Self-supported hierarchically porous 3D carbon nanofiber network comprising Ni/Co/NiCo2O4 nanocrystals and hollow N-doped C nanocages as sulfur host for highly reversible Li–S batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Saroha, Rakesh | - |
dc.contributor.author | Seon, Young Hoe | - |
dc.contributor.author | Jin, Bo | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.contributor.author | Kang, Dong-Won | - |
dc.contributor.author | Jeong, Sang Mun | - |
dc.contributor.author | Cho, Jung Sang | - |
dc.date.accessioned | 2022-12-02T10:40:07Z | - |
dc.date.available | 2022-12-02T10:40:07Z | - |
dc.date.issued | 2022-10 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.issn | 1873-3212 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/59480 | - |
dc.description.abstract | Hierarchically porous nitrogen-doped carbon nanofibers (P-N-CNF) comprise well-embedded metallic-Ni/Co and spinel-type NiCo2O4 nanocrystals (Ni-Co/NiCo2O4) along with metal-organic framework-derived hollow nitrogen-doped carbon nanocages (HNC), denoted as P-N-CNF@NCO/HNC, are rationally designed as cathode substrates for advanced lithium-sulfur batteries with feasible parameters. The highly conductive and porous N-CNF matrix provides numerous conductive channels for rapid ionic and electronic transfer. HNC guarantees efficient impregnation of a large volume of active material along with high loading, channelizing the volume variation stress, and ensuring efficient electrolyte percolation, which is crucial for uniform dispersion and high active sulfur utilization, especially at low electrolyte/sulfur (E/S) ratios. The metallic-Ni/Co and polar spinel-type NiCo2O4 nanoparticles offer sufficient chemisorption sites to prevent polysulfide migration towards the anode. Li-S cells assembled using P-N-CNF@NCO/HNC as an advanced host and lithium polysulfide catholyte as the starting material displayed stable electrochemical performance even with strident battery parameters, including high sulfur content (79.8 wt%), high sulfur loading (7.7 mg cm−2), and low E/S ratio (8.0 µL mg−1). The cell displays a maximum areal capacity of 5.4 mA h cm−2 that stabilizes to 2.8 mA h cm−2 after 160 cycles at 0.1 C and is comparable to the theoretical threshold of presently available commercial systems. © 2022 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Self-supported hierarchically porous 3D carbon nanofiber network comprising Ni/Co/NiCo2O4 nanocrystals and hollow N-doped C nanocages as sulfur host for highly reversible Li–S batteries | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.cej.2022.137141 | - |
dc.identifier.bibliographicCitation | Chemical Engineering Journal, v.446 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000806979400001 | - |
dc.identifier.scopusid | 2-s2.0-85131102731 | - |
dc.citation.title | Chemical Engineering Journal | - |
dc.citation.volume | 446 | - |
dc.type.docType | Article | - |
dc.publisher.location | 스위스 | - |
dc.subject.keywordAuthor | Catholytes | - |
dc.subject.keywordAuthor | Metal-organic frameworks | - |
dc.subject.keywordAuthor | Nitrogen-doped carbon matrices | - |
dc.subject.keywordAuthor | Porous sulfur hosts | - |
dc.subject.keywordAuthor | Viable lithium-sulfur batteries | - |
dc.subject.keywordPlus | HIGH-ENERGY DENSITY | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | SEMILIQUID BATTERY | - |
dc.subject.keywordPlus | HYBRID MATERIAL | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | CATHODE | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | AEROGEL | - |
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.