脉冲电磁场辅助水热法制备MnCo_(2)S_(4)及其性能表征  

Preparation of MnCo_(2)S_(4) supercapacitor anode material by pulsed electromagnetic field-assisted hydrothermal method and its performance

作　　者：王在辉 仲为礼 冯国威 唐立丹[1] 赵作福[1] WANG Zaihui;ZHONG Weili;FENG Guowei;TANG Lidan;ZHAO Zuofu(School of Materials Science and Engineering,Liaoning University of Technology,Jinzhou Liaoning 121001,China)

机构地区：[1]辽宁工业大学材料科学与工程学院,辽宁锦州121001

出　　处：《电源技术》2025年第3期643-649,共7页Chinese Journal of Power Sources

基　　金：教育厅基础项目(JJL201915409)。

摘　　要：以泡沫镍为集流体,通过脉冲电磁场辅助的水热法,成功制备出MnCo_(2)S_(4)超级电容器阳极材料。通过调整脉冲电磁场处理时间,实现对产物元素配比和晶体状态的调控。在400 V、3 Hz的脉冲电磁场处理120 s后,所制备试样的XRD图谱峰位向高角度偏移,同时半峰宽变小,产物结晶性提高,有利于电化学性能的提高。该材料在1A/g的电流密度下表现出1033.2 F/g的比电容,相对未加脉冲试样提高129.8%。以经过脉冲磁场影响后制备的MnCo_(2)S_(4)材料作为阳极,活性碳作为阴极,成功组装了混合型超级电容器,在1A/g的电流密度下,其比电容达到了76.2 F/g,相较于未加脉冲试样所制备的混合型超级电容器提高了170.2%。MnCo_(2)S_(4) supercapacitor anode material was successfully prepared by pulsed electromagnetic field-assisted hydrothermal method using nickel foam as current collector.By adjusting the treatment time of pulsed electromagnetic field,the adjustment of element ratio and crystal state of products was realized.After treatment with pulsed electromagnetic field of 400 V,3 Hz for 120 s,the XRD peaks shifted to higher angles and the half-peak width decreased,which improved the crystallinity of the products and was beneficial to the improvement of electrochemical properties.The material exhibits a specific capacitance of 1033.2 F/g at a current density of 1 A/g,which is 129.8%higher than that of the unpulsed sample.MnCo_(2)S_(4) as anode and activated carbon as cathode were used to assemble hybrid supercapacitor successfully.The specific capacitance of the hybrid supercapacitor reached 76.2 F/g at 1 A/g current density,which was 170.2%higher than that of the hybrid supercapacitor without pulse.

关 键 词：水热法 脉冲电磁场 MnCo_(2)S_(4) 超级电容器 

分 类 号：TM53[电气工程—电器]