期刊
MATERIALS LETTERS
卷 164, 期 -, 页码 421-424出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.11.054
关键词
Electrode material; X-ray techniques; Microstructure; Porous materials; Pseudocapacitors
资金
- National Natural Science Foundation of China [11372267, 11402086]
- National High Technology Research and Development Program of China (863 Program) [2013AA032502]
A facile and low-cost method is proposed to design CoCl2 center dot 6H(2)O/CoOOH, an excellent electrode material for pseudocapacitors. The microstructures were investigated by X-ray techniques and transmission electron microscopy. It is shown that the obtained sheet-like CoOOH film can fix the inner Co2+ ions and realize a higher utilization of the active material. The high porous materials CoOOH/Co(OH)(2) are favorable to charge transfer and ion diffusion, leading to a superior capacitance of 3562 F g(-1) at 1 A g(-1). (C) 2015 Elsevier B.V. All rights reserved.
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