Full metadata record

DC Field Value Language
dc.contributor.authorChen, Nanjun-
dc.contributor.authorPaek, Sae Yane-
dc.contributor.authorLee, Ju Yeon-
dc.contributor.authorPark, Jong Hyeong-
dc.contributor.authorLee, So Young-
dc.contributor.authorLee, Young Moo-
dc.date.accessioned2024-01-19T13:03:08Z-
dc.date.available2024-01-19T13:03:08Z-
dc.date.created2022-01-10-
dc.date.issued2021-12-09-
dc.identifier.issn1754-5692-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/115938-
dc.description.abstractLow-cost anion exchange membrane (AEM) water electrolyzers (AEMWEs) are a new technology for the production of high-purity hydrogen; however, their current density and durability are far lower than those of proton exchange membrane water electrolyzers (PEMWEs). Here, we report poly(fluorenyl-co-aryl piperidinium) (PFAP)-based anhydrous cathode AEMWEs that exceed the state-of-the-art PEMWEs with respect to current density. In addition to a rational electrode design, PFAP-based AEMs with a high water diffusivity and ion conductivity are crucial for high-performance AEMWEs. Using platinum-group-metal (PGM) catalysts, the present AEMWEs achieved a new record current density of 7.68 A cm(-2) at 2.0 V with a 1 M KOH anode, which surpasses that of state-of-the-art PEMWEs (6 A cm(-2) at 2.0 V). PGM-free AEMWEs displayed an excellent current density of 1.62 A cm(-2) at 2.0 V. Importantly, PGM and PGM-free AEMWEs operated stably under a 0.5 A cm(-2) current density at 60 degrees C for more than 1000 h. This work sheds light on current high-performance AEMWEs.-
dc.languageEnglish-
dc.publisherRoyal Society of Chemistry-
dc.subjectIONOMERS-
dc.subjectCATALYST-
dc.titleHigh-performance anion exchange membrane water electrolyzers with a current density of 7.68 A cm(-2) and a durability of 1000 hours-
dc.typeArticle-
dc.identifier.doi10.1039/d1ee02642a-
dc.description.journalClass1-
dc.identifier.bibliographicCitationEnergy & Environmental Science, v.14, no.12, pp.6338 - 6348-
dc.citation.titleEnergy & Environmental Science-
dc.citation.volume14-
dc.citation.number12-
dc.citation.startPage6338-
dc.citation.endPage6348-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000719434700001-
dc.identifier.scopusid2-s2.0-85121215295-
dc.relation.journalWebOfScienceCategoryChemistry, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryEnergy & Fuels-
dc.relation.journalWebOfScienceCategoryEngineering, Chemical-
dc.relation.journalWebOfScienceCategoryEnvironmental Sciences-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaEnergy & Fuels-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalResearchAreaEnvironmental Sciences & Ecology-
dc.type.docTypeArticle-
dc.subject.keywordPlusIONOMERS-
dc.subject.keywordPlusCATALYST-
Appears in Collections:
KIST Article > 2021
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

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

BROWSE