Cobalt free SrFe0.95Nb0.05O3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr0.1Ce0.7Y0.2O3−δ electrolyte

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

19 Scopus Citations
View graph of relations



Original languageEnglish
Pages (from-to)75-78
Journal / PublicationMaterials Letters
Online published24 Apr 2017
Publication statusPublished - 1 Aug 2017


A novel cobalt-free cubic perovskite SrFe0.95Nb0.05O3−δ (SFNb) was synthesized and investigated as cathode for proton-conducting solid state fuel cell (H-SOFC) with BaZr0.1Ce0.7Y0.2O3−δ (BZCY) as the electrolyte. Anode supported NiO-BZCY/BZCY/SFNb cell was fabricated and the performance was investigated. A peak power density of 538 mW cm−2 and a low polarization resistance of 0.23 Ω cm2 were obtained at 650 °C with hydrogen as the fuel and air as the oxidant. No obvious cell degradation was observed during the 50 h test. All the results indicated that the cobalt-free SFNb oxide is a promising cathode material for H-SOFCs.

Research Area(s)

  • Cathode, Ceramics, Cobalt-free, Cubic perovskite, Proton-conducting solid oxide fuel cell