Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor
Wang, Yulin; Yang, Binbin; Zhang, Deyi; Shi, Hao; Lei, Miao; Li, Hongxia; Wang, Kunjie
2020-05-15
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume512
AbstractPorous carbons are considered as ideal electrode materials to match the performance and cost requirements of commercial supercapacitor. However the energy waste in the conversion of raw materials to porous carbons by traditional heating method is enormous. Herein we report a strong polar nonaqueous solvent-assisted microwave method for cost-efficient preparation of N and P co-doped microporous carbon. Compared with traditional heating method, the reported material fabricated by microwave irradiation exhibits much higher specific surface area (2204 m(2) g(-1)) and higher large micropore (1 nm ( )<= d <= 2 nm) proportion, more pseudo-capacitance contribution and stronger conductivity also are procured through microwave irradiation. The specific capacitance reaches up to 317 F g(-1) in 6 M KOH solution, which is about 1.36 times higher than that of the control sample fabricated by traditional heating method. The symmetrical supercapacitor device based on the reported material exhibits excellent rate and cycle performance, whose capacitance retention arrives 88% even under high current density of 20 A g(-1), and more than 95% of initial capacitance is retained after 10,000 cycles. Meanwhile, when ionic liquid (EMIMBF4) is employed as electrolyte, the energy density of the supercapacitor device reaches up to 48.6 Wh kg(-1) at a power density of 468.8 W kg(-1).
KeywordMicrowave fabrication Microporous carbon Supercapacitor Heteroatoms doping
DOI10.1016/j.apsusc.2020.145711
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51462020][21867015]
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000522731700082
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64260
Collection石油化工学院
Corresponding AuthorZhang, Deyi
AffiliationLanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
First Author AffilicationColl Petrochem Engn
Corresponding Author AffilicationColl Petrochem Engn
First Signature AffilicationColl Petrochem Engn
Recommended Citation
GB/T 7714
Wang, Yulin,Yang, Binbin,Zhang, Deyi,et al. Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor[J]. APPLIED SURFACE SCIENCE,2020,512.
APA Wang, Yulin.,Yang, Binbin.,Zhang, Deyi.,Shi, Hao.,Lei, Miao.,...&Wang, Kunjie.(2020).Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor.APPLIED SURFACE SCIENCE,512.
MLA Wang, Yulin,et al."Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor".APPLIED SURFACE SCIENCE 512(2020).
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