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dc.contributor.authorLiang, Hanfeng
dc.contributor.authorGandi, Appala
dc.contributor.authorXia, Chuan
dc.contributor.authorHedhili, Mohamed N.
dc.contributor.authorAnjum, Dalaver H.
dc.contributor.authorSchwingenschlögl, Udo
dc.contributor.authorAlshareef, Husam N.
dc.date.accessioned2017-10-30T08:39:48Z
dc.date.available2017-10-30T08:39:48Z
dc.date.issued2017-04-17
dc.identifier.citationLiang H, Gandi AN, Xia C, Hedhili MN, Anjum DH, et al. (2017) Amorphous NiFe-OH/NiFeP Electrocatalyst Fabricated at Low Temperature for Water Oxidation Applications. ACS Energy Letters 2: 1035–1042. Available: http://dx.doi.org/10.1021/acsenergylett.7b00206.
dc.identifier.issn2380-8195
dc.identifier.issn2380-8195
dc.identifier.doi10.1021/acsenergylett.7b00206
dc.identifier.urihttp://hdl.handle.net/10754/625981
dc.description.abstractWater splitting driven by electricity or sunlight is one of the most promising ways to address the global terawatt energy needs of future societies; however, its large-scale application is limited by the sluggish kinetics of the oxygen evolution reaction (OER). NiFe-based compounds, mainly oxides and hydroxides, are well-known OER catalysts and have been intensively studied; however, the utilization of the synergistic effect between two different NiFe-based materials to further boost the OER performance has not been achieved to date. Here, we report the rapid conversion of NiFe double hydroxide into metallic NiFeP using PH3 plasma treatment and further construction of amorphous NiFe hydroxide/NiFeP/Ni foam as efficient and stable oxygen-evolving anodes. The strong electronic interactions between NiFe hydroxide and NiFeP significantly lower the adsorption energy of H2O on the hybrid and thus lead to enhanced OER performance. As a result, the hybrid catalyst can deliver a geometrical current density of 300 mA cm–2 at an extremely low overpotential (258 mV, after ohmic-drop correction), along with a small Tafel slope of 39 mV decade–1 and outstanding long-term durability in alkaline media.
dc.description.sponsorshipResearch 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/acsenergylett.7b00206
dc.titleAmorphous NiFe-OH/NiFeP Electrocatalyst Fabricated at Low Temperature for Water Oxidation Applications
dc.typeArticle
dc.contributor.departmentComputational Physics and Materials Science (CPMS)
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentFunctional Nanomaterials and Devices Research Group
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSurface Science
dc.identifier.journalACS Energy Letters
kaust.personLiang, Hanfeng
kaust.personGandi, Appala
kaust.personXia, Chuan
kaust.personHedhili, Mohamed N.
kaust.personAnjum, Dalaver H.
kaust.personSchwingenschlögl, Udo
kaust.personAlshareef, Husam N.
dc.date.published-online2017-04-17
dc.date.published-print2017-05-12


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