MnO2@MoS2/RGO hollow structure as high-performance supercapacitor electrode materials

被引:35
作者
Ran, Jing [1 ]
Liu, Yafei [1 ]
Yang, Tiantian [1 ]
Feng, Huixia [1 ]
Zhan, Huiying [2 ]
Shi, Haixiong [2 ]
机构
[1] Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China
[2] Lanzhou Univ Arts & Sci, Sch Engn, Lanzhou 730010, Peoples R China
基金
中国国家自然科学基金;
关键词
Hollow structure; Graphene; Manganese dioxide; Molybdenum disulfide; Supercapacitor; Electrode material; REDUCED GRAPHENE OXIDE; ELECTROCHEMICAL PROPERTIES; POLY(PHENYL ACRYLATE); MNO2; NANOPARTICLES; CARBON; POLY(STYRENE-CO-ACRYLONITRILE); NANOCOMPOSITES; MISCIBILITY; BLENDS; MOS2;
D O I
10.1016/j.est.2023.107216
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Reduced graphene (RGO) has garnered substantial attention due to its specific surface area and electrical con-ductivity as a material for cathodes. However, RGO cannot meet the demand for new energy because of its low capacitance, which has the problem of RGO lamellar agglomeration. Herein, MnO2@MoS2/RGO electrode ma-terial composite is prepared by using MoS2/RGO as the conductive substrate and MnO2 as the active substance particles. Electrochemical performance tests showed that the MnO2@MoS2/RGO composite electrode has excellent specific capacitance and stable cyclic stability. The prepared nanocomposite material has a capacitance of 743 F g-1 of 1 A g-1, which is greater than that of MnO2 (102 F g-1). Specific energy and specific power were 31.22 Whkg- 1 and 362.51 Wkg- 1 of the MnO2@MoS2/RGO material. The cycle stability reaches 88.5 % after 5000 cycles. Due to its excellent electrochemical properties, it has become a hot subject in the research of materials for supercapacitor electrodes.
引用
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页数:11
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