In Situ/Operando Capturing Unusual Ir6+ Facilitating Ultrafast Electrocatalytic Water Oxidation

Cited 44 time in webofscience Cited 0 time in scopus
  • Hit : 121
  • Download : 0
DC FieldValueLanguage
dc.contributor.authorLi, L.ko
dc.contributor.authorSun, H.ko
dc.contributor.authorHu, Z.ko
dc.contributor.authorZhou, J.ko
dc.contributor.authorHuang, Y.-C.ko
dc.contributor.authorHuang, H.ko
dc.contributor.authorSong, S.ko
dc.contributor.authorPao, C.-W.ko
dc.contributor.authorChang, Y.-C.ko
dc.contributor.authorKomarek, A.C.ko
dc.contributor.authorLin, H.-J.ko
dc.contributor.authorChen, C.-T.ko
dc.contributor.authorDong, C.-L.ko
dc.contributor.authorWang, J.-Q.ko
dc.contributor.authorZhang, L.ko
dc.date.accessioned2021-12-23T06:43:15Z-
dc.date.available2021-12-23T06:43:15Z-
dc.date.created2021-12-23-
dc.date.created2021-12-23-
dc.date.created2021-12-23-
dc.date.issued2021-
dc.identifier.citationADVANCED FUNCTIONAL MATERIALS, v.31, no.43-
dc.identifier.issn1616-301X-
dc.identifier.urihttp://hdl.handle.net/10203/290994-
dc.description.abstractIdentifying real active sites and understanding the mechanism of oxygen evolution reaction (OER) are still a big challenge today for developing efficient electrochemical catalysts in renewable energy technologies. Here, using a combined in situ/operando experiments and theory, the catalytic mechanism of the ordered OER active Co and Ir ions in Sr2CoIrO6−δ is studied, which exhibits an unprecedented low overpotential 210 mV to achieve 10 mA cm–2, ranking the highest performance among perovskite-based solid-state catalysts. Operando X-ray absorption spectroscopies as a function of applied voltage indicates that Ir4+ ion is gradually converted into extremely high-valence Ir5+/6+, while the part of Co3+ ion is transferred into Co4+ under OER process. Density functional theory calculations explicitly reveal the order Co-O-Ir network as an origin of ultrahigh OER activity. The work opens a promising path to overcome the sluggish kinetics of OER bottleneck for water splitting via proper arrangements of the multi-active sites in catalyst. © 2021 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.titleIn Situ/Operando Capturing Unusual Ir6+ Facilitating Ultrafast Electrocatalytic Water Oxidation-
dc.typeArticle-
dc.identifier.wosid000680519300001-
dc.identifier.scopusid2-s2.0-85111697563-
dc.type.rimsART-
dc.citation.volume31-
dc.citation.issue43-
dc.citation.publicationnameADVANCED FUNCTIONAL MATERIALS-
dc.identifier.doi10.1002/adfm.202104746-
dc.contributor.localauthorSun, H.-
dc.contributor.nonIdAuthorLi, L.-
dc.contributor.nonIdAuthorHu, Z.-
dc.contributor.nonIdAuthorZhou, J.-
dc.contributor.nonIdAuthorHuang, Y.-C.-
dc.contributor.nonIdAuthorHuang, H.-
dc.contributor.nonIdAuthorSong, S.-
dc.contributor.nonIdAuthorPao, C.-W.-
dc.contributor.nonIdAuthorChang, Y.-C.-
dc.contributor.nonIdAuthorKomarek, A.C.-
dc.contributor.nonIdAuthorLin, H.-J.-
dc.contributor.nonIdAuthorChen, C.-T.-
dc.contributor.nonIdAuthorDong, C.-L.-
dc.contributor.nonIdAuthorWang, J.-Q.-
dc.contributor.nonIdAuthorZhang, L.-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordAuthoroperando X-ray absorption spectroscopy-
dc.subject.keywordAuthoroxygen evolution reaction-
dc.subject.keywordAuthorsynergistic effects, ordered multi-active sites, high-valence elements-
Appears in Collection
RIMS Journal Papers
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 44 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0