期刊
ELECTROCHIMICA ACTA
卷 278, 期 -, 页码 114-123出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.05.024
关键词
Zn doped Ni-MOF; Microwave-assisted synthesis; Supercapacitor; Electrode material
资金
- Key Program of National Natural Science Foundation of China [5163210]
- foundation of the State Key Lab of Advanced Technology for Material Synthesis and Processing (Wuhan University of Technology) [2016-KF-02]
A Zn-doped Ni-based metal - organic framework (Ni-MOF) material with honeycomblike hierarchical spherical structure is synthesized by a microwave-assisted method using HCl as the modulator for the first time. By adjusting the amount of the Zn ions doped, an optimal Zn doped Ni-MOF electrode material is obtained, which possesses a superior electrochemical performance: specific capacity of 237.4mA h g(-1) and 122.3 mA h g(-1) at 1 A/g and 20 A/g, respectively. This is one of the highest performances reported so far for MOFs. The excellent electrochemical properties are ascribed to the unique crystal structure and special morphology of the Zn-doped Ni-MOF material. This work shows that the microwave-assisted synthesis is a rapid and efficient method for preparation of Ni-MOF supercapacitor electrode material. (C) 2018 Elsevier Ltd. All rights reserved.
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