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
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ISSN | 14328488 |
Volume | 20Issue:3Pages: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 | |
Citation statistics | |
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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