Polypyrrole-derived Mesoporous Nitrogen-doped Carbons with Intrinsic Catalytic Activity in the Oxygen Reduction Reaction

نویسندگان

  • Marta Sevilla
  • Linghui Yu
  • Tim Patrick Fellinger
  • Antonio B. Fuertes
  • Maria-Magdalena Titirici
چکیده

to 0.33 S cm, a necessary property for electrochemical applications, while a mesoporous structure reduces mass transport limitations. These characteristics are further combined with a high N content (3.55 – 5.45 wt.%). As a result, the as-prepared materials exhibit an enhanced intrinsic electrocatalytic activity towards the oxygen reduction reaction (ORR). They exhibit an onset potential of ~ -90 to -70 mV vs. Ag/AgCl and a current density in the lower potential regime that exceeds that of a commercial platinum 15

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تاریخ انتشار 2014