dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorIPEN CNEN SP
dc.contributorUniv Fed Amazonas
dc.date.accessioned2018-11-26T17:48:56Z
dc.date.available2018-11-26T17:48:56Z
dc.date.created2018-11-26T17:48:56Z
dc.date.issued2018-02-01
dc.identifierInternational Journal Of Electrochemical Science. Belgrade: Esg, v. 13, n. 2, p. 1893-1904, 2018.
dc.identifier1452-3981
dc.identifierhttp://hdl.handle.net/11449/164057
dc.identifier10.20964/2018.02.58
dc.identifierWOS:000429100400054
dc.identifier9620122455708223
dc.identifier0000-0003-4069-509X
dc.description.abstractThe performance of platinum-copper electrocatalysts synthesized in different ratios (100:0, 90:10, 70:30, 50:50, and 0:100), using a borohydride reduction method for electrochemical oxidation of different fuels, was evaluated in an alkaline direct alcohol fuel cell. X-ray diffraction of Pt/C and PtCu/C showed a face-centered cubic structure (fcc) of the platinum and its alloys. Transmission electron microscopy analysis allowed us to see a good dispersion of metallic particles with some regions with clusters of nanoparticles, for all the synthesised materials in the presence of copper. Cyclic voltammetry and chronoamperometry tests demonstrated that the PtCu/C (50:50) and PtCu/C (70:30) electrocatalysts exhibited the highest activity and stability for the glycerol and ethanol oxidation, respectively. The tests made in fuel cells, directly fed with glycerol and ethanol, presented the PtCu/C (90:10) electrocatalyst as the most effective on the oxidation reaction of the fuels when compared with Pt/C and Cu/C.
dc.languageeng
dc.publisherEsg
dc.relationInternational Journal Of Electrochemical Science
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectDirect ethanol fuel cell
dc.subjectdirect glycerol fuel cell
dc.subjectPtCu electrocatalysts
dc.subjectalkaline fuel cell
dc.titleGlycerol and Ethanol Oxidation in Alkaline Medium Using PtCu/C Electrocatalysts
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución