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Molten salt synthesis of Nb-doped (La, Sr)FeO3 as the oxygen electrode for reversible solid oxide cells

By Guan, Chengzhi; Wang, Yudong; Chen, Kongfa; Xiao, Guoping; Lin, Xiao; Zhou, Jing; Song, Sanzhao; Wang, Jian-Qiang; Zhu, Zhiyuan; Zhou, Xiao-Dong
Published in Materials Letters 2019

Abstract

A novel molten salt method was employed to synthesize 10% Nb doped La0.6Sr0.4FeO3?? (LSFN). The as-synthesized powders were pure and adopted a porous structure. Using LSFN as the oxygen electrode for a reversible solid oxide cell, the button cell exhibited a peak power density of 0.79 W cm?2 in H2 and an electrolysis current density of 0.89 A cm?2 at 1.3 V in 50% CO2/50% H2 at 800

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