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

IF 7.2 2区材料科学 Q2 CHEMISTRY, PHYSICAL Chemistry of Materials Pub Date : 2003-04-15 DOI:10.1021/cm0213218

Yannick Guari, Chloé Thieuleux, Ahmad Mehdi, Catherine Reyé, Robert J. P. Corriu, Silvia Gomez-Gallardo, Karine Philippot, Bruno Chaudret

引用次数: 90

Abstract

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.

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有机金属两步法在硫醇功能化HMS-C16和SBA-15型材料中原位形成金纳米颗粒

使用基于(i)将有机金前驱体锚定在含有巯基的功能化有序介孔二氧化硅通道内的两步法;(ii)通过化学还原，我们制备了含有金(0)纳米颗粒的材料，这些纳米颗粒完全位于孔隙通道内。通过改变有机金前驱体/巯基的比例，我们证明了在还原前络合有机金前驱体的必要性。使用这种方法，可以获得含金量高达16.1 wt %的金，并且在材料的孔隙中有规律地分布着狭窄的纳米颗粒。

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来源期刊

Chemistry of Materials 工程技术-材料科学：综合

CiteScore

14.10

自引率

5.80%

发文量

929

审稿时长

1.5 months

期刊介绍： The journal Chemistry of Materials focuses on publishing original research at the intersection of materials science and chemistry. The studies published in the journal involve chemistry as a prominent component and explore topics such as the design, synthesis, characterization, processing, understanding, and application of functional or potentially functional materials. The journal covers various areas of interest, including inorganic and organic solid-state chemistry, nanomaterials, biomaterials, thin films and polymers, and composite/hybrid materials. The journal particularly seeks papers that highlight the creation or development of innovative materials with novel optical, electrical, magnetic, catalytic, or mechanical properties. It is essential that manuscripts on these topics have a primary focus on the chemistry of materials and represent a significant advancement compared to prior research. Before external reviews are sought, submitted manuscripts undergo a review process by a minimum of two editors to ensure their appropriateness for the journal and the presence of sufficient evidence of a significant advance that will be of broad interest to the materials chemistry community.