehdi ; Catherine Reyé ; Robert J. P. Corriu ; Silvia Gomez-Gallardo ; Karine Philippot ; and Bruno Chaudret
• 刊名：Chemistry of Materials
• 出版年：2003
• 出版时间：May 20, 2003
• 年：2003
• 卷：15
• 期：10
• 页码：2017 - 2024
• 全文大小：251K
• 年卷期：v.15,no.10(May 20, 2003)
• ISSN：1520-5002

文摘

Using a two-step procedure based on (i) anchoring an organogold precursor within thechannels of functionalized ordered mesoporous silica containing mercapto groups; (ii) followedby chemical reduction, we prepared materials containing gold (0) nanoparticles exclusivelylocated within the pore channels. By modifying the organogold precursor/mercapto groupsratio, we demonstrate the necessity of the complexation of the organogold precursor prior toreduction. Using this methodology, gold content as high as 16.1 wt % with a narrow sizedistribution of nanoparticles regularly distributed within the pores of the material wasachieved.