Electro-oxidation of ethanol in acid medium using carbon-supported PtRh nanoparticles with (100) preferential orientation

dc.creatorPEREIRA FILHO, N.G.
dc.creatorSOUZA, R.F.B.
dc.creatorRAMOS, A.S.
dc.creatorANTONIASSI, R.M.
dc.creatorOLIVEIRA NETO, A.
dc.creatorSPINACE, E.V.
dc.date2021
dc.date2022-03-14T17:30:28Z
dc.date2022-03-14T17:30:28Z
dc.date.accessioned2023-09-28T14:21:20Z
dc.date.available2023-09-28T14:21:20Z
dc.identifier1452-3981
dc.identifierhttp://repositorio.ipen.br/handle/123456789/32787
dc.identifier12
dc.identifier16
dc.identifier10.20964/2021.12.56
dc.identifier0000-0002-7011-8261
dc.identifier0000-0001-8745-3421
dc.identifier8.33
dc.identifier34.00
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9003006
dc.descriptionCarbon-supported PtRh nanoparticles with preferential (100) orientation was prepared by an alcohol-reduction process using KBr as a shape directing agent. The electrocatalysts were characterized by EDX (energy-dispersive X-ray analysis), XRD (X-ray diffraction) and TEM (Transmission electron microscopy). The electro-oxidation of ethanol was studied by cyclic voltammetry and chronoamperometry at room temperature in acid medium. On-line differential mass spectrometry experiments were performed on a single cell of a direct ethanol fuel cell (DEFC) at 60 0C and the anodic effluents were analyzed by ATR-FTIR. PtRh/C (100) electrocatalyst showed cubic-like morphology and average nanoparticles size of 8 nm and provided superior DEFC performance (density power per Pt active area) and CO2 selectivity compared to polycrystalline PtRh/C and commercial Pt/C electrocatalysts.
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionCNPq: 305622/2020-0
dc.descriptionFAPESP: 17/11937-4; 18/04596-9; 18/04595-2
dc.format1-13
dc.relationInternational Journal of Electrochemical Science
dc.rightsopenAccess
dc.subjectnanoparticles
dc.subjectplatinum alloys
dc.subjectrhodium alloys
dc.subjectelectrocatalysts
dc.subjectethanol
dc.subjectfuel cells
dc.titleElectro-oxidation of ethanol in acid medium using carbon-supported PtRh nanoparticles with (100) preferential orientation
dc.typeArtigo de peri??dico
dc.coverageI


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