MnCo2O4/g-C3N4 composite material preparation and its capacitance performance

被引：4
作者：
Wang, Qing [1 ,2 ]
Li, Yirong [1 ]
Gao, Haoran [1 ]
Dai, Jianfeng [1 ,2 ]
Li, Weixue [1 ,2 ]
机构：
[1] Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
[2] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2021年 / 35卷 / 31期
关键词：
Supercapacitor; MnCo2O4; hydrothermal synthesis; electrochemistry; energy storage and conversion; ELECTRODE MATERIALS; CARBON; FABRICATION; ENERGY; SUPERCAPACITOR;
D O I：
10.1142/S0217979221503197
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
MnCo2O4/g-C3N4 composite material was synthesized by the hydrothermal method, compared with MnCo2O4 without g-C3N4, it has excellent electrochemical performance. The composite material can reach a specific capacitance of 350 Fg(-1) at 1 Ag-1. The capacity retention rate is 96% after 1000 cycles at the rate of 2 Ag-1. Experiments show that g-C3N4 can effectively disperse and improve the conductivity of urchin-like MnCo2O4, and the composite of sufficient g-C3N4 can give full play to the performance of urchin-like MnCo2O4, provide faster electronic transport channels, effectively improve the ion migration rate, and make urchin-like MnCo2O4 increase the rate performance under high charge and discharge rates.
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页数：9
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