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Yingjie Niu, Dr. Fengli Liang, Dr. Wei Zhou, Dr. Jaka Sunarso, Prof. Zhonghua Zhu and Prof. Zongping Shao A Three-Dimensional Highly Interconnected Composite Oxygen Reduction Reaction Electrocatalyst prepared from a Core–shell Precursor ChemSusChem 4

Version of Record online: 28 OCT 2011 | DOI: 10.1002/cssc.201100254

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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.

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