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作者机构:Key Laboratory of Textile Science&TechnologyMinistry of EducationDonghua UniversityShanghai 201620China College of TextilesDonghua UniversityShanghai 201620China
出 版 物:《Journal of Donghua University(English Edition)》 (东华大学学报(英文版))
年 卷 期:2021年第38卷第2期
页 面:91-98页
学科分类:0821[工学-纺织科学与工程] 08[工学] 082101[工学-纺织工程]
基 金:National Natural Science Foundation of China(No.51903033) Fundamental Research Funds for the Central Universities,China(Nos.2232020G-01 and 20D110110) Shanghai Sailing Program,China(No.19YF1400800)
主 题:wet-spinning lignin derived carbon graphene specific capacitance energy density
摘 要:One-dimensional graphene fibers(GFs)possess excellent properties,including high electrical conductivity,good physical and chemical stability,high thermal conductivity,flexibility,*** are ideal electrode materials for fiber-shaped ***,due to the lack of an effective method to manufacture GFs with high specific capacitance,their low energy density hinders their practical ***,we decorated wet-spun graphene oxide fibers(GOFs)by dip-coating them with graphene oxide(GO)solutions containing different contents of lignin to obtain a core-sheath lignin/GO composite *** carbonization and activation,we successfully prepared lignin derived carbon/GF *** assembled fiber-shaped supercapacitors(FSSCs)exhibit a specific capacitance of 9.98 mF/cm^(2)and an energy density of 0.89μW·h/cm^(2),about 6 times of those of pure GFs(1.57 mF/cm^(2)and 0.14μW·h/cm^(2),respectively),long cycling life and cycling *** suggests that the introduction of lignin derived carbon into GFs can effectively increase the specific capacitance and the energy density of FSSCs.