Journal of Applied Electrochemistry

, Volume 46, Issue 11, pp 1109–1118 | Cite as

Core–shell Pd–P@Pt nanoparticles as efficient catalysts for electrooxidation of formic acid

  • Jing Xu
  • Ming Zhao
  • Shin-ichi Yamaura
  • Tienan Jin
  • Naoki Asao
Research Article
Part of the following topical collections:
  1. Fuel cells

Abstract

Tailoring the composition and structure is an effective approach for improving the properties of electrocatalysts in fuel cells. In this study, the core–shell Pd–P@Pt nanoparticles were synthesized using a seed-mediated growth method and applied to the formic acid oxidation reaction like electrocatalysts. The core–shell structure was confirmed by transmission electron microscopy, elemental mapping analyses, energy-dispersive X-ray spectroscopy line scan, inductively coupled plasma mass spectrometry, and X-ray photoelectron spectroscopy. The catalytic activity and durability were evaluated by cyclic voltammetry, electrochemically active surface area loss, and chronoamperometry. The obtained particles exhibit higher catalytic activity and durability compared to those of Pt/C and Pt black commercial reference catalysts due to the synergistic effect between the Pd–P core and the Pt shell. In addition, the Pt shell inhibits the corrosion of Pd in the acidic solution, resulting in good stability.

Graphical Abstract

Keywords

Electrochemistry Nanoparticles Phosphorus Formic acid Fuel cells 

Supplementary material

10800_2016_997_MOESM1_ESM.doc (1.2 mb)
Supplementary material 1 (DOC 1275 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.WPI-Advanced Institute for Materials ResearchTohoku UniversitySendaiJapan
  2. 2.School of Chemical EngineeringChina University of Mining and TechnologyXuzhouChina
  3. 3.Institute for Materials ResearchTohoku UniversitySendaiJapan
  4. 4.Faculty of Textile Science and TechnologyShinshu UniversityUedaJapan

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