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Replacing oxygen evolution reaction by glycerol electrooxidation on Rh modified Ni(OH)2/C for energy-efficient hydrogen production

dc.rights.licenseopenen_US
dc.contributor.authorXAVIER, Farlon F.S.
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorCUNHA, Alexandre
dc.contributor.authorNAPPORN, Teko
dc.contributor.authorOLIVI, Paulo
dc.date.accessioned2024-04-19T07:07:17Z
dc.date.available2024-04-19T07:07:17Z
dc.date.issued2023-09
dc.identifier.issn0360-3199en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199233
dc.description.abstractEnOxygen evolution reaction (OER) is a key reaction for the development of green and sus-tainable energy system based in the production of hydrogen by electrolysis. However, the water splitting required a high overpotential for the oxygen evolution reaction. In this work we investigated the use of the Glycerol Electrooxidation Reaction (GEOR) in alkaline solu-tions on Rh/C, Ni(OH)2/C and Rhx{Ni(OH)2}y/C nanocomposites instead of water as a reagent in the anodic reaction in electrolyzers as a way to reduce the cell overpotential and obtain energy savings. The electrocatalysts were prepared by microwave-assisted alcohol reduc-tion method and characterized by X-ray diffraction. The catalysts presented particles with fcc structure for Rh/C, a hexagonal structure for (Ni(OH)2/C), and (Rh0.3{Ni(OH)2}0.7/C) and (Rh0.5{Ni(OH)2}0.5/C) presented mixed structures with brucite and a a-Ni(OH)2/C structure. The electrochemical performance of Rh0.3{Ni(OH)2}0.7/C presented superior density current at low potential in comparison to the other studied materials. The potential value deter-mined for GEOR at 10 mA cm-2 was nearly 1.29 V vs. RHE in a 0.5 mol L-1 glycerol solution that is 0.3 V less than the value obtain Rh/C in the absence on the organic species. The analysis of the products generated after bulk electrolysis using high-performance liquid chromatography demonstrated that at 1.50 V vs. RHE the main reaction products were and tartronate, glyceraldehyde and oxalate, depending on the employed catalytic material. These results demonstrated that value-added products could be obtained as a promising way to valorize by the glycerol electrooxidation besides the energy saving during the electrolysis for the hydrogen production
dc.language.isoENen_US
dc.subject.enGlycerol electrooxidation; Electrolysis; Nickel-rhodium electrodes
dc.title.enReplacing oxygen evolution reaction by glycerol electrooxidation on Rh modified Ni(OH)2/C for energy-efficient hydrogen production
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.ijhydene.2023.04.267en_US
dc.subject.halChimieen_US
bordeaux.journalInternational Journal of Hydrogen Energyen_US
bordeaux.page31091-31100en_US
bordeaux.volume48en_US
bordeaux.hal.laboratoriesCBMN : Chimie & de Biologie des Membranes & des Nano-objets - UMR 5248en_US
bordeaux.issue80en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionCNRSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-04285807
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
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