新型炭材料（中英文）2023，Vol.38Issue(5)：898-912,15.DOI:10.1016/S1872-5805(23)60760-7
基于二维多孔有机聚合物制备二维功能化富炭材料的普适性策略及双炭锂离子电容器应用
A universal strategy for producing 2D functional carbon-rich materials from 2D porous organic polymers for dual-carbon lithium-ion capacitors
摘要
Abstract
Two-dimensional(2D)carbon materials have attracted enormous attention,but the complicated synthesis methods,in-homogeneous structure and uncontrollable properties still limit their use.Here we report a universal protocol for fabricating a series of heteroatom-doped 2D porous polymers,including pyrrole and indole as nitrogen-dopant sources,and 3,4-ethoxylene dioxy thiophene as a sulfur-dopant source by a simple chemical crosslinking reaction.This bottom-up strategy allows for the large-scale synthesis of functionalized ultrathin carbon nanosheets with a high heteroatom doping content and abundant porosity.Consequently,the obtained N-doped carbon-rich nanosheets(NCNs)sample has a specific capacity of 573.4 mAh g-1 at 5 A g-1 as an anode for lith-ium-ion capacitors(LICs),and the optimized sample has a specific capacitance of 100.0 F g-1 at 5 A g-1 when used as a cathode for a LIC.A dual-carbon LIC device was also developed that had an energy density of 168.4 Wh kg-1 at 400 W kg-1,while maintaining outstanding cycling stability with a retention rate of 86.3%after 10000 cycles.This approach has the potential to establish a way for the precise synthesis of substantial amounts of 2D functionalized carbon nanosheets with the desired structure and properties.关键词
功能化炭纳米片/多孔有机聚合物/形成机制/普适性合成策略/双炭锂离子电容器Key words
Functional carbon nanosheets/Porous organic polymer/Formation mechanism/Universal synthetic strategy/Dual-car-bon lithium-ion capacitor引用本文复制引用
辛晓雨,赵斌,岳金书,孔德斌,周善柯,黄小雄,王斌,智林杰,肖志昌..基于二维多孔有机聚合物制备二维功能化富炭材料的普适性策略及双炭锂离子电容器应用[J].新型炭材料（中英文）,2023,38(5):898-912,15.基金项目
The authors acknowledge the financial support from the National Natural Science Foundation of China(22005084 and U20A20131),Science and Technology Project of Hebei Education Department(BJK2023021),the Natural Science Foundation of Hebei Province(E2019204131),and Talents Introduc-tion Plan of Hebei Agricultural University(YJ201819). 国家自然科学基金(22005084,U20A20131) （22005084 and U20A20131）
河北省教育厅科学技术研究项目(BJK2023021) （BJK2023021）
河北省自然科学基金(E2019204131) （E2019204131）
河北农业大学引进人才项目(YJ201819). （YJ201819）
