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dc.contributor.authorHyun, Su Yeonko
dc.contributor.authorShanmugam, Sangarajuko
dc.date.accessioned2018-08-29T05:51:55Z-
dc.date.available2018-08-29T05:51:55Z-
dc.date.created2018-08-22-
dc.date.created2018-08-22-
dc.date.issued2018-08-
dc.identifier.citationACS Omega, v.3, no.8, pp.8621 - 8630-
dc.identifier.issn2470-1343-
dc.identifier.urihttp://hdl.handle.net/20.500.11750/9232-
dc.description.abstractA unique three-dimensional (3D) structure consisting of a hierarchical nickel-cobalt dichalcogenide spinel nanostructure is investigated for its electrocatalytic properties at benign neutral and alkaline pH and applied as an air cathode for practical zinc-air batteries. The results show a high oxygen evolution reaction catalytic activity of nickel-cobalt sulfide nanosheet arrays grown on carbon cloth (NiCo2S4 NS/CC) over the commercial benchmarking catalyst under both pH conditions. In particular, the NiCo2S4 NS/CC air cathode shows high discharge capacity, a narrow potential gap between discharge and charge, and superior cycle durability with reversibility, which exceeds that of commercial precious metal-based electrodes. The excellent performance of NiCo2S4 NS/CC in water electrolyzers and zinc-air batteries is mainly due to highly exposed electroactive sites with a rough surface, morphology-based advantages of nanosheet arrays, good adhesion between NiCo2S4 and the conducting carbon cloth, and the active layer formed of nickel-cobalt (oxy)hydroxides during water splitting. These results suggest that NiCo2S4 NS/CC could be a promising candidate as an efficient electrode for high-performance water electrolyzers and rechargeable zinc-air batteries. © 2018 American Chemical Society.-
dc.languageEnglish-
dc.publisherAmerican Chemical Society-
dc.subjectBIFUNCTIONAL ELECTROCATALYST-
dc.subjectWATER ELECTROLYSIS-
dc.subjectNEUTRAL PH-
dc.subjectHIGHLY EFFICIENT-
dc.subjectNANOWIRE ARRAYS-
dc.subjectDOPED CARBON-
dc.subjectNI FOAM-
dc.subjectALKALINE-
dc.subjectHYDROGEN-
dc.subjectOXIDATION-
dc.titleHierarchical Nickel-Cobalt Dichalcogenide Nanostructure as an Efficient Electrocatalyst for Oxygen Evolution Reaction and a Zn-Air Battery-
dc.typeArticle-
dc.identifier.doi10.1021/acsomega.8b01375-
dc.identifier.wosid000440617900020-
dc.identifier.scopusid2-s2.0-85050984982-
dc.type.localArticle(Overseas)-
dc.type.rimsART-
dc.description.journalClass1-
dc.contributor.localauthorShanmugam, Sangaraju-
dc.identifier.citationVolume3-
dc.identifier.citationNumber8-
dc.identifier.citationStartPage8621-
dc.identifier.citationEndPage8630-
dc.identifier.citationTitleACS Omega-
dc.type.journalArticleArticle-
dc.description.isOpenAccessY-


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