Stability and Transport Conductivity of Perovskite Type BaZrxCe0.8-xNd0.2O3-δ

Shi Jing Zhan; Xue Feng Zhu; Wei Ping Wang; Wei Shen Yang

doi:10.4028/www.scientific.net/AMR.554-556.404

Paper Titles

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High-Temperature Electrochemical Performance of Amorphous Nickel Hydroxide Codoped with Y and Mg
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Fabrication of Scattering Spheres-Embedding Three-Dimensional Ordered Macroporous Titania and Application in Dye-Sensitized Photoanode
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Preparation and Characterization of High-Density Li_0.99W_0.01FePO₄/C Composite Cathodes
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Stability and Transport Conductivity of Perovskite Type BaZr_xCe_0.8-xNd_0.2O_3-δ
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Corrosion Inhibition of Mild Steel by N-phenyl-1,4-phenylenediamine and its Schiff Base Derivatives in 1M HCl
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Synthesis and Electrochemical Performance of NiO/Co Composite Anode Material
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Influence of the Addition of Depressants during Grinding on Lead-Zinc Separation
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Corrosion Inhibition Study of a Heterocyclic Schiff Base Derived from Isatin
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Stability and Transport Conductivity of Perovskite Type BaZr_xCe_0.8-xNd_0.2O_3-δ

Abstract:

Solid oxide components such as electrolyte for solid oxide fuel cell require chemical stability and high conductivity. Substituting Zr for Ce in BaCe_0.8Nd_0.2O_3-δ improves the chemical stability but reduces conductivity. The objective of this work was to study the optimization of conductivity and chemical stability by changing the ratio of Ce to Zr in BZCN. Perovskite type BaZr_xCe_0.8-xNd_0.2O_3-δ (BZCN) powders were prepared by an EDTA–citric acid (EC) process. BaZr_xCe_0.8-xNd_0.2O_3-δ (x≥0.4) oxides show good chemical stability against carbon dioxide. The conductivities of sintered samples increased with the temperature and decrease with their Zr content. The good chemical stability and conductivity of BaZr_0.4Ce_0.4Nd_0.2O_3-δ is potential to be practically used with both high conductivity and good stability