Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 465, Issue -, Pages 112-120Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2015.11.068
Keywords
Tungsten trioxide; Nanowire; Doping; Electrochromism; Electrochemical energy storage
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Funding
- Program for Innovative Research Team in University of Ministry of Education of China [IRT13037]
- Key Science and Technology Innovation Team of Zhejiang Province [2010R50013]
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Metal-doping is considered to be an effective way for construction of advanced semiconducting metal oxides with tailored physicochemical properties. Herein, Mo-doped WO3 nanowire arrays are rationally fabricated by a sulfate-assisted hydrothermal method. Compared to the pure WO3, the optimized Mo-doped WO3 nanowire arrays exhibit improved electrochromic properties with fast switching speed (3.2 s and 2.6 s for coloration and bleaching, respectively), significant optical modulation (56.7% at 750 nm, 83.0% at 1600 nm and 48.5% at 10 mu m), high coloration efficiency (123.5 cm(2) C-1) and excellent cycling stability. In addition, as a proof of concept, the Mo-doped WO3 nanowire arrays are demonstrated with electrochemical energy storage monitored by the electrochromism. This electrode design protocol can provide an alternative way for developing high-performance active materials for bi-functional electrochromic batteries. (C) 2015 Elsevier Inc. All rights reserved.
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