Anchoring a Co/2-methylimidazole complex on ion-exchange resin and its transformation to Co/N-doped carbon as an electrocatalyst for the ORR

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dc.contributorElectrocatálisis y Electroquímica de Polímeroses_ES
dc.contributorMateriales Carbonosos y Medio Ambientees_ES
dc.contributor.authorZhu, Yexin-
dc.contributor.authorMiyake, Koji-
dc.contributor.authorShu, Yasuhiro-
dc.contributor.authorGabe, Atsushi-
dc.contributor.authorHirota, Yuichiro-
dc.contributor.authorUchida, Yoshiaki-
dc.contributor.authorTanaka, Shunsuke-
dc.contributor.authorMorallon, Emilia-
dc.contributor.authorCazorla-Amorós, Diego-
dc.contributor.authorNishiyama, Norikazu-
dc.contributor.otherUniversidad de Alicante. Departamento de Química Físicaes_ES
dc.contributor.otherUniversidad de Alicante. Departamento de Química Inorgánicaes_ES
dc.contributor.otherUniversidad de Alicante. Instituto Universitario de Materialeses_ES
dc.identifier.citationCatalysis Science & Technology. 2019, 9: 578-582. doi:10.1039/c8cy02210kes_ES
dc.identifier.issn2044-4753 (Print)-
dc.identifier.issn2044-4761 (Online)-
dc.description.abstractSynthesizing high-activity metal/heteroatom-co-doped carbon (M/H–C) electrocatalysts for the oxygen reduction reaction (ORR) is critical for the commercialization of fuel cells, but remains challenging because of the difficulty in making highly dispersed (M/H–C) electrocatalysts. Herein, a commercial ion-exchange resin, Amberlyst 15, is used as a support, and Co/2-methylimidazole is anchored on the ion-exchange site of the support to obtain Co/N/Amb as the precursor of the M/H–C electrocatalyst. After the precursor is pyrolyzed and converted into Co/N/C materials, it is activated with CO2, and the obtained material (act-Co/N/C) exhibits remarkable ORR activity with a high onset potential of 0.943 V (vs. the reversible hydrogen electrode) and an excellent kinetic current density comparable to commercial 5 wt% Pt/C in an alkaline medium. The favorable activity is mainly attributed to the ultra-dispersed CoNx and high porosity of act-Co/N/C. Our synthetic strategy could be applied to the preparation of other well-dispersed M/H–C materials. This work opens a new direction in the synthetic strategy of carbon materials.es_ES
dc.description.sponsorshipFinancial support from MINECO (CTQ2015-66080-R) and HEIWA NAKAJIMA FOUNDATION is acknowledged.es_ES
dc.publisherRoyal Society of Chemistryes_ES
dc.rights© The Royal Society of Chemistry 2019es_ES
dc.subjectCo/2-methylimidazole complexes_ES
dc.subjectIon-exchange resines_ES
dc.subjectCo/N-doped carbones_ES
dc.subject.otherQuímica Físicaes_ES
dc.subject.otherQuímica Inorgánicaes_ES
dc.titleAnchoring a Co/2-methylimidazole complex on ion-exchange resin and its transformation to Co/N-doped carbon as an electrocatalyst for the ORRes_ES
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