Jiang Hui, Yang Kang, Ye Pingwei, Huang Qiang, Wang Lingyun, Li Sumin
School of Materials Science and Engineering, Jiangsu University Zhenjiang 212013 China
Research Institute of Chemical Defense Beijing 100191 China.
RSC Adv. 2018 Nov 7;8(65):37550-37556. doi: 10.1039/c8ra07477a. eCollection 2018 Nov 1.
The NiCoO nanowires and reduced graphene oxide (rGO) hybrid nanostructure has been constructed on carbon fibers (NiCoO/rGO/CF) a hydrothermal method. The effects of graphene oxide (GO) concentration on the structure and performance of the NiCoO/rGO/CF were investigated in detail to obtain the optimized electrode. When the GO concentration was 0.4 mg ml, the rGO/NiCoO/CF composite exhibited a maximum specific capacitance of 931.7 F g at 1 A g, while that of NiCoO/CF was 704.9 F g. Furthermore, the NiCoO/rGO/CF//AC asymmetric supercapacitor with a maximum specific capacitance of 61.2 F g at 1 A g was fabricated, which delivered a maximum energy density (24.6 W h kg) and a maximum power density (8477.7 W kg). Results suggested that the NiCoO/rGO/CF composite would be a desirable electrode for flexible supercapacitors.
通过水热法在碳纤维（NiCoO/rGO/CF）上构建了NiCoO纳米线与还原氧化石墨烯（rGO）的混合纳米结构。详细研究了氧化石墨烯（GO）浓度对NiCoO/rGO/CF结构和性能的影响，以获得优化电极。当GO浓度为0.4 mg/ml时，rGO/NiCoO/CF复合材料在1 A/g下表现出931.7 F/g的最大比电容，而NiCoO/CF的最大比电容为704.9 F/g。此外，制备了在1 A/g下最大比电容为61.2 F/g的NiCoO/rGO/CF//AC不对称超级电容器，其最大能量密度为24.6 W h/kg，最大功率密度为8477.7 W/kg。结果表明，NiCoO/rGO/CF复合材料将是柔性超级电容器的理想电极。
