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

doi:10.1021/acsami.6b05856

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

ACS Appl Mater Interfaces. 2016 Aug 17;8(32):20766-71. doi: 10.1021/acsami.6b05856. Epub 2016 Aug 8.

Authors

Hairong Xue¹, Jing Tang², Hao Gong¹, Hu Guo¹, Xiaoli Fan¹, Tao Wang¹, Jianping He¹, Yusuke Yamauchi^{2

3}

Affiliations

¹ College of Materials Science and Technology, Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, Nanjing University of Aeronautics and Astronautics , Nanjing 210016, P.R. China.
² International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
³ Australian Institute for Innovative Materials, University of Wollongong , North Wollongong, NSW 2500, Australia.

PMID: 27441490
DOI: 10.1021/acsami.6b05856

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 m(2) 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.

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