Cover Page March-2018-Advanced Materials Letters

Advanced Materials Letters

Volume 9, Issue 3, Pages 188-191, March 2018
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Three-dimensional Bi2WO6/graphene aerogel electrode for high-performance supercapacitor

Xun Xu, Fangwang Ming, Jinqing Hong, Zhoucheng Wang*

Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen, 361000, China

Adv. Mater. Lett., 2018, 9 (3), pp 188-191

DOI: 10.5185/amlett.2018.1719

Publication Date (Web): May 16, 2018

E-mail: zcwang@xmu.edu.cn

Abstract

Graphene-based aerogels with porous structure and three-dimensional (3D) network have attracted plentiful interests recently because they could exhibit as an excellent matrix for various kinds of nanoparticles, thus providing a potential prospect in a variety of applications. In this report, 3D composite aerogel with poriferous structure assembly of bismuth tungstate sheets and graphene nanosheets has been prepared by a simple hydrothermal process. The 3D multihole structure of the hybrid aerogel could not only provide enormous surface area, but also facilitate electron transfer and ion transmission which could decrease the electrode internal resistance and consequently improve the capacitive property. As a result, the Bi2WO6/graphene hybrid aerogel achieves a large specific capacitance of 714 F g-1 at the current density of 4 A g-1. The hybrid aerogel could provide a new method for developing high-performance energy storage materials.

Keywords

Graphene, hydrothermal synthesis, aerogel, porous materials, supercapacitor.

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