Yanru Yang, Wenze Li, Siyuan Yang, Xuesong Shen, Zongyin Han, Hao Yu, Meng Gao, Kunhua Wang, Zhibing Yang
This work develops a novel perovskite Sr2 FeNi0.35 Mo0.65 O6-δ (SFN0.35 M) simultaneously using as a fuel electrode and oxygen electrode in a reversible solid oxide cell (RSOC). SFN0.35 M shows outstanding electrocatalytic activity for hydrogen oxidation, hydrogen evolution, oxygen reduction, and oxygen evolution. In situ exsolution and dissolution of Fe-Ni alloy nanoparticles in SFN0.35 M is revealed. In a reducing atmosphere, SFN0.35 M shows in situ exsolution of Fe-Ni alloy nanoparticles, and then the Fe-Ni alloy is reoxidized into SFN0...
April 16, 2024: ACS Applied Materials & Interfaces