新型炭材料（中英文）2024，Vol.39Issue(3)：506-514,9.DOI:10.1016/S1872-5805(24)60847-4
硼氮共掺杂海藻酸钠基多孔炭及其快速高效储锌
Boron and nitrogen co-doped sodium alginate-based porous carbons for durable and fast Zn-ion hybrid capacitors
摘要
Abstract
In recent years,zinc-ion hybrid capacitors(ZIHCs)have attracted increasing attention due to their environmental friendliness and excellent electrochemical properties.However,their performance is mainly limited by the electrochemical perform-ance of the cathode,so it is necessary to develop an advanced cathode material.N,B co-doped sodium alginate-based porous carbon(NBSPC)was prepared by one-step co-carbonization using sodium alginate as the matrix and NH4B5O8 as the N and B source.This N,B co-doping strategy improves the pore structure of the carbon materials and increases the number of surface functional groups,greatly improving the capacitive behavior of the raw materials and thus improving their electrochemical performance.When used as the cathode in ZIHCs,the NBSPC had an excellent rate performance(85.4 mA h g-1 even at ultra-high current density of 40 A g-1)and good cycling stability(15 000 cycles at 20 A g-1 with a capacity retention rate of 94.5%).关键词
海藻酸钠衍生多孔炭/氮/硼共掺杂/一步水热活化/锌离子电容器Key words
Sodium alginate-based porous carbon/N,B co-doped/One step hydrothermal activation/Zinc-ion hybrid capacitors分类
化学化工引用本文复制引用
卢亚平,王红星,刘澜涛,庞伟伟,陈晓红..硼氮共掺杂海藻酸钠基多孔炭及其快速高效储锌[J].新型炭材料（中英文）,2024,39(3):506-514,9.基金项目
This work was supported by the National Natur-al Science Foundation of China(52372039). 国家自然科学基金(52372039). （52372039）
