Mostrar el registro sencillo del ítem

dc.contributor.authorGonzález Buch, Cristina
dc.contributor.authorHerraiz Cardona, Isaac
dc.contributor.authorOrtega, Emma
dc.contributor.authorGarcía-Antón, J.
dc.contributor.authorPérez-Herranz, Valentín
dc.date.accessioned2016-12-19T18:45:24Z
dc.date.available2016-12-19T18:45:24Z
dc.date.issued2016
dc.identifier.citationGONZÁLEZ-BUCH, C., et al. Study of the catalytic activity of 3D macroporous Ni and NiMo cathodes for hydrogen production by alkaline water electrolysis. Journal of Applied Electrochemistry, 2016, p. 1-13.ca_CA
dc.identifier.issn0021-891x
dc.identifier.issn1572-8838
dc.identifier.urihttp://hdl.handle.net/10234/165108
dc.description.abstractPlatinum is the electrode material with the highest catalytic activity for the hydrogen evolution reaction (HER). However, its high cost and scarcity are the two major barriers for its usage in the industrial alkaline water electrolysis, which requires searching for other cheaper and more available materials with good catalytic activity. Ni-based materials have attracted more and more attention due to their good activity for the HER and sufficient corrosion resistance in alkaline solutions at considerable low cost. According to the Brewer intermetallic bonding theory, molybdenum alloyed with nickel (hypo–hyper-d-electronic transition metal) could improve the intrinsic catalytic activity for the HER. In this work, Ni and NiMo metallic coatings were galvanostatically electrodeposited on a stainless steel AISI 304 substrate by means of the double-template electrochemical process. The evaluation of these electrodes as H2-evolving cathodes was done in 30 % wt. KOH by pseudo-steady-state polarization curves and electrochemical impedance spectroscopy (EIS) at different temperatures. From Tafel curves results, it is shown that the NiMo electrodes have higher catalytic activity than Ni. On the other hand, from EIS results, it is possible to conclude that the NiMo electrodes showed higher intrinsic catalytic activity for HER than the pure Ni electrode as a consequence of alloying hypo–hyper-d-electronic transition metals.ca_CA
dc.description.sponsorShipThe authors acknowledge the support of Gener- alitat Valenciana (PROMETEO/2010/023) and Universidad Poli- técnica de Valencia (PAID-06-10-2227). We wish to thank the Electron Microscopy Service of the UPV.ca_CA
dc.format.extent13 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherSpringer Verlagca_CA
dc.relation.isPartOfJournal of Applied Electrochemistry, 2016ca_CA
dc.rights© Springer Science+Business Media Dordrecht 2016. "The final publication is available at Springer via http://dx.doi.org/10.1007/s10800-016-0970-0"ca_CA
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/*
dc.subjectNiMo alloysca_CA
dc.subjectHERca_CA
dc.subjectSurface roughness factorca_CA
dc.subjectCatalytic activityca_CA
dc.subjectAlkaline water electrolysisca_CA
dc.titleStudy of the catalytic activity of 3D macroporous Ni and NiMo cathodes for hydrogen production by alkaline water electrolysisca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1007/s10800-016-0970-0
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_CA
dc.relation.publisherVersionhttp://link.springer.com/article/10.1007/s10800-016-0970-0ca_CA


Ficheros en el ítem

FicherosTamañoFormatoVer

No hay ficheros asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem