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dc.contributor.author
Colli, Alejandro Nicolás
dc.contributor.author
Girault, Hubert
dc.contributor.author
Battistel, Alberto
dc.date.available
2020-05-11T19:32:46Z
dc.date.issued
2019-04
dc.identifier.citation
Colli, Alejandro Nicolás; Girault, Hubert; Battistel, Alberto; Non-Precious Electrodes for Practical Alkaline Water Electrolysis; MDPI; Materials; 12; 8; 4-2019; 1336-1354
dc.identifier.issn
1996-1944
dc.identifier.uri
http://hdl.handle.net/11336/104804
dc.description.abstract
Water electrolysis is a promising approach to hydrogen production from renewable energy sources. Alkaline water electrolyzers allow using non-noble and low cost materials. An analysis of common assumptions and experimental conditions (low concentrations, low temperature, low current densities and short-term experiments) found in the literature is reported. The steps to estimate the reaction overpotentials for hydrogen and oxygen reaction are reported and discussed. The results of some of the most investigated electrocatalysts, namely from the iron group elements (iron, nickel and cobalt) and chromium are reported. Past findings and recent progress in the development of efficient anode and cathode materials appropriate for large-scale water electrolysis are presented. The experimental work is done involving the direct-current electrolysis of highly concentrated potassium hydroxide solutions at temperatures between 30 and 100°C which are closer to industrial applications than what usually found in literature. Stable cell components and a good performance was achieved using as a cathode Raney nickel and stainless steel 316L as an anode by means of a monopolar cell at 75°C which ran for one month at 300 mA cm?2. Finally, the proposed catalysts show a total kinetic overpotential of circa 550 mV at 75 °C and 1 A cm?2.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ALKALINE WATER ELECTROLYSIS
dc.subject
RANEY-NI
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STAINLESS STEEL 316
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EQUILIBRIUM POTENTIAL
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IR CORRECTION
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WATER SPLITTING
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Non-Precious Electrodes for Practical Alkaline Water Electrolysis
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-05-04T20:58:04Z
dc.journal.volume
12
dc.journal.number
8
dc.journal.pagination
1336-1354
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Colli, Alejandro Nicolás. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
dc.description.fil
Fil: Girault, Hubert. Ecole Polytechnique Federale de Lausanne; Francia
dc.description.fil
Fil: Battistel, Alberto. Ecole Polytechnique Federale de Lausanne; Francia
dc.journal.title
Materials
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1996-1944/12/8/1336
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/ma12081336
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