Loading…
Tungsten oxide by non-hydrolytic sol-gel: effect of molecular precursor on morphology, phase and photocatalytic performance
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 °C transforms W( vi ) and W( iv ) chloride precursors into WO x materials of cube or rod-like morphology respectively....
Saved in:
Published in: | New journal of chemistry 2016-01, Vol.4 (1), p.217-222 |
---|---|
Main Authors: | , , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | 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 °C transforms W(
vi
) and W(
iv
) chloride precursors into WO
x
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 WO
x
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.
The synthesis, characterisation and photocatalytic water splitting activity of blue tungsten oxide materials prepared from W(
vi
) and W(
iv
) precursors is reported. |
---|---|
ISSN: | 1144-0546 1369-9261 |
DOI: | 10.1039/c5nj01973g |