000057764 001__ 57764
000057764 005__ 20200221144225.0
000057764 0247_ $$2doi$$a10.3390/nano6100187
000057764 0248_ $$2sideral$$a96999
000057764 037__ $$aART-2016-96999
000057764 041__ $$aeng
000057764 100__ $$aCalderón, J.C.
000057764 245__ $$aOxidation of CO and methanol on Pd-Ni catalysts supported on different chemically-treated carbon nanofibers
000057764 260__ $$c2016
000057764 5060_ $$aAccess copy available to the general public$$fUnrestricted
000057764 5203_ $$aIn 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 generateoxygen 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 thenanoparticles supported on carbon black (catalyst Pd-Ni CB 1:2). From the CO oxidation at different temperatures, the activation energy Eact for this reaction was determined. These values indicated a high tolerance of the catalysts toward the CO poisoning, especially in the case of the catalystssupported on the non-chemically treated carbon nanofibers. On the other hand, apparent activation energy Eap for the methanol oxidation was also determined finding—as a rate determining step—the COads diffusion to the OHads 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 particlesizes, which is an important factor in the obtaining of low CO oxidation activation energies.
000057764 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/CTQ2011-28913-C02-01$$9info:eu-repo/grantAgreement/ES/MINECO/ENE2014-52518-C2-1-R
000057764 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000057764 590__ $$a3.553$$b2016
000057764 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b58 / 275 = 0.211$$c2016$$dQ1$$eT1
000057764 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b33 / 87 = 0.379$$c2016$$dQ2$$eT2
000057764 592__ $$a0.0$$b2016
000057764 593__ $$aMaterials Science (miscellaneous)$$c2016
000057764 593__ $$aChemical Engineering (miscellaneous)$$c2016
000057764 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000057764 700__ $$aRáfales, M.R.
000057764 700__ $$aNieto-Monge, M.
000057764 700__ $$0(orcid)0000-0002-0661-9889$$aPardo, J.I.$$uUniversidad de Zaragoza
000057764 700__ $$aMoliner, R.
000057764 700__ $$aLázaro, M.J.
000057764 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física
000057764 773__ $$g6, 10 (2016), 6100187 [18 pp.]$$pNanomaterials (Basel)$$tNanomaterials$$x2079-4991
000057764 8564_ $$s5774161$$uhttps://zaguan.unizar.es/record/57764/files/texto_completo.pdf$$yVersión publicada
000057764 8564_ $$s103892$$uhttps://zaguan.unizar.es/record/57764/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000057764 909CO $$ooai:zaguan.unizar.es:57764$$particulos$$pdriver
000057764 951__ $$a2020-02-21-13:17:15
000057764 980__ $$aARTICLE