Nanoforest of 3C-SiC/graphene by laser chemical vapor deposition with high electrochemical performance

Sun, Qingyun and Tu, Rong and Xu, Qingfang and Zhang, Chitengfei and Li, Jun and Ohmori, Hitoshi and Kosinova, Marina and Basu, Bikramjit and Yan, Jiasheng and Li, Shusen and Goto, Takashi and Zhang, Lianmeng and Zhang, Song (2019) Nanoforest of 3C-SiC/graphene by laser chemical vapor deposition with high electrochemical performance. In: JOURNAL OF POWER SOURCES, 444 .

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Abstract

Nanoforests of 3C-SiC/graphene films are prepared by laser chemical vapor deposition (LCVD). The effectiveness of nanoforest-like 3C-SiC/graphene film as electrode materials for supercapacitors has been investigated by cyclic voltammetry and galvanostatic charge-discharge tests in 0.5 M H2SO4 solution. The specific capacitance is 8.533 mF/cm(2) at a current density of 20 mu A/cm(2), which is 15 times higher than of previous reports of composited 3C-SiC/graphene films. The electrode exhibits good rate capability and cycling stability with 90.5% capacitance retention after 10000 cycles. The nanoforest-like 3C-SiC/graphene thick film shows a 3D porous structure with exposed graphene conductive network contributing to the greatly enhanced electrochemical performance in an environmentally aqueous electrolyte. These nanoforest-like 3C-SiC/graphene films can be promising for electrochemical energy storage applications.

Item Type:	Journal Article
Publication:	JOURNAL OF POWER SOURCES
Publisher:	ELSEVIER
Additional Information:	Copyright of this article belongs to ELSEVIER
Keywords:	Nanoforest; 3C-SiC films; Graphene; LCVD; Electrochemical performance
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Biosystems Science and Engineering
Date Deposited:	30 Dec 2019 11:23
Last Modified:	30 Dec 2019 11:23
URI:	http://eprints.iisc.ac.in/id/eprint/64242

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