Single-walled carbon nanotube buckypapers as electrocatalyst supports for methanol oxidation

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dc.contributorElectrocatálisis y Electroquímica de Polímeroses
dc.contributor.authorSieben, Juan Manuel-
dc.contributor.authorAnsón Casaos, Alejandro-
dc.contributor.authorMartínez Fernández de Landa, María Teresa-
dc.contributor.authorMorallon, Emilia-
dc.contributor.otherUniversidad de Alicante. Departamento de Química Físicaes
dc.contributor.otherUniversidad de Alicante. Instituto Universitario de Materialeses
dc.identifier.citationJournal of Power Sources. 2013, 242: 7-14. doi:10.1016/j.jpowsour.2013.05.044es
dc.identifier.issn0378-7753 (Print)-
dc.identifier.issn1873-2755 (Online)-
dc.description.abstractThis work studies the use of various single-walled carbon nanotube (SWCNT) buckypapers as catalyst supports for methanol electro-oxidation in acid media. Buckypapers were obtained by vacuum filtration from pristine and oxidized SWCNT suspensions in different liquid media. Pt–Ru catalysts supported on the buckypapers were prepared by multiple potentiostatic pulses using a diluted solution of Pt and Ru salts (2 mM H2PtCl6 + 2 mM RuCl3) in acid media. The resulting materials were characterized via SEM, TEM, EDX and ICP-OES analysis. Well dispersed rounded nanoparticles between 2 and 15 nm were successfully electrodeposited on the SWCNT buckypapers. The ruthenium content in the bimetallic deposits was between 32 and 48 at. %, while the specific surface areas of the catalysts were in the range of 72–113 m2 g−1. It was found that the solvent used to prepare the SWCNT buckypaper films has a strong influence on the catalyst dispersion, particle size and metal loading. Cyclic voltammetry and chronoamperometry experiments point out that the most active electrodes for methanol electro-oxidation were prepared with the buckypaper supports that were obtained from SWCNT dispersions in
dc.description.sponsorshipJ.M.S. thanks Ministerio de Educación (SB2010-132). Financial support from MINECO and FEDER (MAT2010-15273, TEC 2010-15736 and PRI-PIBAR-2011-1 projects) and GV (ACOMP/2012/133 project) is
dc.subjectCarbon nanotube buckypaperes
dc.subjectPt–Ru catalystes
dc.subjectMethanol oxidationes
dc.subject.otherQuímica Físicaes
dc.titleSingle-walled carbon nanotube buckypapers as electrocatalyst supports for methanol oxidationes
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