期刊
MATERIALS LETTERS
卷 145, 期 -, 页码 141-144出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.01.061
关键词
MnO2; 3D nanoporous graphene; Supercapacitor; Energy storage and conversion
资金
- National Natural Science Foundation of China [21301159]
- Program of Zhengzhou City for Science and Technology [20130775]
- Doctoral Funding from Zhengzhou University of Light Industry [2011BSJJ010]
Nanoporous 3D graphene was fabricated using NH2-SiO2 particles as a sacrificial template. For further capacitance boost, MnO2 was firstly deposited onto the nanoporous 3D graphene through the reaction between KMnO4 and graphene via the hydrothermal method. Owing to the synergistic effect between the unique nanoporous 3D graphene and the high specific capacitance of MnO2, the MnO2/nanoporous 3D graphene electrode demonstrated excellent electrochemical performance, including a high specific capacitance and an extended long cycle life. This work showed that the MnO2/nanoporous 3D graphene could present significant potential for energy storage applications. (C) 2015 Elsevier B.V. All rights reserved.
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