Covalent immobilization of a TiW5 polyoxometalate on derivatized silicon surfaces

被引:99
作者
Errington, RJ [1 ]
Petkar, SS [1 ]
Horrocks, BR [1 ]
Houlton, A [1 ]
Lie, LH [1 ]
Patole, SN [1 ]
机构
[1] Univ Newcastle Upon Tyne, Sch Nat Sci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
关键词
alkoxides; polyoxometalates; surface chemistry; titanium; tungsten;
D O I
10.1002/anie.200461065
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Covalent ties: The polyoxometalate (nBu4N)3[(MeO) TiW5O18] is easily anchored to alkanol-functionalized surfaces of porous and single-crystal silicon (see picture, polyhedra: polyoxometalate, dark blue: Si surface). Scanning tunneling microscopy reveals the growth of 35-50 nm diameter islands on functionalized Si(111), which suggests that the immobilized polyoxometalates act as nucleation sites for electrostatic aggregation. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:1254 / 1257
页数:4
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