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Constructing Hierarchical Porous Carbon of High-Performance Capacitance through a Two-Step Nitrogen-Fixation Method
Qi, XH; Xu, F; Sun, P; Lin, TQ; Huang, FQ
2020-07-01
Source PublicationENERGY TECHNOLOGY
ISSN2194-4288
Issue7
SubtypeArticle
AbstractHighly conductive and nitrogen-rich carbon materials have broad application prospects in energy storage, yet they are somehow contradictory because good conductivity requires high-temperature heat treatment, which decomposes most nitrogen species. Herein, a novel approach to synthesize a nitrogen-rich and highly conductive carbon material with extraordinary capacitance through a two-step nitrogen-fixation sol-gel method is reported. The process benefits from the coordination of Zn2+ with nitrogen atoms in the precursor sol and the stabilizing bonding between silicon and nitrogen during high-temperature chemical vapor deposition. The final product shows a high nitrogen content of 5.6 at%, a hierarchical porous structure with a high specific surface area (1610 m(2) g(-1)), and an extraordinary conductivity (23 S cm(-1)), which enables an impressive capacitance of 380 F g(-1). This nitrogen-fixing method starting with a composite sol-gel may offer a reliable route to the preparation of high-performance supercapacitor electrode materials.
DOI10.1002/ente.202000107
WOS KeywordMESOPOROUS CARBON ; KOH ACTIVATION ; SUPERCAPACITORS ; WASTE ; ZN
Language英语
WOS Research AreaEnergy & Fuels
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28042
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Qi, XH,Xu, F,Sun, P,et al. Constructing Hierarchical Porous Carbon of High-Performance Capacitance through a Two-Step Nitrogen-Fixation Method[J]. ENERGY TECHNOLOGY,2020(7).
APA Qi, XH,Xu, F,Sun, P,Lin, TQ,&Huang, FQ.(2020).Constructing Hierarchical Porous Carbon of High-Performance Capacitance through a Two-Step Nitrogen-Fixation Method.ENERGY TECHNOLOGY(7).
MLA Qi, XH,et al."Constructing Hierarchical Porous Carbon of High-Performance Capacitance through a Two-Step Nitrogen-Fixation Method".ENERGY TECHNOLOGY .7(2020).
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