期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 722, 期 -, 页码 54-59出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.06.097
关键词
Energy storage; Supercapacitor; Graphene; Hydrothermal method; Electrochemical properties; Cerium oxide
资金
- National Natural Science Foundation of China [51478285, 21407111, 21576175]
- Natural Science Foundation of Jiangsu Province [BK20140280, BK20151198]
- Collegiate Natural Science Fund of Jiangsu Province [14KJA430004, 16KJA430008]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment
- Excellent Innovation Team in Science and Technology of Education Department of Jiangsu Province
- Jiangsu Key Laboratory for Environment Functional Materials [SJHG1304, SJHG1310, SJHG1404]
Manganese oxide and cerium dioxide (Mn3O4/CeO2) nanorods grown on the surface of graphene nanosheet were successfully obtained by hydrothermal treatment. The supercapacitor performance of Mn3O4/CeO2 nanorods nanostructured electrodes was greatly improved. The composite shows the excellent specific capacitance as high as 209.2 F g(-1) in 1 M Na2SO4 electrolyte and the good long term cycle stability. The prominent electrochemical properties could be attributed to the enhanced conductivities and the improved accessible area for ions in electrolytes. The present study provides a facile way to design a high-performance Mn3O4/CeO2-graphene based supercapacitor electrode and the conception is extendable to other pseudocapacitive electrodes. (C) 2017 Elsevier B.V. All rights reserved.
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