Fabrication of PdCo Bimetallic Nanoparticles Anchored on Three-Dimensional Ordered N-Doped Porous Carbon as an Efficient Catalyst for Oxygen Reduction Reaction

Hairong Xue, Jing Tang, Hao Gong, Hu Guo, Xiaoli Fan, Tao Wang, Jianping He, Yusuke Yamauchi

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

PdCo bimetallic nanoparticles (NPs) anchored on three-dimensional (3D) ordered N-doped porous carbon (PdCo/NPC) were fabricated by an in situ synthesis. Within this composite, N-doped porous carbon (NPC) with an ordered mesoporous structure possesses a high surface area (659.6 m2 g-1), which can facilitate electrolyte infiltration. NPC also acts as a perfect 3D conductive network, guaranteeing fast electron transport. In addition, homogeneously distributed PdCo alloy NPs (∼15 nm) combined with the doping of the N element can significantly improve the electrocatalytic activity for the oxygen reduction reaction (ORR). Due to the structural and material superiority, although the weight percentage of PdCo NPs (∼8 wt%) is much smaller than that of commercial Pt/C (20 wt%), the PdCo/NPC catalyst exhibits similar excellent electrocatalytic activity; however, its superior durability and methanol-tolerance ability of the ORR are as great as those of commercial Pt/C in alkaline media.

Original languageEnglish
Pages (from-to)20766-20771
Number of pages6
JournalACS Applied Materials and Interfaces
Volume8
Issue number32
DOIs
StatePublished - 17 Aug 2016
Externally publishedYes

Keywords

  • direct methanol fuel cell
  • electrocatalyst
  • in situ synthesis
  • oxygen reduction reaction
  • PdCo bimetallic nanoparticles
  • three-dimensional N-doped porous carbon

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