Lignite-derived mesoporous N- and O-enriched carbon sheet: a low-cost promising electrode for high-performance electrochemical capacitors

doi:10.1007/s10008-015-3100-8

	Lignite-derived mesoporous N- and O-enriched carbon sheet: a low-cost promising electrode for high-performance electrochemical capacitors
	Zhu S.2; Chen Q.2; Shi Y.2; Chen Z.2; Bao R.2; Zhou L.2; Hou L.2; Hui K.N.1; Yuan C.2
	2016-03-01
Source Publication	Journal of Solid State Electrochemistry
ISSN	14328488
Volume	20 Issue:3 Pages:713-723
Abstract	In the work, we successfully fabricate mesoporous N- and O-enriched carbon (NOC) with adjustable porosity and specific surface area (SSA) by using low-cost lignite as a precursor coupled with general KOH or ZnCl activation for electrochemical capacitors (ECs). Physicochemical and electrochemical characterizations reveal that chemical activating agents influence significantly upon the specific morphology, pore structure, and electrochemical performance of the resultant products. Strikingly, KOH-activated NOC (NOC-K) sheets are endowed with high SSA of ∼1257 m g, large pore volume of 1.3 cm g, and optimized pore size of ∼3 nm, rendering its electrochemical capacitance superior to those of NOC and ZnCl-activated NOC (NOC-Z) in 6 M KOH. Thanks to its rich mesoporosity coupled with large electroactive SSA and heteroatom doping (N of ∼4.8 at.% and O of ∼23.3 at.%) effect, the NOC-K electrode yields even better electrochemical behaviors in 1 M HSO than those in 6 M KOH.
Keyword	Electrochemical capacitors Faradaic contribution Hierarchical porosity N- and O-enriched carbon sheet
DOI	10.1007/s10008-015-3100-8
URL	View the original
Language	英語
Fulltext Access	View Full-Text via DOI View Full-Text via Web of Science View Full-Text via Scopus
Citation statistics	Cited Times [WOS]:8 [WOS Record] [Related Records in WOS]
Document Type	Journal article
Collection	University of Macau
Affiliation	1.Universidade de Macau 2.Anhui University of Technology
Recommended Citation GB/T 7714	Zhu S.,Chen Q.,Shi Y.,et al. Lignite-derived mesoporous N- and O-enriched carbon sheet: a low-cost promising electrode for high-performance electrochemical capacitors[J]. Journal of Solid State Electrochemistry,2016,20(3):713-723.
APA	Zhu S..,Chen Q..,Shi Y..,Chen Z..,Bao R..,...&Yuan C..(2016).Lignite-derived mesoporous N- and O-enriched carbon sheet: a low-cost promising electrode for high-performance electrochemical capacitors.Journal of Solid State Electrochemistry,20(3),713-723.
MLA	Zhu S.,et al."Lignite-derived mesoporous N- and O-enriched carbon sheet: a low-cost promising electrode for high-performance electrochemical capacitors".Journal of Solid State Electrochemistry 20.3(2016):713-723.

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