MoS₂/C材料的水系铝离子超级电容器及其电化学性能

Water System Aluminum Ion Supercapacitors of MoS₂/C Materials and Their Electrochemical Properties

摘要: 本文采用水热法制备花状的MoS₂、对MoS₂进行碳化烧结制备MoS₂/C复合材料。本文讨论水系电解液中的铝离子浓度对MoS₂/C复合材料电化学性能的影响。结果表明，当电解液中的铝离子浓度较低时，MoS₂/C电极材料的比电容较高，等效串联电阻较小，电化学性能较好。1 mol/L的AlCl₃电解液在40 A/g的电流密度下，等效串联电阻为1.083 Ω，比电容达到189 F/g，表现出优良的电容性能。

Abstract: In this paper, MoS₂/C composite was prepared by hydrothermal method and carbonization sin-tering of MoS₂. The effect of aluminum ion concentration in electrolyte on the electrochemical properties of MoS₂/C composites was discussed. The results show that the electrochemical prop-erties perform better with smaller resistance in equivalent series and higher specific capacitance in MoS₂/C electrode material when the concentration of aluminum ion becomes lower in the elec-trolyte. Under the current density of 40 A/g, the equivalent series resistance of 1 mol/L AlCl₃ elec-trolyte is 1.083 Ω, and the specific capacitance reaches 189 F/g, which shows excellent capacitance performance.