dc.contributor.author
Li, Tong
dc.contributor.author
Huang, Xinli
dc.contributor.author
Lei, Shulai
dc.contributor.author
Zhang, Jing
dc.contributor.author
Li, Xin
dc.contributor.author
Wang, Chengxiang
dc.contributor.author
Zhang, Zhiwei
dc.contributor.author
Wang, Shijie
dc.contributor.author
Yin, Longwei
dc.contributor.author
Wang, Rutao
dc.date.accessioned
2023-12-07T08:00:52Z
dc.date.available
2023-12-07T08:00:52Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/41801
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-41521
dc.description.abstract
Heteroatom-doped carbon materials have high gravimetric potassium-ion storage capability because of their abundant active sites and defects. However, their practical applications toward potassium storage are limited by sluggish reaction kinetics and short cycling life owing to the large ionic radius of K+ and undesirable parasitic reactions. Herein, we report a new strategy that allows for bottom-up patterning of thin N/P co-doped carbon layers with a uniform mesoporous structure on two-dimensional graphene sheets. The highly porous architecture and N/P co-doping properties provide abundant active sites for K+, and the graphene sheets promote charge/electron transfer. This synergistic structure enables excellent K+ storage performance in terms of specific capacity (387.6 mAh g-1 at 0.05 A g-1), rate capability (over 5 A g-1), and cycling stability (70% after 3,000 cycles). As a proof of concept, a potassium-ion capacitor assembled using this carbon anode yields a high energy density of 107 Wh kg-1, a maximum power density of 18.3 kW kg-1, and ultra-long cycling stability over 40,000 cycles.
en
dc.format.extent
17 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
Potassium-ion capacitor
en
dc.subject
heteroatom doping
en
dc.subject
mesoporous carbon
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
dc.title
Two-dimensional nitrogen and phosphorus co-doped mesoporous carbon-graphene nanosheets anode for high-performance potassium-ion capacitor
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
300018
dcterms.bibliographicCitation.doi
10.20517/energymater.2022.93
dcterms.bibliographicCitation.journaltitle
Energy Mater
dcterms.bibliographicCitation.number
2
dcterms.bibliographicCitation.volume
3
dcterms.bibliographicCitation.url
https://doi.org/10.20517/energymater.2022.93
refubium.affiliation
Biologie, Chemie, Pharmazie
refubium.affiliation.other
Institut für Chemie und Biochemie
![This authority value has been confirmed as accurate by an interactive user](/cache_202e45ad85b55efaeb29160f63cd3f3b/themes/FuCD/images/authority_control/invisible.gif)
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2770-5900
refubium.resourceType.provider
WoS-Alert