Perforniance and durability of Pt/C catalyst for PEMFC modified by E-beam irradiation

Won Jan Jo, Hyein Hwang, Mincheol Choi, Dongwook Lim, Sang Eun Shim, Sung Hyeon Baeck, Byung Cheol Lee

Research output: Contribution to journalArticlepeer-review

Abstract

The influence of electron beam irradiation on the catalytic activity of Pt/C for polymer electrolyte membrane fuel cell (PEMFC) was investigated using a 2.5 MeV electron beam. Pt catalysts supported on Vulcan XC-72R were synthesized by a polyol method using chloroplatinic acid hydrate (H2PtCl6 -6H20) as a Pt precursor. Before and after e-beam irradiation, all synthesized catalysts were characterized by various physical and electrochemical techniques. Crystallinity change before and after e-beam irradiation was investigated by X-ray diffraction (XRD). Transmission electron microscopy (TEM) was utilized to examine the particle size of Pt. Pt loading amounts were determined by thermal gravimetric analysis (TGA). The catalytic activity for PEMFC was measured by both a half cell test and full cell test. The results show that the proper e-beam irradiation significantly improved the electrochemical activity of Pt/C.

Original languageEnglish
Pages (from-to)231-236
Number of pages6
JournalJournal of Korean Institute of Metals and Materials
Volume53
Issue number4
DOIs
StatePublished - 1 Apr 2015

Bibliographical note

Publisher Copyright:
Copyright © The Korean Institute of Metals and Materials.

Keywords

  • E-beam
  • Electrode
  • Pemfc
  • Pt/C catalyst

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