Study of the Hydrogen Evolution Reaction Using Ionic Liquid/Cobalt Porphyrin Systems as Electro and Photoelectrocatalysts

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dc.contributor.authorGidi, Leyla
dc.contributor.authorHonores, Jessica
dc.contributor.authorIbarra, Jose
dc.contributor.authorArce, Roxana
dc.contributor.authorAguirre, M. J.
dc.contributor.authorRamirez, Galo
dc.date.accessioned2024-01-10T13:44:30Z
dc.date.available2024-01-10T13:44:30Z
dc.date.issued2020
dc.description.abstractIn this work, the design and manufacture of graphite paste (Gr) electrodes is carried out, including N-octylpyridinium hexafluorophosphate (OPyPF6) ionic liquid (IL) as binder and modification with Co-octaethylporphyrin (Co), in order to study the hydrogen evolution reaction (HER) in the absence and presence of light. The system is characterized by XRD and FESEM-EDX (Field Emission Scanning Electron Microscopy with Energy Dispersive X-Ray Spectroscopy), confirming the presence of all the components of the system in the electrode surface. The studies carried out in this investigation confirm that a photoelectrocatalytic system towards HER is obtained. The system is stable, efficient and easy to prepare. Through cyclic voltammetry and electrochemical impedance spectroscopy, was determined that these electrodes improve their electrochemical and electrical properties upon the addition of OPyPF6. These effects improve even more when the systems are modified with Co porphyrin. It is also observed that when the systems are irradiated at 395 nm, the redox process is favored in energy terms, as well as in its electrical properties. Through gas chromatography, it was determined that the graphite paste electrode in the presence of ionic liquid and porphyrin (Gr/IL/Co) presents a high turnover number (TON) value (6342 and 6827 in presence of light) in comparison to similar systems reported.
dc.description.funderFONDECYT
dc.description.funderDoctoral Scholarship CONICYT
dc.description.funderDicyt-Usach
dc.fechaingreso.objetodigital2024-05-23
dc.format.extent12 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3390/catal10020239
dc.identifier.eissn2073-4344
dc.identifier.urihttps://doi.org/10.3390/catal10020239
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78903
dc.identifier.wosidWOS:000519998900097
dc.information.autorucFacultad de Química y de Farmacia; Honores Sotelo, Jessica Scarlet; S/I; 217991
dc.issue.numero2
dc.language.isoen
dc.nota.accesoContenido completo
dc.publisherMDPI
dc.revistaCATALYSTS
dc.rightsacceso abierto
dc.subjecthydrogen evolution reaction
dc.subjectphotoelectrocatalysis
dc.subjectionic liquids
dc.subjectmetalloporphyrins
dc.subjectCARBON-PASTE ELECTRODES
dc.subjectCOPPER
dc.subjectCOBALT(II)
dc.subjectPALLADIUM
dc.subjectSENSOR
dc.subjectWATER
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleStudy of the Hydrogen Evolution Reaction Using Ionic Liquid/Cobalt Porphyrin Systems as Electro and Photoelectrocatalysts
dc.typeartículo
dc.volumen10
sipa.codpersvinculados217991
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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