木耳碳基硫化钴复合材料的制备及电化学性能研究
收稿日期: 2022-03-16
网络出版日期: 2022-12-19
基金资助
贵州省高层次人才培养计划—“百”层次人才(黔科合平台人才[2016]5658)
Study on preparation and electrochemical properties of agaric carbon-based cobalt sulfide composites
Received date: 2022-03-16
Online published: 2022-12-19
以木耳制备的均匀溶液为碳源，加入ZIF-67前驱体，通过水热合成和高温煅烧制备氮硫共掺杂的木耳碳与硫化钴多孔片层复合材料（CoS/NSAC）。实验结果表明，该材料具有大的比表面积和高导电性，电化学性能良好。CoS/NSAC在电流密度为0.5 A/g时比容量达到484.8 F/g，在20 A/g高电流密度下循环5 000次容量保持率为78.8%。用该材料组装的非对称超级电容器具有优异的电化学性能，在0.6 A/g电流密度下比容量为154 F/g。当功率密度为362.3 W/kg时，能量密度为7.4 W?h/kg，经过1 800次循环容量保持率为81.95%。
易金亮 , 杨敏 , 宋方祥 , 陈前林 . 木耳碳基硫化钴复合材料的制备及电化学性能研究[J]. 无机盐工业, 2022 , 54(12) : 60 -67 . DOI: 10.19964/j.issn.1006-4990.2022-0121
The homogeneous solution prepared from agaric was used as carbon sources，and porous sheet composites of N，S co-doped agaric carbon and CoS（CoS/NSAC） were prepared by hydrothermal synthesis and high temperature calcination after adding ZIF-67 precursor.The results showed that the materials had large specific surface area and high electrical conductivity with good electrochemical properties.The CoS/NSAC achieved a specific capacity of 484.8 F/gat current density of 0.5 A/g.Its capacity retention rate was 78.8% after 5 000 cycles at a high current density of 20 A/g.The asymmetric supercapacitor assembled with this materials had excellent electrochemical performance with a specific capacity of 154 F/g at current density of 0.6 A/g.When the power density was 362.3 W/kg，the energy density was 7.4 W·h/kg and the capacity retention rate was 81.95% after 1 800 cycles.
Key words： biomass agaric; cobalt sulfide; N，S co-doped; composites; supercapacitor
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