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나노입자 연구단
나노입자 연구단
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Coordination tuning of cobalt phosphates towards efficient water oxidation catalyst

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dc.contributor.authorKim, H.ko
dc.contributor.authorPark, J.ko
dc.contributor.authorPark, I.ko
dc.contributor.authorJin, K.ko
dc.contributor.authorJerng, S.E.ko
dc.contributor.authorKim, S.H.ko
dc.contributor.authorNam, K.T.ko
dc.contributor.authorKisuk Kangko
dc.date.available2016-01-07T09:11:11Z-
dc.date.created2015-10-06ko
dc.date.issued201509ko
dc.identifier.issn2041-1723ko
dc.identifier.urihttp://pr.ibs.re.kr/handle/8788114/1900ko
dc.description.abstractThe development of efficient and stable water oxidation catalysts is necessary for the realization of practically viable water-splitting systems. Although extensive studies have focused on the metal-oxide catalysts, the effect of metal coordination on the catalytic ability remains still elusive. Here we select four cobalt-based phosphate catalysts with various cobalt- and phosphate-group coordination as a platform to better understand the catalytic activity of cobalt-based materials. Although they exhibit various catalytic activities and stabilities during water oxidation, Na 2 CoP 2 O 7 with distorted cobalt tetrahedral geometry shows high activity comparable to that of amorphous cobalt phosphate under neutral conditions, along with high structural stability. First-principles calculations suggest that the surface reorganization by the pyrophosphate ligand induces a highly distorted tetrahedral geometry, where water molecules can favourably bind, resulting in a low overpotential (1/40.42 €‰eV). Our findings emphasize the importance of local cobalt coordination in the catalysis and suggest the possible effect of polyanions on the water oxidation chemistry. © Macmillan Publishers Limited. All rights reservedko
dc.languageENGko
dc.publisherNATURE PUBLISHING GROUPko
dc.titleCoordination tuning of cobalt phosphates towards efficient water oxidation catalystko
dc.typeARTICLEko
dc.type.rimsAko
dc.identifier.wosid000363017500024ko
dc.identifier.scopusid2-s2.0-84941711770ko
dc.identifier.pid344null
dc.description.wostc72-
dc.date.scptcdate2018-10-01-
dc.identifier.doi10.1038/ncomms9253ko
dc.identifier.bibliographicCitationNATURE COMMUNICATIONS, v.6, no., pp.8253 -ko
dc.date.tcdate2018-10-01-
dc.description.scptc91-
dc.type.docTypeArticle-
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Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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