期刊
ELECTROCHIMICA ACTA
卷 144, 期 -, 页码 16-21出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.08.040
关键词
Hierarchical; Hexagonal Plates; Chemical conversion; Porous; Supercapacitors
资金
- National Natural of Science Foundation of China [21371101]
- 111 Project [B12015]
- MOE Innovation Team of China [IRT13022]
- Nankai University
Design: and prepare electrode material with porous structure is an effective method to enhance the electrochemical performance in supercapacitors. In this work, we developed hierarchical porous NiCo2S4 hexagonal plates via hydrothermal method by controlling sulfidation process. Measurements, such as XRD and SEM, are used to investigate the morphological and structural evolution of the hierarchical porous NiCO2S4 hexagonal plates. With advantages of high electronic conductivity, the interconnected nanometer-sized subunits of the material and the existence of porous, which cause shorter distance for transportation of electrolyte ion, excellent electrochemical performances exhibit with a high specific capacitance of 852.5 F g(-1) after 5000 cycles at a current density of 10 A g(-1). The outstanding properties indicate hierarchical porous NiCO2S4 hexagonal plates are promising future electrode materials for supercapacitors. (C) 2014 Elsevier Ltd. All rights reserved.
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