Thermal and Electrical Properties of Highly Dense Ceramic Materials Based on Co-doped LaYO3

Kasyanova, Anna V.; Tarutina, Liana R.; Lyagaeva, Julia G.; Vdovin, G. K.; Medvedev, Dmitry; Demin, A.

doi:10.1007/s11837-019-03498-5

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Determination Of Electronic Conductivity With a Background O...1

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Cited by 6 publications

(1 citation statement)

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“…Many perovskite-related PCMs ( i.e. , oxides based on BaCeO 3 , 62 BaZrO 3 , 63 LaYO 3 , 64 and LaYbO 3 , ref. 65 and 66) exhibit ionic conductivity under reducing atmospheres along with the p-type conductivity that appears under oxidizing conditions.…”

Section: Determination Of Electronic Conductivity With a Background O...mentioning

confidence: 99%

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Zvonareva

Medvedev

et al. 2022

Energy Environ. Sci.

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137

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Section: Determination Of Electronic Conductivity With a Background O...mentioning

confidence: 99%

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Zvonareva

Medvedev

et al. 2022

Energy Environ. Sci.

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137

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High-temperature transport properties of BaSn1−xScxO3−δ ceramic materials as promising electrolytes for protonic ceramic fuel cells

et al. 2022

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Protonic ceramic fuel cells (PCFCs) offer a convenient means for electrochemical conversion of chemical energy into electricity at intermediate temperatures with very high efficiency. Although BaCeO3- and BaZrO3-based complex oxides have been positioned as the most promising PCFC electrolytes, the design of new protonic conductors with improved properties is of paramount importance. Within the present work, we studied transport properties of scandium-doped barium stannate (Sc-doped BaSnO3). Our analysis included the fabrication of porous and dense BaSn1−xScxO3−δ ceramic materials (0 ⩽ x ⩽ 0.37), as well as a comprehensive analysis of their total, ionic, and electronic conductivities across all the experimental conditions realized under the PCFC operation: both air and hydrogen atmospheres with various water vapor partial pressures (p(H2O)), and a temperature range of 500–900 °C. This work reports on electrolyte domain boundaries of the undoped and doped BaSnO3 for the first time, revealing that pure BaSnO3 exhibits mixed ionic-electronic conduction behavior under both oxidizing and reducing conditions, while the Sc-doping results in the gradual improvement of ionic (including protonic) conductivity, extending the electrolyte domain boundaries towards reduced atmospheres. This latter property makes the heavily-doped BaSnO3 representatives attractive for PCFC applications.

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Tribological behaviors of vacuum hot-pressed ceramic composites with enhanced cyclic oxidation and corrosion resistance

Liang

Tian

et al. 2020

Ceramics International

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Thermal and Electrical Properties of Highly Dense Ceramic Materials Based on Co-doped LaYO3

Cited by 6 publications

References 45 publications

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

High-temperature transport properties of BaSn1−xScxO3−δ ceramic materials as promising electrolytes for protonic ceramic fuel cells

Tribological behaviors of vacuum hot-pressed ceramic composites with enhanced cyclic oxidation and corrosion resistance

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