Low Pt loading amorphous alloys applied as anodes and the effect of different proton exchange membranes for PEMFCS

  • N. Ruiz*
  • , A. R. Pierna
  • , J. Barroso
  • , M. Sanchez
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In this work low-loaded platinum bi-metallic amorphous alloys based on Ni59Nb40Pt0.6X0.4 (X = Ru, Sn) were studied as electro-catalytic anodes in PEMFCs. The electro-catalysts were produced by Mechanical Alloying (MA) using a planetary ball-mill during 40 h and used as anodes onto Nafion® (DuPont) perfluorinated membranes (Nafion® 117, Nafion® 115 and Nafion ® XL). In addition, two active areas of fuel cells were used namely 9 and 25 cm2. These electro-catalysts were characterized by both physical and chemical techniques, such as Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD) and Energy Dispersive X-ray Spectroscopy (EDX). Concerning the performance towards the Hydrogen Oxidation Reaction (HOR), the results showed that 25 cm2 of active area of fuel cell with Ni 59Nb40Pt0.6Ru0.4 alloy and the Membrane Electrode Assembly (MEA) based on the Nafion® 115 membrane exhibited the best catalytic activity (2083.59 A g-1 Pt), while for the Ni59Nb40Pt0.6Sn0.4 catalyst the Nafion® XL membrane was more suitable (1570.82 A g-1 Pt).

Original languageEnglish
Pages (from-to)16269-16275
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume38
Issue number36
DOIs
Publication statusPublished - 13 Dec 2013
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Amorphous alloys
  • Electro-catalysts
  • MEAs
  • Nafion
  • PEMFC

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