Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors
Li, Yubing1; Zhang, Deyi1,2; Zhang, Yameng2; He, Jingjing1; Wang, Yulin1; Wang, Kunjie1; Xu, Yangtao2; Li, Hongxia1; Wang, Yi1
AbstractLarge micropore with a pore size of 1-2 nm can allow high charge storage capability while ensure fast ions transport, which serves to improve the energy density of supercapacitors without sacrificing high power density. Herein, we report a large micropore dominant microporous carbon derived from a biomass waste, flaxseed residue from the edible oil industry, for high-performance supercapacitors. The reported material exhibits a large specific surface area of up to 3230 m(2) g(-1), and more than 70.1% of micropore volume is contributed by large micropores. The specific capacitance of the obtained material reaches up to 369 and 398 F g(-1) in KOH and H2SO4 electrolyte, respectively. Meanwhile, the assembled supercapacitor device based on the obtained material exhibits excellent rate and cycle performance. Over 92.7% of the initial capacitance is retained even under a large current density of 20 A g(-3) and the capacitance retention is more than 98.1% after 10000 times cycle in KOH electrolyte. The energy density of the assembled supercapacitor device reaches 61.2 Wh k g(-1) at a power density of 468.8 W k g(-1), and a high energy density of 43.5 Wh kg(-1) is retained at a large power density of 13.3 kW kg(-1) in ionic liquid EMIMBF4 electrolyte.
KeywordMicroporous carbon Large micropore Biomass Supercapacitors
Indexed BySCI ; SCIE
Funding ProjectNational Natural Science Foundation of China[51462020][21867015]
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000509632300067
EI Accession Number20194807741153
EI KeywordsMicroporosity
EI Classification Number701.1 Electricity: Basic Concepts and Phenomena - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids
Source libraryWOS
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Cited Times:141[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhang, Deyi
Affiliation1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China;
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
First Author AffilicationColl Petrochem Engn
Corresponding Author AffilicationColl Petrochem Engn;  State Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
First Signature AffilicationColl Petrochem Engn
Recommended Citation
GB/T 7714
Li, Yubing,Zhang, Deyi,Zhang, Yameng,et al. Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors[J]. JOURNAL OF POWER SOURCES,2020,448.
APA Li, Yubing.,Zhang, Deyi.,Zhang, Yameng.,He, Jingjing.,Wang, Yulin.,...&Wang, Yi.(2020).Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors.JOURNAL OF POWER SOURCES,448.
MLA Li, Yubing,et al."Biomass-derived microporous carbon with large micropore size for high-performance supercapacitors".JOURNAL OF POWER SOURCES 448(2020).
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