Nitrogen and boron co-doped densified laser-induced graphene for supercapacitor applications
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Khandelwal, M. | - |
dc.contributor.author | Tran, C.V. | - |
dc.contributor.author | Lee, J. | - |
dc.contributor.author | In, J.B. | - |
dc.date.accessioned | 2021-09-23T07:40:36Z | - |
dc.date.available | 2021-09-23T07:40:36Z | - |
dc.date.issued | 2022-01-15 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.issn | 1873-3212 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/49673 | - |
dc.description.abstract | This study demonstrates a facile and versatile approach to the fabrication of N and B co-doped and simultaneously densified laser-induced graphene (NB-dLIG) based on a duplicate laser pyrolysis method for supercapacitor applications. The LIG obtained after the first laser pyrolysis is coated with an additional thin layer of polyamic acid /H3BO3 and additionally irradiated with a laser, resulting in the simultaneous densification and incorporation of N and B heteroatoms into the graphene-like structure of LIG. The NB-dLIG with optimized H3BO3 loading (1 wt%) and duplicate laser power (2.4 W; NB1-dLIG-2.4) exhibits remarkably improved capacitive performance due to the synergistic effect of N and B co-doping. The NB1-dLIG-2.4 electrode delivers a specific areal capacitance (CA) of 104.3 mF/cm2, which is nearly 2.5 and 12 times higher than N-doped dLIG (42.4 mF/cm2) and undoped single pyrolyzed LIG (9.0 mF/cm2), respectively, at 0.2 mA/cm2 using a three-electrode assembly. Furthermore, a solid-state flexible supercapacitor is fabricated with NB1-dLIG-2.4 and PVA-H2SO4 gel electrolyte, attaining a high CA (40.4 mF/cm2 at 0.05 mA/cm2), with excellent cycling stability, Coulombic efficiency, and mechanical flexibility. This work opens a new avenue for fabricating LIG doped with multiple heteroatoms, which can be used in various electrochemical applications. © 2021 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Nitrogen and boron co-doped densified laser-induced graphene for supercapacitor applications | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.cej.2021.131119 | - |
dc.identifier.bibliographicCitation | Chemical Engineering Journal, v.428 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000723712600003 | - |
dc.identifier.scopusid | 2-s2.0-85109438247 | - |
dc.citation.title | Chemical Engineering Journal | - |
dc.citation.volume | 428 | - |
dc.type.docType | Article | - |
dc.publisher.location | 스위스 | - |
dc.subject.keywordAuthor | Densification | - |
dc.subject.keywordAuthor | Flexible supercapacitor | - |
dc.subject.keywordAuthor | Laser-induced graphene | - |
dc.subject.keywordAuthor | N and B co-doping | - |
dc.subject.keywordAuthor | Pseudo-capacitance | - |
dc.subject.keywordPlus | POROUS GRAPHENE | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CAPACITORS | - |
dc.subject.keywordPlus | SURFACE MODIFICATION | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | ALKANOLAMINE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | POLYIMIDE | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
84, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea (06974)02-820-6194
COPYRIGHT 2019 Chung-Ang University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.