偏钒酸根掺杂的NiCo-LDH电极的制备及性能研究
收稿日期: 2022-07-01
网络出版日期: 2023-05-15
基金资助
国家自然科学基金项目(22065003);广西大学“大学生创新创业训练计划”资助项目(202110593026)
Study on preparation and properties of vanadate doped NiCo-LDH electrode
Received date: 2022-07-01
Online published: 2023-05-15
许雪棠 , 王煦凯 , 张申鹤 , 黄美香 , 农舒柳 , 许诺 . 偏钒酸根掺杂的NiCo-LDH电极的制备及性能研究[J]. 无机盐工业, 2023 , 55(5) : 52 -58 . DOI: 10.19964/j.issn.1006-4990.2022-0398
Supercapacitor is one of the hot spots in the research and development of chemical energy storage devices in recent years，and electrode materials play a decisive role in its performance.In order to synthesize NiCo based two-dimensional layered double hydroxide（LDH） electrode materials with excellent supercapacitor performance，NiCo-LDH nanoarrays were first prepared on the surface of Ni foam by one-step hydrothermal method.Then，in a water-glycol system，VO3- doped NiCo-LDH nanoarrays were prepared through a secondary solvothermal reaction.Finally，electrode materials with excellent performance were obtained through alkali conversion.Using this electrode and activated carbon to assemble an all solid-state asymmetric supercapacitor device，the device showed an energy density of 0.416 mW·h/cm2 at a voltage of 0 to 1.8 V and a power density of 9 mW/cm2，and it had good cycle stability.
Key words： Ni foam; NiCo-LDH; vanadate; nanoarray; supercapacitor
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