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  • Cheon, Jae Yeong (author)

Ordered mesoporous porphyrinic carbons with very high electrocatalytic activity for the oxygen reduction reaction

  • Article/chapterEnglish2013

Publisher, publication year, extent ...

  • 2013-09-23
  • Springer Science and Business Media LLC,2013
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-95081
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-95081URI
  • https://doi.org/10.1038/srep02715DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • AuthorCount:14;
  • The high cost of the platinum-based cathode catalysts for the oxygen reduction reaction (ORR) has impeded the widespread application of polymer electrolyte fuel cells. We report on a new family of non-precious metal catalysts based on ordered mesoporous porphyrinic carbons (M-OMPC; M = Fe, Co, or FeCo) with high surface areas and tunable pore structures, which were prepared by nanocasting mesoporous silica templates with metalloporphyrin precursors. The FeCo-OMPC catalyst exhibited an excellent ORR activity in an acidic medium, higher than other non-precious metal catalysts. It showed higher kinetic current at 0.9 V than Pt/C catalysts, as well as superior long-term durability and MeOH-tolerance. Density functional theory calculations in combination with extended X-ray absorption fine structure analysis revealed a weakening of the interaction between oxygen atom and FeCo-OMPC compared to Pt/C. This effect and high surface area of FeCo-OMPC appear responsible for its significantly high ORR activity.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Kim, Taeyoung (author)
  • Choi, YongMan (author)
  • Jeong, Hu Young (author)
  • Kim, Min Gyu (author)
  • Sa, Young Jin (author)
  • Kim, Jaesik (author)
  • Lee, Zonghoon (author)
  • Yang, Tae-Hyun (author)
  • Kwon, Kyungjung (author)
  • Terasaki, OsamuStockholms universitet,Avdelningen för oorganisk kemi och strukturkemi,Korea Advanced Institute of Science and Technology, Republic of Korea(Swepub:su)osate (author)
  • Park, Gu-Gon (author)
  • Adzic, Radoslav R. (author)
  • Joo, Sang Hoon (author)
  • Stockholms universitetAvdelningen för oorganisk kemi och strukturkemi (creator_code:org_t)

Related titles

  • In:Scientific Reports: Springer Science and Business Media LLC3, s. 2715-2045-2322

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