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dc.contributor.authorCañamero-Cebrián, Fernando
dc.contributor.authorVílchez-Cózar, Álvaro
dc.contributor.authorCabeza-Díaz, Aurelio 
dc.contributor.authorPérez-Colodrero, Rosario Mercedes 
dc.contributor.authorBazaga-García, Montse
dc.contributor.authorOlivera-Pastor, Pascual 
dc.date.accessioned2023-01-26T13:14:50Z
dc.date.available2023-01-26T13:14:50Z
dc.date.created2023
dc.date.issued2023
dc.identifier.urihttps://hdl.handle.net/10630/25803
dc.descriptionPóster presentado en el XXX Simposio del GE3Ces_ES
dc.description.abstractMetal phosphonates (MPs), a subclass of coordination polymers, result from the bonding of phosphonic acids (RPO32-) with metal ions, giving rise to an uniformly dispersion of the metal sites at the atomic scale. This characteristic allows the preparation of metal-phosphorous-based nano-carbon composites by a simple one-step pyrolysis, what makes them very attractive precursors of Non-Precious Metal Catalysts (NPMCs). Herein, we report the synthesis, characterization and electrochemical properties of three cobalt(II) coordination polymers derived from the glycine-N,N-bis(methylenenphosphonic acid) (BPMGLY), with formula [Co(C4H9O8NP2(H2O)2]·nH2O (n=0, 2). In contrast with the zero-dimensional structure of [Co(C4H9O8NP2(H2O)2]·2H2O (Co-BPMGLY-I), the two new polymorphs synthesized, Co(C4H9O8NP2(H2O)2 (Co-BPMGLY-II and Co-BPMGLY-III), whose structures have been solved from powder diffraction data, show two-dimensional frameworks with different connectivity between the Co2+ ions and the ligand within the sheets. These MPs were used as precursors of NPMCs by pyrolyzing them under 5%-H2/Ar at different temperatures. The electrochemical behavior of the resulting compounds, mainly crystalline cobalt pyrophosphates and/or phosphides, is fully studied regarding to the Oxygen Evolution and Reduction Reactions (OER and ORR, respectively) as well as Hydrogen Evolution Reaction (HER). Cobalt phosphide (CoP) derived from Co-BPMGLY-I displayed the best results, showing an overpotential of 156 mV for HER.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Proyectos nacionales MAT2016-77648-R y PID2019-110249RB-I00es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectQuímica inorgánicaes_ES
dc.subjectMineralogíaes_ES
dc.subjectCobaltoes_ES
dc.subjectOxígenoes_ES
dc.subject.otherCoordination polymerses_ES
dc.subject.otherMetal phosphonateses_ES
dc.subject.otherGlycine-N,N-bis(methylenenphosphonic acid) (BPMGLY)es_ES
dc.subject.otherGlyphosinees_ES
dc.subject.otherCobalt phosphideses_ES
dc.subject.otherCobalt pyrophosphateses_ES
dc.subject.otherOxygen Evolution Reaction (OER)es_ES
dc.subject.otherOxygen Reduction Reaction (ORR)es_ES
dc.subject.otherHydrogen Evolution Reaction (HER)es_ES
dc.titleSynthesis, structural characterization and electrocatalytic properties of cobalt phosphides and pyrophosphates derived from glyphosinees_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Cienciases_ES
dc.relation.eventtitleXXX Simposio del grupo GE3C de la RSEQes_ES
dc.relation.eventplaceBenidorm (España)es_ES
dc.relation.eventdate17/01/2023 - 19/01/2023es_ES
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*


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