Tungsten oxide nanowires grown on graphene oxide sheets as high-performance electrochromic material

Electrochromic mechanism of tungsten oxide nanowires-reduced graphene oxide composite. •A novel inorganic-nano-carbon hybrid composite was prepared.•The hybrid composite has sandwich-like structure.•The hybrid composite exhibited high-quality electrohcromic performance. In this work, we report the s...

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Bibliographic Details
Published in:Electrochimica acta 2014-05, Vol.129, p.40-46
Main Authors: Chang, Xueting, Sun, Shibin, Dong, Lihua, Hu, Xiong, Yin, Yansheng
Format: Article
Language:English
Subjects:
Electrochromic
Electrochromism
Graphene
Graphene oxide
Hybrid composite
Nanostructure
Nanowires
Nucleation
Oxides
Solvothermal
Tungsten
Tungsten oxide
Tungsten oxides
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Summary:Electrochromic mechanism of tungsten oxide nanowires-reduced graphene oxide composite. •A novel inorganic-nano-carbon hybrid composite was prepared.•The hybrid composite has sandwich-like structure.•The hybrid composite exhibited high-quality electrohcromic performance. In this work, we report the synthesis of a novel hybrid electrochromic composite through nucleation and growth of ultrathin tungsten oxide nanowires on graphene oxide sheets using a facile solvothermal route. The competition between the growth of tungsten oxide nanowires and the reduction of graphene oxide sheets leads to the formation of sandwich-structured tungsten oxide-reduced graphene oxide composite. Due to the strongly coupled effect between the ultrathin tungsten oxide nanowires and the reduced graphene oxide nanosheets, the novel electrochromic composite exhibited high-quality electrochromic performance with fast color-switching speed, good cyclic stability, and high coloration efficiency. The present tungsten oxide-reduced graphene oxide composite represents a new approach to prepare other inorganic-reduced graphene oxide hybrid materials for electrochemical applications.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2014.02.065