Tunable surface oxidation states in Si/SiO2 nanostructures prepared from Si/SiO2 mixtures and phenol hydroxylation activity

被引：9

作者：

Gole, JL ^{[1
]}

Shinall, BD

Iretskii, AV

White, MG

Carter, WB

Erickson, AS

机构：

[1] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Chem Engn, Atlanta, GA 30332 USA

[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[4] Reed Coll, Dept Phys, Portland, OR 97202 USA

[5] Reed Coll, Dept Chem, Portland, OR 97202 USA

来源：

CHEMPHYSCHEM | 2003年 / 4卷 / 09期

关键词：

heterogeneous catalysis; naonstructures; oxidation state; oxides; silica;

D O I：

10.1002/cphc.200300719

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：

Active spheres: Nearly monodisperse Si/SiO2 nanospheres (see graphic) with a tunable silicon-to-oxygen ratio have been synthesized and analyzed with respect to their average Si oxidation states. The metalloid oxides are synthesized in a two-step generalizable process in the absence of liquid solvents, which is an environmentally friendly method for preparation of an adsorbent and catalyst with an activity much higher than that of fumed silica in the phenol hydroxylation reaction.

引用

页码：1016 / 1021

页数：6