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dc.contributor.authorCalderón Gómez, Juan Carlos-
dc.contributor.authorRíos Ráfales, Miguel-
dc.contributor.authorNieto-Monge, María Jesús-
dc.contributor.authorPardo, Juan Ignacio-
dc.contributor.authorMoliner Álvarez, Rafael-
dc.contributor.authorLázaro Elorri, María Jesús-
dc.date.accessioned2017-01-04T08:53:02Z-
dc.date.available2017-01-04T08:53:02Z-
dc.date.issued2016-10-18-
dc.identifierdoi: 10.3390/nano6100187-
dc.identifier.citationNanomaterials 6(10): 187 (2016)-
dc.identifier.urihttp://hdl.handle.net/10261/142132-
dc.description.abstractIn this work, palladium-nickel nanoparticles supported on carbon nanofibers were synthesized, with metal contents close to 25 wt % and Pd:Ni atomic ratios near to 1:2. These catalysts were previously studied in order to determine their activity toward the oxygen reduction reaction. Before the deposition of metals, the carbon nanofibers were chemically treated in order to generate oxygen and nitrogen groups on their surface. Transmission electron microscopy analysis (TEM) images revealed particle diameters between 3 and 4 nm, overcoming the sizes observed for the nanoparticles supported on carbon black (catalyst Pd-Ni CB 1:2). From the CO oxidation at different temperatures, the activation energy E<sub>act</sub> for this reaction was determined. These values indicated a high tolerance of the catalysts toward the CO poisoning, especially in the case of the catalysts supported on the non-chemically treated carbon nanofibers. On the other hand, apparent activation energy E<sub>ap</sub> for the methanol oxidation was also determined finding—as a rate determining step—the CO<sub>ads</sub> diffusion to the OH<sub>ads</sub> for the catalysts supported on carbon nanofibers. The results here presented showed that the surface functional groups only play a role in the obtaining of lower particle sizes, which is an important factor in the obtaining of low CO oxidation activation energies.-
dc.description.sponsorshipThe authors want to thank the Spanish Ministry of Economy and Competitiveness and FEDER for financial support under the projects ENE2014-52518-C2-1-R and CTQ2011-28913-C02-01. We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI).-
dc.publisherMultidisciplinary Digital Publishing Institutees_ES
dc.relationMINECO/ICTI2013-2016/ENE2014-52518-C2-1-R-
dc.rightsopenAccess-
dc.titleOxidation of CO and methanol on Pd-Ni catalysts supported on different chemically-treated carbon nanofibers-
dc.typeartículo-
dc.identifier.doihttp://dx.doi.org/10.3390/nano6100187-
dc.date.updated2017-01-04T08:53:02Z-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)-
dc.contributor.funderEuropean Commission-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003339es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
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