Teng Changqing, Gao Xuehui, Zhang Ning, Jia Yu, Li Xiaoyu, Shi Zhengyu, Wu Zongxiao, Zhi Mingjia, Hong Zhanglian
State Key Laboratory of Silicon Material, School of Materials Science and Engineering, Zhejiang University 38 Zheda Road Hangzhou 310027 China
RSC Adv. 2018 Sep 24;8(57):32979-32984. doi: 10.1039/c8ra05912h. eCollection 2018 Sep 18.
This work reports the synthesis of coaxial carbon@NiMoO nanofibers for supercapacitor electrode applications. Thin NiMoO nanosheets are uniformly coated on the conductive electrospun carbon nanofibers by a microwave assisted hydrothermal method to form a hierarchical structure, which increases the porosity as well as the conductivity of the electrode. The thickness of the NiMoO can be easily adjusted by varying the precursor concentrations. The high specific surface area (over 280 m g) and conductive carbon nanofiber backbone increase the utilization of the active pseudocapacitive NiMoO phase, resulting a high specific capacitance of 1840 F g.
这项工作报道了用于超级电容器电极应用的同轴碳@NiMoO纳米纤维的合成。通过微波辅助水热法将薄的NiMoO纳米片均匀地包覆在导电的电纺碳纳米纤维上，形成分级结构，这增加了电极的孔隙率以及导电性。通过改变前驱体浓度可以轻松调节NiMoO的厚度。高比表面积（超过280 m²/g）和导电的碳纳米纤维骨架提高了活性赝电容NiMoO相的利用率，从而产生了1840 F/g的高比电容。
