BROWSE

Related Scientist

bielawsk,christopherw's photo.

bielawsk,christopherw
다차원탄소재료연구단
more info

ITEM VIEW & DOWNLOAD

N-Doped Porous Graphitic Carbon Hybridized with CrN Nanocrystals: Electrocatalysis-Induced Li2S Three-Dimensional Growth and Enhanced Cathode Kinetics

DC Field Value Language
dc.contributor.authorZhou, Xueqin-
dc.contributor.authorZhou, Ji-
dc.contributor.authorSun, Longhua-
dc.contributor.authorChen, Shang-
dc.contributor.authorWang, Manyun-
dc.contributor.authorMeng, Xiaodong-
dc.contributor.authorQu, Jin-
dc.contributor.authorSun, Congkai-
dc.contributor.authorYu, Zhong-Zhen-
dc.contributor.authorHuang, Yong-
dc.contributor.authorChristopher W. Bielawski-
dc.contributor.authorGeng, Jianxin-
dc.date.accessioned2023-12-13T22:00:12Z-
dc.date.available2023-12-13T22:00:12Z-
dc.date.created2023-11-28-
dc.date.issued2023-10-
dc.identifier.issn2574-0962-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/14345-
dc.description.abstractLithium-sulfur (Li-S) batteries hold potential for use as next-generation rechargeable devices due to their high theoretical energy density (2600 W h kg(-1)) as well as the high abundance and environmental friendliness of sulfur. However, the commercial use of such devices is hindered by sluggish cathode reaction kinetics and the polysulfide shuttle effect. Herein, we report the synthesis of an N-doped porous graphitic carbon that is hybridized with CrN nanocrystals (CrN@N-PGC) and show that Li-S batteries that contain such a composite may overcome the existing challenges. The CrN@N-PGC composite is synthesized by calcinating a porous, dry gel derived from a brine solution containing glucose, (NH4)(2)CrO4, and urea. Although NH3 is commonly used as a nitrogen source to form transition-metal nitrides, the reagent is a gas and toxic. The synthetic procedure described herein employs urea as a safe and efficient replacement. When used in Li-S batteries, the CrN nanocrystals (1) electrocatalytically promote polysulfide conversion reactions, (2) suppress the polysulfide shuttle effect, and (3) facilitate the deposition of Li2S in a 3D fashion, which ultimately increases sulfur utilization. Li-S cells containing the CrN@N-PGC composite show outstanding electrochemical performance, including a high specific capacity (1591 mA h g(-1) at 0.1 C), a high rate capability (548 mA h g(-1) at 6 C), and a low decay rate (0.066% per cycle over 600 cycles at 2 C).-
dc.language영어-
dc.publisherAMER CHEMICAL SOC-
dc.titleN-Doped Porous Graphitic Carbon Hybridized with CrN Nanocrystals: Electrocatalysis-Induced Li<sub>2</sub>S Three-Dimensional Growth and Enhanced Cathode Kinetics-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid001096784900001-
dc.identifier.scopusid2-s2.0-85177991739-
dc.identifier.rimsid82159-
dc.contributor.affiliatedAuthorChristopher W. Bielawski-
dc.identifier.doi10.1021/acsaem.3c01999-
dc.identifier.bibliographicCitationACS APPLIED ENERGY MATERIALS, v.6, no.21, pp.11157 - 11167-
dc.relation.isPartOfACS APPLIED ENERGY MATERIALS-
dc.citation.titleACS APPLIED ENERGY MATERIALS-
dc.citation.volume6-
dc.citation.number21-
dc.citation.startPage11157-
dc.citation.endPage11167-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaEnergy & Fuels-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryEnergy & Fuels-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.subject.keywordPlusLITHIUM-ION-
dc.subject.keywordPlusTITANIUM NITRIDE-
dc.subject.keywordPlusHIGHLY EFFICIENT-
dc.subject.keywordPlusENERGY-STORAGE-
dc.subject.keywordPlusTHIN-FILMS-
dc.subject.keywordPlusELECTRODE-
dc.subject.keywordPlusCATALYSTS-
dc.subject.keywordPlusATOMS-
dc.subject.keywordPlusHOST-
dc.subject.keywordAuthorlithium-sulfur batteries-
dc.subject.keywordAuthorporous graphitic carbon-
dc.subject.keywordAuthortransition-metal nitrides-
dc.subject.keywordAuthorsulfur host materials-
dc.subject.keywordAuthorelectrocatalytic effect-
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse