B, N-dual doped sisal-based multiscale porous carbon for high-rate supercapacitors

Simple item page
dc.citation.issue3
dc.citation.volume9
dc.contributor.authorWu H
dc.contributor.authorYuan W
dc.contributor.authorZhao Y
dc.contributor.authorHan D
dc.contributor.authorYuan X
dc.contributor.authorCheng L
dc.coverage.spatialEngland
dc.date.accessioned2024-07-28T23:34:26Z
dc.date.available2024-07-28T23:34:26Z
dc.date.issued2019-01-11
dc.description.abstractB, N dual-doped sisal-based activated carbon (BN-SAC) with a multiscale porous structure for high-rate supercapacitor electrode was prepared through a novel and facile strategy. With the inherent cellular channels serving as primary macropores, secondary mesopores and micropores are generated on the fiber surface and tracheid walls through low-pressure rapid carbonization of (NH4)2B4O7-containing sisal fibers and successive KOH activation. In addition to introducing B, N atoms into the BN-SAC, the additive also facilitates the formation of mesopores due to the rapid gas evaporation during its decomposition, leading to significantly increased specific surface area (2017 m2 g-1) and mesoporosity (68.6%). As a result, the BN-SAC-3 shows highly enhanced electrochemical performance including a high specific capacitance of 304 F g-1, excellent rate capability (with 72.6% retention at 60 A g-1) and superior cycling stability (4.6% capacitance loss after 3000 cycles). After assembling the BN-SAC-3 into symmetric supercapacitor, it shows a specific capacitance of 258 F g-1 at 1 A g-1 with 76.4% retention at 40 A g-1 in 6 M KOH electrolyte, and delivers a maximum energy density of 24.3 W h kg-1 at a power density of 612.8 W kg-1 in 1 M TEABF4/AN electrolyte. This work provides a new strategy for the synthesis of multiscale porous ACs for high-performance supercapacitors or other energy storage and conversion devices and is expected to be applied on other biomasses for large-scale production.
dc.description.confidentialfalse
dc.format.pagination1476-1486
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/35518021
dc.identifier.citationWu H, Yuan W, Zhao Y, Han D, Yuan X, Cheng L. (2019). B, N-dual doped sisal-based multiscale porous carbon for high-rate supercapacitors.. RSC Adv. 9. 3. (pp. 1476-1486).
dc.identifier.doi10.1039/c8ra09663e
dc.identifier.eissn2046-2069
dc.identifier.elements-typejournal-article
dc.identifier.issn2046-2069
dc.identifier.piic8ra09663e
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71125
dc.languageeng
dc.publisherThe Royal Society of Chemistry
dc.publisher.urihttps://pubs.rsc.org/en/content/articlelanding/2019/ra/c8ra09663e
dc.relation.isPartOfRSC Adv
dc.rights© The Royal Society of Chemistry 2019
dc.rightsCC BY-NC 3.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/
dc.titleB, N-dual doped sisal-based multiscale porous carbon for high-rate supercapacitors
dc.typeJournal article
pubs.elements-id419745
pubs.organisational-groupOther
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Published version.pdf
Size:
1.58 MB
Format:
Adobe Portable Document Format
Description:
419745 PDF.pdf
Download
Thumbnail Image
Name:
Evidence.pdf
Size:
1.02 MB
Format:
Adobe Portable Document Format
Description:
c8ra09663e1.pdf
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
9.22 KB
Format:
Plain Text
Description:
Download
Collections
Journal Articles