Low-temperature protonic ceramic membrane fuel cells (PCMFCs) with SrCo0.9Sb0.1O3-delta cubic perovskite cathode

Hanping Ding, Bin Lin, Yinzhu Jiang, Songlin Wang, Daru Fang, Yingchao Dong, Shanwen Tao, Ranran Peng, Xingqiu Liu, Guangyao Meng

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The SrCo0.9Sb0.1O3-delta (SCS) composite oxide with cubic perovskite structure was synthesized by a modified Pechini method and examined as a novel cathode for protonic ceramic membrane fuel cells (PCMFCs). At 700 degrees C and under open-circuit condition, symmetrical SCS cathode on BaZr0.1Ce0.7Y0.2O3-delta (BZCY7) electrolyte showed low polarization resistances (R-p) of 0.22 Omega cm(2) in air. A laboratory-sized tri-layer cell of NiO-BZCY7/BZCY7/SCS was operated from 500 to 700 degrees C with humidified hydrogen (similar to 3% H2O) as fuel and the static air as oxidant. A high open-circuit potential of 1.004V, a maximum power density of 259mWcm(-2), and a low polarization resistance of the electrodes of 0.14 Omega cm(2) was achieved at 700 degrees C.

Original languageEnglish
Pages (from-to)937-940
Number of pages4
JournalJournal of Power Sources
Volume185
Issue number2
DOIs
Publication statusPublished - 1 Dec 2008

Keywords

  • protonic ceramic membrane fuel cells
  • SrCo0.9Sb0.1O3-delta
  • cathode
  • cubic perovskite
  • BaZr0.1Ce0.7Y0.2O3-delta
  • doped baceo3
  • electrolytes

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