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Bi-functional Mo-doped WO3 nanowire array electrochromism-plus electrochemical energy storage
1State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Journal of Colloid and Interface Science
|December 17, 2015
Summary
Molybdenum-doped tungsten oxide (WO3) nanowires show enhanced electrochromic performance and energy storage capabilities. This development offers potential for advanced bi-functional electrochromic batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Metal doping tailors physicochemical properties of semiconducting metal oxides.
- Tungsten oxide (WO3) is a promising material for electrochromic applications.
Purpose of the Study:
- To fabricate Mo-doped WO3 nanowire arrays for improved electrochromic performance.
- To investigate the potential of these materials for electrochemical energy storage.
Main Methods:
- Sulfate-assisted hydrothermal synthesis of Mo-doped WO3 nanowire arrays.
- Characterization of electrochromic properties (switching speed, optical modulation, coloration efficiency).
- Evaluation of electrochemical energy storage capabilities.
Main Results:
- Mo-doped WO3 nanowires exhibited faster switching speeds (3.2s coloration, 2.6s bleaching) compared to pure WO3.
- Achieved significant optical modulation (up to 83.0% at 1600nm) and high coloration efficiency (123.5 cm(2)C(-1)).
- Demonstrated excellent cycling stability and bi-functional electrochromic energy storage.
Conclusions:
- Mo-doping effectively enhances the electrochromic properties of WO3 nanowires.
- The developed Mo-doped WO3 nanowire arrays are suitable for high-performance bi-functional electrochromic batteries.
