摘要
超级电容器具备高的功率密度、快速充放电速率及较长的循环稳定性,已成为重要的储能器件。本文以苯基次膦酸为有机配体,四水合乙酸钴为金属钴源,在水热条件下制备出了苯基膦酸钴材料。采用XRD、SEM及电化学分析等测试手段,对合成的苯基膦酸钴电极材料进行表征,实验结果显示在160℃水热条件下反应48h合成出的苯基膦酸钴材料展现出了最优的电化学性能,在电流密度为50mA·g^(-1)时,材料的比电容为91.1F·g^(-1),在1A·g^(-1)电流密度时,材料经过10,000次的循环稳定性测试,发现该电极的电容保持率仍然能达到90.0%。该结果表明苯基膦酸钴在超级电容器电极材料的应用中具有潜力。
Supercapacitors have emerged as crucial energy storage devices due to their high power density,rapid charge-discharge rates,and long-term cycling stability.In this study,cobalt phenylphosphonate material was synthesized via a hydrothermal method using phenylphosphonic acid as the organic ligand and cobalt acetate as the cobalt source.The prepared cobalt phenylphosphonate electrode material was characterized by XRD and SEM,and electrochemical workstation.The results demonstrate that the cobalt phenylphosphonate synthesized under hydrothermal conditions at 160℃ for 48 hours exhibits optimal electrochemical performance.At a current density of 50 mA·g^(-1),the specific capacitance reaches 91.1 F·g^(-1).After 10000 cycles of stability testing at a current density of 1 A·g^(-1).The electrode keeps a high capacitance retention rate of 90.0%.These findings indicate that cobalt phenylphosphonate holds promising potential as an electrode material for supercapacitor applications.
作者
王超男
张芮萌
冯雨倩
贾欣悦
袁瑞泽
Wang Chaonan;Zhang Ruimeng;Feng Yuqian;Jia Xinyue;Yuan Ruize(Department of Materials Science and Engineering,Shanxi Institute of Technology,Yangquan 045000,Shanxi)
出处
《福建冶金》
2025年第5期34-37,共4页
Fujian Metallurgy
基金
山西省高等学校科技创新项目(2022L594)。
关键词
苯基次膦酸
超级电容器
电化学性能
循环稳定性
phenylphosphonic acid
supercapacitor
electrochemical performance
cycling stability
