High CO tolerance of Pt nanoparticles synthesized by sodium borohydride in a time-domain NMR spectrometer

dc.creatorRAMOS, A.S.
dc.creatorSANTOS, M.C.L.
dc.creatorGODOI, C.M.
dc.creatorQUEIROZ, L.C. de
dc.creatorNANDENHA, J.
dc.creatorFONTES, E.H.
dc.creatorBRITO, W.R.
dc.creatorMACHADO, M.B.
dc.creatorNETO, A.O.
dc.creatorSOUZA, R.F.B. de
dc.date2020
dc.date2020-12-09T12:34:38Z
dc.date2020-12-09T12:34:38Z
dc.date.accessioned2023-09-28T14:17:04Z
dc.date.available2023-09-28T14:17:04Z
dc.identifier0360-3199
dc.identifierhttp://200.136.52.105/handle/123456789/31611
dc.identifier43
dc.identifier45
dc.identifier10.1016/j.ijhydene.2020.06.105
dc.identifier0000-0001-8745-3421
dc.identifier69.78
dc.identifier88.50
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9001834
dc.descriptionThe CO poisoning effect was overcome using a novel synthesis method. This method consists of using sodium borohydride reducing agent assisted by magnetic field and radiofrequency pulses in the time-domain NMR spectrometer. This synthesis was useful to disperse the Pt nanoparticles over the carbon support and to compress the lattice strain of the Pt crystalline structure. Besides that, Pt/C MFP90?? showed a multi-CO oxidation component in cyclic voltammetry, and this can avoid the poisoning effect by creating a large availability of CO species to be adsorbed, desorbed, and re-adsorbed. Pt/C MFP90?? has also shown the best performance in the PEMFC regarding H2 and CO + H2 experiments.
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFAPESP: 14/09087-4; 14/50279-4; 17/11937
dc.descriptionCNPq: 300816/2016-2; 429727/2018-6
dc.format22973-22978
dc.relationInternational Journal of Hydrogen Energy
dc.rightsopenAccess
dc.subjectcarbon compounds
dc.subjectcarbon monoxide
dc.subjectplatinum
dc.subjectcarbon
dc.subjectfuel cells
dc.subjectnanoparticles
dc.subjectborohydrides
dc.subjectsodium compounds
dc.subjectnmr spectra
dc.subjectnuclear magnetic resonance
dc.titleHigh CO tolerance of Pt nanoparticles synthesized by sodium borohydride in a time-domain NMR spectrometer
dc.typeArtigo de peri??dico
dc.coverageI


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