期刊
CARBON
卷 125, 期 -, 页码 419-428出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2017.09.087
关键词
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资金
- 973 Program [2014CB848900, 2017YFA0303500]
- NSFC [U1532112, 11574280, 11605201]
- Anhui Provincial Natural Science Foundation [1708085QB27]
- CAS [QYZDB-SSW-SLH018]
- CAS Iterdisciplinary Innovation Team, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University
Developing flexible electrode is essential for new generation wearable electronics and energy devices. Combining with membrane-assisted vacuum filtration, highly flexible and stable hybridized electrodes, containing of S-doped graphene, carbon nano-onion (OLC) and Ni3S2 composite (GCNi(3)S(2)) are obtained. X-ray absorption characterizations reveal the transfer of electrons from C to Ni atoms due to the tight interface between Ni3S2 and GO/OLC, indicating the synergistic effect on fast redox reaction and ultra-short ion diffusion pathway among the hybrid electrodes. The assembled flexible symmetrical all-solid-state supercapacitor exhibits high volumetric capacitance of 55.3 F cm(-3), along with an outstanding energy density of 3.63 Wh cm(-3) and excellent stability of 5000 cycles with 97.2% capacitance remaining. The bending tests further confirm outstanding flexible performance in the capacitor device. Moreover, the assembled micro supercapacitor with GCNi(3)S(2) electrode indicates the advantage of this membrane-assisted assembled strategy for easily realizing various flexible films as multitype supercapacitor's electrode which is otherwise difficult for powder-like materials. (C) 2017 Elsevier Ltd. All rights reserved.
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