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- Title
ZIF-67/rGO/NiPc composite electrode material for high-performance asymmetric supercapacitors.
- Authors
Mu, Jianpeng; Guo, Zengcai; Zhao, Yuanxiang; Che, Hongwei; Yang, Hang; Zhang, Zhixiao; Zhang, Xiaoliang; Wang, Yanming; Mu, Jingbo
- Abstract
In this reported study, novel multiple dimensional ZIF-67/rGO/NiPc composite materials were prepared for supercapacitors. The electrochemical test showed that the ZIF-67/rGO/NiPc electrode achieved a remarkable specific capacitance of 860 F g−1 at a current density of 1 A g−1, which was superior to that of the rGO/NiPc and ZIF-67/rGO electrodes. An asymmetric supercapacitor based on ZIF-67/rGO/NiPc//activated carbon exhibited a high specific capacitance of 200.67 F g−1 and an extraordinary energy density of 62.7 Wh kg−1 at a corresponding power density of 750 W kg−1. In addition, the device demonstrated 94.6% capacitance retention after 5000 cycles. The assembled asymmetric supercapacitors could easily powered a green light-emitting diode. This work revealed a promising research route for the rational construction of multiple dimensioned high-performance electrodes materials for use in new energy storage devices.
- Subjects
SUPERCAPACITOR electrodes; COMPOSITE materials; SUPERCAPACITORS; ENERGY density; ENERGY storage; POWER density; LIGHT emitting diodes
- Publication
Journal of Materials Science: Materials in Electronics, 2022, Vol 33, Issue 22, p17733
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-022-08636-5