MoxW1- xO3·0.33H2O solid solutions with tunable band gaps

Zhou, Liang, Zhu, Jie, Yu, Meihua, Huang, Xiaodan, Li, Zhen, Wang, Yunhua and Yu, Chengzhong (2010) MoxW1- xO3·0.33H2O solid solutions with tunable band gaps. The Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter, 114 49: 20947-20954. doi:10.1021/jp104644e


Author Zhou, Liang
Zhu, Jie
Yu, Meihua
Huang, Xiaodan
Li, Zhen
Wang, Yunhua
Yu, Chengzhong
Title MoxW1- xO3·0.33H2O solid solutions with tunable band gaps
Formatted title
MoxW1- xO3·0.33H2O solid solutions with tunable band gaps
Journal name The Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter   Check publisher's open access policy
ISSN 1932-7447
1932-7455
Publication date 2010-12-16
Sub-type Article (original research)
DOI 10.1021/jp104644e
Volume 114
Issue 49
Start page 20947
End page 20954
Total pages 8
Place of publication Washington, DC, United States
Publisher American Chemical Society
Collection year 2011
Language eng
Formatted abstract
A series of MoxW1−xO3·0.33H2O (x = 0, 0.25, 0.50, 0.75) micro/nanostructures and α-MoO3 nanobelts have been prepared by a facile hydrothermal treatment method starting from aqueous peroxo-polytungstic acid and peroxo-molybdic acid solutions. The WO3·0.33H2O lattice can be substituted with up to 75% Mo without structural alterations of the orthorhombic host structure. With the increase of the Mo content (x) from 0 to 0.75, the band gap of the as-prepared MoxW1−xO3·0.33H2O micro/nanostructures is narrowed from 3.25 to 2.77 eV. The increased M5+ (M = Mo and W) fraction and thus enhanced intervalency-transition are responsible for the narrowing of the band gap.
Copyright © 2010 American Chemical Society
Keyword Band gaps
Host structure
Hydrothermal treatments
Micro/nanostructures
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Sun, 26 Dec 2010, 10:06:48 EST