期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 18, 页码 15632-15637出版社
AMER CHEMICAL SOC
DOI: 10.1021/am5044449
关键词
biomorphic; energy storage and conversion; mesoporous; pseudocapacitive performance
资金
- National Natural Science Foundation of China [21176051, 61166008]
- Guangxi Natural Science Foundation [2012GXNSFFA060002, 2013GXNSFAA019294, 2013GXNSFBA019234]
- Department of Education of Jiangxi Province in China [GJJ14787]
- Guangxi Key Laboratory of Information Materials at Guilin University of Electronic Technology in China [1110908-02-K, 1110908-05-K]
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing at Wuhan University of Technology in China [2012-KF-7]
- Guangxi Experiment Center of Information Science at Guilin University of Electronic Technology in China [20130322]
A novel meosoporous tubular Co3O4 has been fabricated by a simple and cost-effective biomorphic synthesis route, which consists of infiltration of cotton fiber with cobalt nitrate solution and postcalcination at 673 K for 1 h. Its electrochemical performance as a supercapacitor electrode material is investigated by means of cyclic voltammetry and chronopotentiometry tests. Compared with bulk Co3O4 prepared without using cotton template, biomorphic Co3O4 displays 2.8 fold enhancement of pseudocapacitive performance because of the unique tubular morphology, relative high specific surface area (3 and 0.8 m(2)/g for biomorphic Co3O4 and bulk Co3O4, respectively), and mesoporous nature.
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