Publicación:
EFFECT OF MG AND CA PRECIPITATES IN THE STABILITY OF FE-MN-NI ANODES USED IN ALKALINE SEAWATER ELECTROLYSIS

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dc.creatorCHRISTOPHER GONZALO SALVO MEDALLA
dc.date2024
dc.date.accessioned2025-01-10T15:49:51Z
dc.date.available2025-01-10T15:49:51Z
dc.date.issued2024
dc.description.abstractTHIS WORK INVESTIGATES THE EFFECT OF MG AND CA PRECIPITATES ON THE ELECTROCHEMICAL PERFORMANCE OF FE-MN-NI-BASED ANODES PRODUCED THROUGH POWDER METALLURGY IN SIMULATED AND REAL ALKALINE SEAWATER. THE ELECTRODES THAT EXHIBITED THE BEST PERFORMANCE IN SIMULATED SEAWATER WERE THOSE CONTAINING 60 %FE-40 %NI AND 15 %FE-15 %MN-70 %FE, BOTH WITH AN OVERPOTENTIAL FOR THE OXYGEN EVOLUTION REACTION OF 370 MV AT 10 MA/CM2 AND TAFEL SLOPES OF 45 AND 53 MV/DEC, RESPECTIVELY. HOWEVER, WHEN REAL ALKALINE SEAWATER WAS USED AS ELECTROLYTE, THE ELECTROCATALYTIC ABILITY OF THESE ELECTRODES DECREASED; THE PRESENCE OF CA2+ WAS IDENTIFIED AS A SIGNIFICANT FACTOR PROMOTING PITTING CORROSION. THE STUDY CONCLUDES THAT A COMPREHENSIVE INVESTIGATION INTO THE INDIVIDUAL EFFECT OF SEAWATER IONS ON ELECTRODE PERFORMANCE IS NECESSARY.
dc.formatapplication/pdf
dc.identifier.doi10.1016/j.jelechem.2024.118422
dc.identifier.issn1873-2569
dc.identifier.issn1572-6657
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/13851
dc.languagespa
dc.publisherJOURNAL OF ELECTROANALYTICAL CHEMISTRY
dc.relation.uri10.1016/j.jelechem.2024.118422
dc.rightsPUBLICADA
dc.subjectSeawater electrolysis
dc.subjectOxygen evolution reaction
dc.subjectAlkaline electrolysis
dc.titleEFFECT OF MG AND CA PRECIPITATES IN THE STABILITY OF FE-MN-NI ANODES USED IN ALKALINE SEAWATER ELECTROLYSIS
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA MECANICA
ubb.SedeCONCEPCIÓN
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