Rh-decorated Ptiro<inf>x</inf> Nanoparticles For Glycerol Electrooxidation: Searching For A Stable And Active Catalyst

dc.date2016
dc.date2016-06-03T20:13:18Z
dc.date2016-06-03T20:13:18Z
dc.date.accessioned2018-03-29T01:32:27Z
dc.date.available2018-03-29T01:32:27Z
dc.identifier
dc.identifierApplied Catalysis B: Environmental. Elsevier, v. 181, p. 445 - 455, 2016.
dc.identifier9263373
dc.identifier10.1016/j.apcatb.2015.08.021
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84939605626&partnerID=40&md5=63899d80b2de24ff645e900cae82d9b1
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/238018
dc.identifier2-s2.0-84939605626
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1304679
dc.descriptionWe report a fast method of producing rhodium-decorated platinum nanoparticles (NPs) containing iridium oxides (IrO<inf>x</inf>) to be used in the glycerol electrooxidation reaction. We synthesize PtIrO<inf>x</inf>/C electrocatalysts of different atomic compositions dispersed on Carbon Vulcan XC-72R® by using the fast polyol method assisted by microwaves. Afterwards, PtIrO<inf>x</inf>/C was potentiodynamically decorated by Rh (Rh/PtIrO<inf>x</inf>/C). The NPs are characterized by energy dispersive X-ray analysis, X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy. The electrooxidation of glycerol was investigated in acid medium by cyclic voltammetry and chronoamperometry. The electrochemical stability of Rh/PtIrO<inf>x</inf>/C NPs was evaluated by following a degradation test protocol, which consists in exhaustive cyclic voltammetries. Our results show that the presence of iridium oxides in the architecture of platinum enhances the electrochemical stability of the catalyst by avoiding agglomeration effects. Moreover, the presence of rhodium catalyzes the glycerol electrooxidation reaction. These results help understanding the role of Rh and IrO<inf>x</inf> in the glycerol electrooxidation and provide new insights for designing nanomaterials with improved stability and activity. © 2015 Elsevier B.V.
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dc.languageen
dc.publisherElsevier
dc.relationApplied Catalysis B: Environmental
dc.rightsfechado
dc.sourceScopus
dc.titleRh-decorated Ptiro<inf>x</inf> Nanoparticles For Glycerol Electrooxidation: Searching For A Stable And Active Catalyst
dc.typeArtículos de revistas
dc.typeReview


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