期刊
JOURNAL OF ENERGY STORAGE
卷 56, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.est.2022.105986
关键词
Reduced graphene oxide; MXene; Supercapacitor; Nickel-cobalt phosphate; Fe2O3
资金
- National Natural Science Foundation of China
- Zhejiang Provincial Natural Sci- ence Foundation
- [51873194]
- [LY18E030006]
In this study, reduced graphene oxide/MXene-based composite electrodes combined with Fe2O3 and NiCo-P as the negative and positive electrodes were prepared and their performance parameters, such as specific capacitance and energy density, were tested, demonstrating the potential application of composite electrode materials for supercapacitors.
In this study, reduced graphene oxide/MXene-based composite electrodes combined with Fe2O3 and NiCo-P as the negative and positive electrodes are prepared by a facile in-situ solvothermal route. Both rGO/MXene@Fe2O3 and rGO/MXene@NiCo-P have an interconnected nanostructure with the specific surface areas at 17.1 and 131.9 m(2).g(-1). The specific capacitance of the as-prepared rGO/MXene@Fe2O3 and rGO/MXene@NiCo-P composite electrodes are 248.13 and 214.66 mAh.g(-1) under current density at 1 A.g(-1). An asymmetric supercapacitor (ASC) is further assembled using rGO/MXene@Fe2O3 and rGO/MXene@NiCo-P as the negative and positive electrodes, respectively. The maximum energy density of the assembled ASC is 29.46 Wh.kg(-1) at a power density of 700.34 W.kg(-1). After 10,000 cycles, 70.87 % of the capacity can be retained. These results demonstrate the potential application of composite electrode materials for supercapacitors.
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