Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139578
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dc.contributor.authorLiang, Qinghuaen_US
dc.contributor.authorZhong, Lixiangen_US
dc.contributor.authorDu, Chengfengen_US
dc.contributor.authorLuo, Yuboen_US
dc.contributor.authorZheng, Yunen_US
dc.contributor.authorLi, Shuzhouen_US
dc.contributor.authorYan, Qingyuen_US
dc.date.accessioned2020-05-20T06:35:09Z-
dc.date.available2020-05-20T06:35:09Z-
dc.date.issued2018-
dc.identifier.citationLiang, Q., Zhong, L., Du, C., Luo, Y., Zheng, Y., Li, S., & Yan, Q. (2018). Achieving highly efficient electrocatalytic oxygen evolution with ultrathin 2D Fe-doped nickel thiophosphate nanosheets. Nano Energy, 47, 257-265. doi:10.1016/j.nanoen.2018.02.048en_US
dc.identifier.issn2211-2855en_US
dc.identifier.urihttps://hdl.handle.net/10356/139578-
dc.description.abstractExploring earth-abundant electrocatalysts to realize efficient oxygen evolution reaction (OER) is highly desired for developing sustainable electrochemical energy storage and conversion technologies. Herein, ultrathin single-crystalline Fe-doped nickel thiophosphate (NiPS3) nanosheets prepared in large scale by an easy solid-state method were demonstrated to be highly efficient OER electrocatalysts. The density functional theory (DFT) calculations reveal that the Fe-doping effectively decreases the energy barrier of OER path by reducing the binding of the oxygen-containing species on the surface of NiPS3. As such, the Fe-doped NiPS3 nanosheets show a low overpotential of 256 mV to reach a current density of 30 mA cm−2 and a small Tafel slope of 46 mV dec−1. To our knowledge, this is one of the best OER electrocatalysts in alkaline medium to date. The in-depth mechanism study demonstrates that the in-situ formed Fe-doped nickel oxides/hydroxides shell, resulting from the surface oxidation during the OER process, not only may serve as favorable electrocatalytic species but also improves the chemical stability of the Fe-doped NiPS3 in alkaline electrolyte. This work provides a new perspective for designing highly efficient OER electrocatalysts based on the ternary two-dimensional layered metal thiophosphates.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.language.isoenen_US
dc.relation.ispartofNano Energyen_US
dc.rights© 2018 Elsevier Ltd. All rights reserved.en_US
dc.subjectEngineering::Materialsen_US
dc.titleAchieving highly efficient electrocatalytic oxygen evolution with ultrathin 2D Fe-doped nickel thiophosphate nanosheetsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen_US
dc.identifier.doi10.1016/j.nanoen.2018.02.048-
dc.identifier.scopus2-s2.0-85043363738-
dc.identifier.volume47en_US
dc.identifier.spage257en_US
dc.identifier.epage265en_US
dc.subject.keywords2D Nanomaterialsen_US
dc.subject.keywordsNiPS3 Nanosheetsen_US
item.fulltextNo Fulltext-
item.grantfulltextnone-
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