Tungsten oxide by non-hydrolytic sol-gel: effect of molecular precursor on morphology, phase and photocatalytic performance

被引：18

作者：

Oakton, Emma ^{[1
]}

Siddiqi, Georges ^{[1
]}

Fedorov, Alexey ^{[1
]}

Coperet, Christophe ^{[1
]}

机构：

[1] ETH, Dept Chem & Appl Biosci, CH-8093 Zurich, Switzerland

来源：

NEW JOURNAL OF CHEMISTRY | 2016年 / 40卷 / 01期

关键词：

LIGHT-DRIVEN PHOTOCATALYSTS; WATER OXIDATION; O-2; EVOLUTION; GAS SENSORS; ROUTES; WO3; CATALYSTS; NANOSTRUCTURES; DECOMPOSITION; NANOWIRES;

D O I：

10.1039/c5nj01973g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A practical gram-scale synthesis of high surface area blue tungsten oxide via a non-hydrolytic sol-gel method is reported. The use of diisopropyl ether in 1,2-dichloroethane at 180 degrees C transforms W(VI) and W(IV) chloride precursors into WOx materials of cube or rod-like morphology respectively. These oxides are characterised by a range of methods including TEM, N-2 adsorption-desorption, XRD, XAS, EPR, UV-Vis DRS, elemental analysis and conductivity measurements. Treatment of WOx under N-2 causes a decrease in surface area and increase in electrical conductivity. Prepared materials are investigated as catalysts for oxygen evolution by photocatalytic water splitting.

引用

页码：217 / 222

页数：6

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