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dc.contributor.authorLiang, Hanfeng
dc.contributor.authorGandi, Appala
dc.contributor.authorAnjum, Dalaver H.
dc.contributor.authorWang, Xianbin
dc.contributor.authorSchwingenschlögl, Udo
dc.contributor.authorAlshareef, Husam N.
dc.date.accessioned2017-01-09T11:52:21Z
dc.date.available2017-01-09T11:52:21Z
dc.date.issued2016-11-09
dc.identifier.citationLiang H, Gandi AN, Anjum DH, Wang X, Schwingenschlögl U, et al. (2016) Plasma-Assisted Synthesis of NiCoP for Efficient Overall Water Splitting. Nano Letters 16: 7718–7725. Available: http://dx.doi.org/10.1021/acs.nanolett.6b03803.
dc.identifier.issn1530-6984
dc.identifier.issn1530-6992
dc.identifier.doi10.1021/acs.nanolett.6b03803
dc.identifier.urihttp://hdl.handle.net/10754/622660
dc.description.abstractEfficient water splitting requires highly active, earth-abundant, and robust catalysts. Monometallic phosphides such as NiP have been shown to be active toward water splitting. Our theoretical analysis has suggested that their performance can be further enhanced by substitution with extrinsic metals, though very little work has been conducted in this area. Here we present for the first time a novel PH plasma-assisted approach to convert NiCo hydroxides into ternary NiCoP. The obtained NiCoP nanostructure supported on Ni foam shows superior catalytic activity toward the hydrogen evolution reaction (HER) with a low overpotential of 32 mV at 10 mA cm in alkaline media. Moreover, it is also capable of catalyzing the oxygen evolution reaction (OER) with high efficiency though the real active sites are surface oxides in situ formed during the catalysis. Specifically, a current density of 10 mA cm is achieved at overpotential of 280 mV. These overpotentials are among the best reported values for non-noble metal catalysts. Most importantly, when used as both the cathode and anode for overall water splitting, a current density of 10 mA cm is achieved at a cell voltage as low as 1.58 V, making NiCoP among the most efficient earth-abundant catalysts for water splitting. Moreover, our new synthetic approach can serve as a versatile route to synthesize various bimetallic or even more complex phosphides for various applications.
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b03803
dc.subjectDFT
dc.subjectelectrocatalysis
dc.subjectHER
dc.subjectNiCoP
dc.subjectOER
dc.subjectplasma synthesis
dc.titlePlasma-Assisted Synthesis of NiCoP for Efficient Overall Water Splitting
dc.typeArticle
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentSafety & Facility
dc.identifier.journalNano Letters
kaust.personLiang, Hanfeng
kaust.personGandi, Appala
kaust.personAnjum, Dalaver H.
kaust.personWang, Xianbin
kaust.personSchwingenschlögl, Udo
kaust.personAlshareef, Husam N.
dc.date.published-online2016-11-09
dc.date.published-print2016-12-14


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