000086458 001__ 86458
000086458 005__ 20200103150049.0
000086458 0247_ $$2doi$$a10.3390/en11040831
000086458 0248_ $$2sideral$$a115307
000086458 037__ $$aART-2018-115307
000086458 041__ $$aeng
000086458 100__ $$aSebastián, David
000086458 245__ $$aNitrogen doped ordered mesoporous carbon as support of ptru nanoparticles for methanol electro-oxidation
000086458 260__ $$c2018
000086458 5060_ $$aAccess copy available to the general public$$fUnrestricted
000086458 5203_ $$aThe low oxidation kinetics of alcohols and the need for expensive platinum group metals are still some of the main drawbacks for the commercialization of energy efficient direct alcohol fuel cells. In this work, we investigate the influence of nitrogen doping of ordered mesoporous carbon (CMK) as support on the electrochemical activity of PtRu nanoparticles. Nitrogen doping procedures involve the utilization of pyrrole as both nitrogen and carbon precursor by means of a templating method using mesoporous silica. This method allows obtaining carbon supports with up to 14 wt. % nitrogen, with an effective introduction of pyridinic, pyrrolic and quaternary nitrogen. PtRu nanoparticles were deposited by sodium formate reduction method. The presence of nitrogen mainly influences the Pt:Ru atomic ratio at the near surface, passing from 50:50 on the bare (un-doped) CMK to 70:30 for the N-doped CMK catalyst. The electroactivity towards the methanol oxidation reaction (MOR) was evaluated in acid and alkaline electrolytes. The presence of nitrogen in the support favors a faster oxidation of methanol due to the enrichment of Pt at the near surface together with an increase of the intrinsic activity of PtRu nanoparticles.
000086458 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/ENE2014-52158-C2-1-R$$9info:eu-repo/grantAgreement/ES/MINECO/ENE2014-52158-C2-2-R
000086458 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000086458 590__ $$a2.707$$b2018
000086458 591__ $$aENERGY & FUELS$$b56 / 103 = 0.544$$c2018$$dQ3$$eT2
000086458 592__ $$a0.612$$b2018
000086458 593__ $$aControl and Optimization$$c2018$$dQ1
000086458 593__ $$aElectrical and Electronic Engineering$$c2018$$dQ1
000086458 593__ $$aRenewable Energy, Sustainability and the Environment$$c2018$$dQ1
000086458 593__ $$aEnergy Engineering and Power Technology$$c2018$$dQ1
000086458 593__ $$aEnergy (miscellaneous)$$c2018$$dQ1
000086458 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000086458 700__ $$aNieto-Monge, María Jesús
000086458 700__ $$aPérez-Rodríguez, Sara
000086458 700__ $$aPastor, Elena
000086458 700__ $$aLázaro, Mª Jesús
000086458 773__ $$g11, 831 (2018), 11040831 [16 pp.]$$pENERGIES$$tEnergies$$x1996-1073
000086458 8564_ $$s20565272$$uhttps://zaguan.unizar.es/record/86458/files/texto_completo.pdf$$yVersión publicada
000086458 8564_ $$s103066$$uhttps://zaguan.unizar.es/record/86458/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000086458 909CO $$ooai:zaguan.unizar.es:86458$$particulos$$pdriver
000086458 951__ $$a2020-01-03-13:58:16
000086458 980__ $$aARTICLE