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Infiltration of cerium into a NiO–YSZ tubular substrate for solid oxide reversible cells using a LSGM electrolyte film
Journal of Materials Chemistry A ( IF 11.9 ) Pub Date : 2020-11-08 , DOI: 10.1039/d0ta08564b
Zhe Tan 1, 2, 3, 4, 5 , Jun Tae Song 1, 2, 3, 4, 5 , Atsushi Takagaki 1, 2, 3, 4, 5 , Tatsumi Ishihara 1, 2, 3, 4, 5
Affiliation  

A NiO–Y2O3 stabilized ZrO2 (NiO–YSZ) supported tubular solid oxide cell, which consists of a La0.9Sr0.1Ga0.8Mg0.2O3−δ (LSGM) dip-coated electrolyte film and Sm0.5Sr0.5CoO3−δ (SSC) air electrode, was prepared and its power generation and electrolysis performance in the intermediate temperature range were investigated. Compared to other rare earth oxides studied, infiltration of Ce nitrate into the substrate was the most effective for increasing cell performance in the case of 2 M infiltration. Moreover, it was found that the infiltration of a higher concentration of the Ce solution increased the maximum power density, because both IR loss and overpotential were significantly decreased. The maximum power density of the cell was 0.95 and 0.42 W cm−2 at 873 and 773 K, respectively at 3 M Ce nitrate infiltration. The long-term stability of the cell was also measured by using the cell infiltrated with 1.5 M Ce, and a stable power generation performance was demonstrated up to 100 h. The steam electrolysis performance of the cell using Ce infiltration was further studied and it was found that Ce also contributes to higher current density in SOEC operation and 1.07 A cm−2 at 1.6 V was achieved at 873 K using 2 M Ce infiltration.

中文翻译:

使用LSGM电解质膜将铈浸入固体氧化物可逆电池的NiO-YSZ管状基底中

甲的NiO-Y 2 ö 3稳定的ZrO 2(氧化镍-YSZ)所支持的管状固体氧化物电池,它由一个位于La的0.90.10.80.2 ø 3- δ(LSGM)浸涂电解质膜和Sm 0.50.5 CoO 3− δ制备了(SSC)空气电极,并研究了其在中等温度范围内的发电和电解性能。与研究的其他稀土氧化物相比,在2 M浸渗的情况下,硝酸铈向基质的浸渗对于提高电池性能最有效。此外,发现较高浓度的Ce溶液的渗透增加了最大功率密度,因为IR损耗和过电势均明显降低。电池的最大功率密度为0.95和0.42 W cm -2分别在3 M Ce硝酸盐渗透下在873 K和773 K下发生。还通过使用渗透了1.5 M Ce的电池测量了电池的长期稳定性,并证明了长达100小时的稳定发电性能。进一步研究了使用Ce渗透的电解池的蒸汽电解性能,发现Ce也有助于SOEC操作中的更高电流密度,使用2 M Ce渗透在873 K下在1.6 V时达到1.07 A cm -2
更新日期:2020-11-17
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