Приказ основних података о документу

dc.creatorJović, Borka
dc.creatorJović, Vladimir
dc.creatorLačnjevac, Uroš
dc.creatorGajić Krstajić, Ljiljana
dc.creatorKrstajić, Nedeljko
dc.date.accessioned2018-07-25T11:56:20Z
dc.date.accessioned2023-02-03T10:51:27Z
dc.date.available2018-07-25T11:56:20Z
dc.date.available2023-02-03T10:51:27Z
dc.date.issued2015
dc.identifier.issn0360-3199
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/5793
dc.description.abstractThe hydrogen evolution reaction (HER) was studied at electrodeposited Ni and Ni-(Ebonex/Ir) composite coatings in 1 mol dm-3 NaOH solution at 25 °C. The Ni-(Ebonex/Ir) coatings were electrodeposited from a nickel Watts type bath containing different amounts of suspended Ebonex/Ir(30 wt.%) powder particles (0-2 g dm-3) onto a Ni 40 mesh substrate. The electrodes were investigated by cyclic voltammetry (CV), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), electrochemical impedance spectroscopy (EIS) and polarization measurements. It was shown that the roughness factor of coatings increased to a maximum value of 27 with increasing the concentration of Ebonex/Ir particles in the deposition bath, while that of a pure Ni coating was found to be 3.2. In the whole potential range of the HER only one Tafel slope of about -120 mV dec-1 was observed at all polarization curves. Considerably improved intrinsic catalytic activity for the HER compared to pure Ni was achieved with the composite coating deposited from the bath with the lowest concentration of Ebonex/Ir particles (0.1 g dm-3). Further enhancement of the apparent catalytic activity for the HER of Ni-(Ebonex/Ir) composite coatings obtained at higher concentrations of suspended Ebonex/Ir particles in the bath was attributed only to the increase of their electrochemically active surface area. © 2015 Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.en
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172054/RS//
dc.rightsrestrictedAccess
dc.sourceInternational Journal of Hydrogen Energy
dc.subjectalkaline solution
dc.subjectH2 evolution
dc.subjectintrinsic activity
dc.subjectIr catalyst
dc.subjectNi composite coatings
dc.titleNi-(Ebonex-supported Ir) composite coatings as electrocatalysts for alkaline water electrolysis. Part I: Hydrogen evolutionen
dc.typearticleen
dc.rights.licenseARR
dc.citation.epage10490
dc.citation.issue33
dc.citation.rankM21
dc.citation.spage10480
dc.citation.volume40
dc.identifier.doi10.1016/j.ijhydene.2015.06.127
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_dais_3530
dc.identifier.scopus2-s2.0-84938199080
dc.identifier.wos000359170400011
dc.type.versionpublishedVersion


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Приказ основних података о документу