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Nature-derived, structure and function integrated ultra-thick carbon electrode for high-performance supercapacitors
Liu, K; Mo, RW; Dong, WJ; Zhao, W; Huang, FQ
2020-10-14
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Issue38Pages:20072
SubtypeArticle
AbstractThe design of ultra-thick electrodes for energy storage has the potential to significantly increase the device-level energy density, but still faces major challenges of low mechanical stability and slow charge kinetics. Herein, inspired by the hierarchical structure and lignocellulosic component of natural wood, we developed a structure-engineered and heteroatom-functionalized carbon slice, leveraging selective delignification and hydrogen bonding chemistryviapyrolyzing the as-modified porous cellulose following a one-pot chemical treatment of natural wood. When explored as a binder-free, conductive-additive-free, and self-supporting ultra-thick electrode, the electrode shows outstanding areal and gravimetric capacitance of 2980 mF cm(-2)and 183 F g(-1), respectively. Moreover, the as-assembled quasi-solid-state symmetric supercapacitor yields high areal, gravimetric and volumetric energy densities of 0.3 mW h cm(-2), 9.68 W h kg(-1), and 0.63 mW h cm(-3), respectively. The excellent electrochemical properties can be attributed to the synergistic effect of dual heteroatom-containing groups and well-aligned channels. This work provides a new design strategy for ultra-thick electrodes toward next-generation, high-performance energy storage devices.
DOI10.1039/d0ta06108e
WOS KeywordGRAPHENE AEROGELS ; WOOD ; NITROGEN
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27692
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Liu, K,Mo, RW,Dong, WJ,et al. Nature-derived, structure and function integrated ultra-thick carbon electrode for high-performance supercapacitors[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020(38):20072.
APA Liu, K,Mo, RW,Dong, WJ,Zhao, W,&Huang, FQ.(2020).Nature-derived, structure and function integrated ultra-thick carbon electrode for high-performance supercapacitors.JOURNAL OF MATERIALS CHEMISTRY A(38),20072.
MLA Liu, K,et al."Nature-derived, structure and function integrated ultra-thick carbon electrode for high-performance supercapacitors".JOURNAL OF MATERIALS CHEMISTRY A .38(2020):20072.
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