Formation of a Pt1Sn1(niggliite)-silica xerogel nanocomposite using a PtSn (1:1) organometallic precursor

被引:5
作者
Carpenter, JP
Lukehart, CM
Stock, SR
机构
[1] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA
[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
关键词
nanocomposites; nanoparticles; silica xerogels; sol-gel chemistry; niggliite;
D O I
10.1016/S0022-328X(99)00697-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Covalent incorporation of a complex containing a bifunctional thiolate substituent and a 1:1 Pt:Sn metal core stoichiometry into a silica xerogel matrix is accomplished using sol-gel processing. Thermal degradation of this complex-silica xerogel composite under solely reducing conditions affords a nanocomposite material in which the nanocluster phase has the Pt1Sn1 composition of niggliite. The use of a PtSn (1:1) complex as a single-source molecular precursor for the formation of a Pt1Sn1-silica xerogel nanocomposite is demonstrated. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:252 / 256
页数:5
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