A top-down strategy for the synthesis of mesoporous Ba0.5Sr0.5Co0.8Fe0.2O3−δ as a cathode precursor for buffer layer-free deposition on stabilized zirconia electrolyte with a superior electrochemical performance

A top-down method was applied for synthesising mesoporous Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) by treating it with H2O2. The SOFC with the as-obtained BSCF cathode delivered a high electrochemical performance.331