Self-assembled carbon nanoribbons with the heteroatom doping used as ultrafast charging cathodes in zinc-ion hybrid supercapacitors

作     者：Yuying Li Jiajia Huang Liqun Kang Zhihong Tian Feili Lai Dan J.L.Brett Tianxi Liu Guanjie He 李钰莹;黄佳佳;亢立群;田志红;赖飞立;Dan J.L.Brett;刘天西;何冠杰

作者机构：School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001China Department of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUK Engineering Research Center for NanomaterialsHenan UniversityKaifeng 475001China Department of ChemistryKU LeuvenCelestijnenlaan 200FLeuven 3001Belgium Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringInternational Joint Research Laboratory for Nano Energy CompositesJiangnan UniversityWuxi 214122China School of ChemistryUniversity of LincolnJoseph Banks LaboratoriesGreen LaneLincolnLN67DLUK 

基　　金：supported by the National Natural Science Foundation of China(51873198) the Engineering and Physical Sciences Research Council(EPSRC,EP/V027433/1) the Royal Society(RGSR1211080) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2022年第65卷第6期

页      码：1495-1502页

摘      要：Zinc-ion hybrid supercapacitors(ZHSs)are highly desirable for large-scale energy storage applications owing to the merits of high safety,low cost and ultra-long cycle *** poor rate performance of cathodes,however,severely hinders their ***,aqueous ZHSs with superior performance were fabricated by employing a series of ultrathin carbon nanobelts modified with B,N,O(CPTHBBx).The heteroatom doping can significantly modify the chemical behaviors of carbon frameworks,which could generate numerous active sites and accelerate the charge *** systematic investigation reveals that the B-N groups are active species for fast Zn-ion adsorption and *** a result,the best-performed CPTHB-B2 exhibits an excellent electrochemical performance as cathodes in ZHSs,delivering a high specific capacitance of 415.3 F g^(−1) at 0.5 A g^(−1),a record high capacitance retention of 81%when increasing the current densities from 0.5 to 100 A g^(−1),an outstanding energy density of 131.9 W h kg^(−1) and an exceptionally high power density of 42.1 kW kg^(−1).Our work provides a new cathode design for ultrafast charging Zn-ion storage devices.

主 题 词：carbon nanoribbons self-assembled heteroatom doping ultrafast charging Zn-ion storage 

学科分类：081702[081702] 080801[080801] 0808[工学-自动化类] 07[理学] 070205[070205] 08[工学] 0817[工学-轻工类] 080501[080501] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s40843-021-1923-6

馆 藏 号：203109521...