期刊
CHEMISTRYSELECT
卷 2, 期 4, 页码 1497-1503出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201601700
关键词
electrochemistry; energy storage; Ce-Ni-Mn-Co; oxide microspheres; Mesoporous
资金
- Scientific Research and Cultivation Fund Project of Anyang Normal University [AYNU-KPA05]
- the National Natural Science Foundation of China [U1404203, 21576248]
- Plan for Scientific Innovation Talent of Henan Province
- Program for Innovative Research Team (in Science and Technology) in University of Henan Province [16IRTSTHN003]
- Science & Technology Foundation of Henan Province [162300410003, 14B150001]
Mesoporous quaternary Ce-Ni-Mn-Co oxides microspheres have been successfully prepared by a solvothermal approach and subsequent heat treatment in air. As-prepared mesoporous quaternary Ce-Ni-Mn-Co oxides microspheres show a large specific surface areas of 146.1 m(2) g(- 1). When evaluated as an electrode of supercapacitors, the Ce-Ni-Mn-Co oxides microspheres presents an outstanding specific capacitance of 1840.6 F g(- 1) at 1.0 A g(- 1). Furthermore, a flexible solid-state asymmetric supercapacitor based on Ce-Ni-Mn-Co oxides was also as- sembled, which possessed a highenergy density of 0.43 mW h cm(- 3) and good electrochemical stability for 5000 cycles chargedischarge measurement. Encouragingly, the flexible solid-state electrochemical energy storage device shows well mechanical flexibility under various bending angles. The excellent electrochemical performances indicate the mesoporous quaternary Ce-Ni-Mn-Co oxides microspheres are promising electrode materials in the energy storage.
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