Preparation of nano-structured cathode for protonic ceramic fuel cell by bead-milling method

Hiroyuki Oda, Takehiro Yoneda, Takaaki Sakai, Yuji Okuyama, Hiroshige Matsumoto

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We developed a nano-structured Sm0.5Sr0.5CoO 3 (SSC55) cathode from slurry dispersed nanoparticles using a planetary bead-milling method. In order to evaluate the cathode performance, the cathode resistances and the protonic ceramic fuel cell properties were examined using electrochemical cells with a BaCe0.6Zr0.2Y 0.2O3 - δ electrolyte disk at intermediate temperatures. The cells with a milled SSC55 cathode showed lower cathode resistance and higher power density compared to those with the SSC55 cathode prepared from the conventional method. The improvement is attributed to an increase in the cathode reaction sites caused by the use of the smaller particles and a good adhesion to the electrolyte surface.

Original languageEnglish
Pages (from-to)388-391
Number of pages4
JournalSolid State Ionics
Volume262
DOIs
Publication statusPublished - Sep 1 2014

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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