丝网状镍钴硫金属化合物电化学性能研究

详细信息

Study on Electrochemical Performance of Wire Mesh Sulfur Nickel and Cobalt Metal Compounds

Institute of Chemical Engineering, Shaanxi National Defense Industrial Technical College, Xi'an 710300, China

摘要: 通过简单两步水热的方法在泡沫镍基底上成功制备出丝网状三维网络结构的NiCo₂S₄,研究了材料的电化学性能,结果表明,NiCo₂S₄@泡沫镍电极材料具有高的面积比电容,在电流密度为10 m A/cm²时,面积比电容可达到2.87 F/cm²;电流密度从10 m A/cm²增大到50 m A/cm²,电容保持率为60.9%;在负载量为6.21 mg/cm²时,在30 m A/cm²的高电流密度下充放电1 000次,电容保持率仍为67.3%。
- NiCo₂S₄ /
- 超级电容器 /
- 储能 /
- 电化学性能
Abstract: Wire mesh three-dimensional network structure of NiCo₂S₄ on nickel foam substrate was prepared by two steps hydrothermal method, and its electrochemical performances were investigated.Resultsshowed that NiCo₂S₄@the nickel foam had high area of specific capacitance, when the current density was 10 m A/cm², the area of specific capacitance was up to 2.87 F/cm²; when the current density increased from 10 m A/cm² to 50 m A/cm², capacitance retention still remained at 60. 9%, showing excellent ratio of performance, when the load was 6. 21 mg/cm² and the material was charged and discharged for 1 000 cycles at 30 m A/cm², the capacitance retention was 67. 3%.
- wire mesh /
- NiCo₂S₄ /
- super capacitor /
- energy storage