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Boron and Nitrogen Co-Doped Trimodal-Porous Wood-Derived Carbon for Boosting Capacitive Performance
Liu, Kun; Xu, Jijian; Wang, Yuan; Qian, Meng; Zhao, Wei; Zeng, Yi; Huang, Fuqiang
2019-12-31
Source PublicationENERGY TECHNOLOGY
ISSN2194-4288
SubtypeArticle; Early Access
AbstractHeteroatom doping and a porous structure are two significant factors that improve the capacitance performance of carbon-based electrodes, but there are often one-sided considerations between them. Herein, effective B, N co-doping and trimodal-porous structure from the carbonization of sustainable natural wood are obtained at the same time. The unique pore structure is coarsely tuned by a modified ZnAc2-assisted hypersaline route and further fine-tuned by controlling the doping levels of boron and nitrogen. The high specific surface area of porous carbon up to 1201 m(2) g(-1) is coordinated with the trimodal foam-like nanopores. This carbon-based material as a supercapacitor electrode can provide not only trimodal-porous ion transfer highways but also doping-induced pseudocapacitance. The resulting pore and heteroatom reengineered wood-derived carbon harvests a remarkable capacitance of 479 F g(-1) at 1 A g(-1), among the highest values in reported B, N co-doped carbon electrodes. The aqueous symmetric supercapacitor exhibits energy density of 18.5 Wh kg(-1) and power density of 6.4 kW kg(-1), along with >90% capacitance retention, both in H2SO4 and Li2SO4 electrolyte over 10 000 cycles.
Keywordco-doping hypersaline conditions supercapacitors trimodal-porous structures wood-derived carbon
DOI10.1002/ente.201900950
WOS KeywordENERGY-STORAGE ; GRAPHENE ; SUPERCAPACITORS ; NANOTUBES ; SALT
Language英语
WOS Research AreaEnergy & Fuels
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27528
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Liu, Kun,Xu, Jijian,Wang, Yuan,et al. Boron and Nitrogen Co-Doped Trimodal-Porous Wood-Derived Carbon for Boosting Capacitive Performance[J]. ENERGY TECHNOLOGY,2019.
APA Liu, Kun.,Xu, Jijian.,Wang, Yuan.,Qian, Meng.,Zhao, Wei.,...&Huang, Fuqiang.(2019).Boron and Nitrogen Co-Doped Trimodal-Porous Wood-Derived Carbon for Boosting Capacitive Performance.ENERGY TECHNOLOGY.
MLA Liu, Kun,et al."Boron and Nitrogen Co-Doped Trimodal-Porous Wood-Derived Carbon for Boosting Capacitive Performance".ENERGY TECHNOLOGY (2019).
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