The preparation and electrochemical performance of Lu3+/Gd3+ co-doped ceria-chloride composite electrolyte

The preparation and electrochemical performance of Lu3+/Gd3+ co-doped ceria-chloride composite electrolyte

In this study, Ce0.8Gd0.1Lu0.1O2-α was synthesized by a sol-gel method. And Ce0.8Gd0.1Lu0.1O2-α-(Na/K)Cl composite electrolyte was prepared at 750 °C. The phase composition, microstructure, conductivity and fuel cell properties of the composite were studied at 500–750 °C. The XRD results showed that...

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Veröffentlicht in:International journal of electrochemical science 2021-01, Vol.16 (1), p.151054, Article 151054
Hauptverfasser: Ma, Jilong, Zhang, Mengjuan, Wang, Lili, Meng, Xiangsong, Wang, Wenjian, Tang, Jian, Shao, Guoquan
Format: Artikel
Sprache:eng
Schlagworte:
CeO2
Composite
Conductivity
Electrolyte
Fuel cell
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Zusammenfassung:In this study, Ce0.8Gd0.1Lu0.1O2-α was synthesized by a sol-gel method. And Ce0.8Gd0.1Lu0.1O2-α-(Na/K)Cl composite electrolyte was prepared at 750 °C. The phase composition, microstructure, conductivity and fuel cell properties of the composite were studied at 500–750 °C. The XRD results showed that no chemical reaction occurred between chloride and Ce0.8Gd0.1Lu0.1O2-α. The log σ ~ log (pO2) results showed that Ce0.8Gd0.1Lu0.1O2-α-(Na/K)Cl is a pure ionic conductor in an oxidizing atmosphere. The performance of oxygen concentration discharge cell further showed that Ce0.8Gd0.1Lu0.1O2-α-(Na/K)Cl is an excellent oxygen ion conductor in an oxidizing atmosphere.
ISSN:1452-3981
1452-3981
DOI:10.20964/2021.01.56