The Capacitive Behavior of Ni0.76Co0.24Ox Xerogels in KOH Solution-Reference-Cited by-同舟云学术

The Capacitive Behavior of Ni_0.76Co_0.24O_x Xerogels in KOH Solution

Published:2012-12 Issue: Volume:608-609 Page:1092-1096
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Cheng Jie¹,Tian Xin Jin²,Wen Yue Hua³,Xu Yan⁴,Liu Han Min⁵,Cao Gao Ping⁴,Yang Yu Sheng⁴

Affiliation:

1. Research Institute of Chemical Defense, Beijing

2. Sichuan Wankaifeng R.E. New Energy Technology Co., Ltd

3. Research Institute of Chemical Defence

4. Research Institute of Chemical Defense

5. Zhangjiakou Wind and Solar Power Energy Demonstration Station Co. LTD.

Abstract

Ni0.76Co0.24Ox xerogels were formed by the sol-gel method followed by heat-treatment in air. The structure and properties of these materials were characterized by using X-ray diffraction, TEM and N2 (77K) adsorption. Electrodes with the xerogels were activated by cyclic voltammetry (CV) and their capacitive performance was evaluated by galvanostatic technique in 7 mol/L KOH solutions. A maximum specific capacitance of 904 F/g was obtained by constant current discharge with a current density of 2.0 mA/cm2 for the Ni0.76Co0.24Ox xerogels heat-treated at 250°C. High performance obtained indicates that these materials are promising electrode materials for supercapacitors.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.608-609.1092.pdf

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