A three-dimensional highly interconnected composite oxygen reduction reaction electrocatalyst prepared from a core-shell precursor
Journal article published in 2011 by
Yingjie Niu,
Fengli Liang,
Wei Zhou 
,
Jaka Sunarso,
Zhonghua Zhu,
Zongping Shao
,
Jaka Sunarso,
Zhonghua Zhu,
Zongping Shao
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Abstract
Getting intimate: A 3D interconnected Bi0.5Sr0.5FeO3−δ (BSF)–Ag electrocatalyst is prepared from a BSF–AgNO3 core–shell precursor in one step. The nanometer-sized Ag enhances the sintering process, enabling an optimum cathode microstructure and good cathode-to-electrolyte attachment upon firing at 850 °C. A solid-oxide fuel cell based on this cathode shows a near 100 % peak power density enhancement at 550 °C.