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dc.contributor.authorColodrero, Rosario M.P.
dc.contributor.authorVílchez-Cózar, Álvaro
dc.contributor.authorBazaga García, Montse
dc.contributor.authorOlivera Pastor, Pascual
dc.contributor.authorLópez González, María del Mar
dc.contributor.authorCabeza, Aurelio
dc.contributor.authorRio, Carmen del
dc.date.accessioned2021-09-28T09:08:45Z
dc.date.available2021-09-28T09:08:45Z
dc.date.created2021-09-27
dc.date.issued2021
dc.identifier.citationhttps://www.europhosphonates.iic.cas.cz/workshop/ti/es_ES
dc.identifier.urihttps://hdl.handle.net/10630/22900
dc.descriptionProyecto Nacional PID2019-110249RB-I00, Ayudas para contratación de Investigadores Docteres de la Junta de Andalucía PAIDI2020, Plan Propio de Investigación de la Universidad de Málaga para la contratación predoctoral (PRE2020-094459).es_ES
dc.description.abstractAlthough Pt and Ru/Ir-based noble metal materials are the state-of-the-art electrocatalysts for energy storage and conversion, their applications are still limited by their scarcity and high price. Therefore, the design of low-cost and efficient electrocatalysts is highly desired and full of challenge. Herein we report the electrochemical properties of several metal phosphonates derived from the reaction of (R,S)-2-hydroxyphosphonoacetic acid (HPAA) with transition metals (M = Fe2+, Co2+, Mn2+, Ni2+), including their corresponding solid solutions. By pyrolytic treatment under N2 or 5% H2/Ar, materials having a wide range of compositions (phosphate, pyrophosphate, phosphides…) have been prepared and their electrochemical properties tested for OER and ORR and HER. Pyrolyzing in N2 at 500 °C, led to amorphous pyrophosphates, with Fe2+/Co2+ solid solutions displaying the lowest overpotential for the OER, whereas the Mn2+ derivative showed the best performance for the ORR. At higher temperature, pyrolyzed materials were crystalline pyrophosphates (N2) or metal phosphides (H2-Ar). In general, the latter compounds displayed better performances for the HER, Ni2P being the most active electrocatalyst. Addition of reduced graphene oxide (rGO) significantly improved the behaviour of the electrocatalysts for OER and ORR.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectQuímica organometálicaes_ES
dc.subject.otherCoordination polymerses_ES
dc.subject.otherMetal phosphonateses_ES
dc.subject.otherElectrocatalystses_ES
dc.subject.otherOxygen evolution reactiones_ES
dc.subject.otheroxygen reduction reactiones_ES
dc.subject.otherHydrogen evolution reactiones_ES
dc.subject.otherReduced graphene oxidees_ES
dc.titleElectrocatalytic properties of metal hydroxy-phosphonoacetate derivatives for OER, ORR and HERes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Cienciases_ES
dc.relation.eventtitle3rd European Workshop on Metal Phosphonates and Phosphinateses_ES
dc.relation.eventplaceChâteau Liblice, Czech Republices_ES
dc.relation.eventdate16 - 18, Septiembre de 2021es_ES


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