Preparation, electrical and thermal properties of new anode material based on Ca-doped perovskite CeAlO3

Корона, Д. В.; Smelov, Alexey O.; Gilev, A.R.; Анимица, И. Е.; Pryakhina, V. I.

doi:10.1016/j.ijhydene.2023.03.431

Cited by 5 publications

(2 citation statements)

References 42 publications

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“…Ionic transport numbers were determined using the EMF technique in a concentration cell in the temperature range of 500 1C to 800 1C for KLM, KPM, and KNM compounds. 43,44 For the experiments, platinum electrodes in the form of a fine paste were applied to the pre-polished surface of sintered tablets. The electrodes were fired for 1 hour in air at a temperature of 700 1C.…”

Section: Electromotive Force (Emf) Methodsmentioning

confidence: 99%

Extensive research of conductivity in the fluorite-like KLn₄Mo₃O₁₅F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Orlova,

Morkhova,

Egorova

et al. 2024

Phys. Chem. Chem. Phys.

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Section: Electromotive Force (Emf) Methodsmentioning

confidence: 99%

Extensive research of conductivity in the fluorite-like KLn₄Mo₃O₁₅F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Orlova,

Morkhova,

Egorova

et al. 2024

Phys. Chem. Chem. Phys.

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“…Experimental procedure of electromotive force method.-Ionic transport numbers were measured by the EMF method in a concentration cell in the temperature range of 400 °C to 800 °C for pure MNO, CNO, ZNO. 33,34 Oxygen transport numbers were determined by the pO 2 gradient, for which the pressure of atmospheric air (pO 2 = 0.21 atm) was compared with the pressure of supplied oxygen (pO 2 = 1 atm). The measurement samples were pellets similar to those used to measure electrical conductivity by impedance spectroscopy.…”

Section: Methodsmentioning

confidence: 99%

Exhaustive Study of Electrical Conductivity in the MNb_2−xTixO_6–0.5x (M = Mg, Ca, Zn; x = 0, 0.1, 0.2) Columbites

Morkhova,

Koroleva,

Egorova

et al. 2024

ECS Adv.

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The CaNb2O6 and ZnNb2O6 columbites (Sp.gr. Pbcn) were studied as oxygen ion conductors both theoretically and experimentally. A theoretical approach included geometrical-topological analysis, bond valence site energy (BVSE) and density functional theory (DFT) calculations. The BVSE approach showed the possibility of pure oxygen ions diffusion with migration energies less than 0.45 eV in both compounds. However, DFT calculations indicated the possibility of diffusion of both anions and cations. The single-phases columbites were synthesized by the Pechini method for accurately determine charge carriers type and investigated by impedance spectroscopy, by the Tubandt method, which confirmed the absence of cationic conductivity, and measured the electrical conductivity as a function of oxygen partial pressures. The CaNb2O6 sample had the pure oxygen-ionic conductivity ∼2×10-6 S cm–1 at 800 °C (Ea = 0.82 eV), while the ZnNb2O6 had a similar conductivity value due to mixed ionic-electronic contribution (Ea = 0.83 eV). The electromotive force method also showed the predominance of the ionic type of conductivity in CaNb2O6, while ZnNb2O6 has a mixed conductivity with ion transport number of about 0.4. Additionally, we synthesized Ti-doped samples MNb2-xTixO6-0.5x (M = Mg, Ca; x = 0.1, 0.2) to study the doping effect on conducting properties.

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Protonic ceramics Ba5In2–Y Al2ZrO13 with the perovskite-related hexagonal structure for solid oxide fuel cells: Synthesis, optical band gap and transport properties

Andreev,

Korona,

Vlasov

et al. 2024

Ceramics International

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Preparation, electrical and thermal properties of new anode material based on Ca-doped perovskite CeAlO3

Cited by 5 publications

References 42 publications

Extensive research of conductivity in the fluorite-like KLn₄Mo₃O₁₅F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Extensive research of conductivity in the fluorite-like KLn₄Mo₃O₁₅F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Exhaustive Study of Electrical Conductivity in the MNb_2−xTixO_6–0.5x (M = Mg, Ca, Zn; x = 0, 0.1, 0.2) Columbites

Protonic ceramics Ba5In2–Y Al2ZrO13 with the perovskite-related hexagonal structure for solid oxide fuel cells: Synthesis, optical band gap and transport properties

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Preparation, electrical and thermal properties of new anode material based on Ca-doped perovskite CeAlO3

Cited by 5 publications

References 42 publications

Extensive research of conductivity in the fluorite-like KLn4Mo3O15F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Extensive research of conductivity in the fluorite-like KLn4Mo3O15F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Exhaustive Study of Electrical Conductivity in the MNb2−x TixO6–0.5x (M = Mg, Ca, Zn; x = 0, 0.1, 0.2) Columbites

Protonic ceramics Ba5In2–Y Al2ZrO13 with the perovskite-related hexagonal structure for solid oxide fuel cells: Synthesis, optical band gap and transport properties

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Extensive research of conductivity in the fluorite-like KLn₄Mo₃O₁₅F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Extensive research of conductivity in the fluorite-like KLn₄Mo₃O₁₅F (Ln = La, Pr, Nd) rare earth molybdates: theoretical and experimental data

Exhaustive Study of Electrical Conductivity in the MNb_2−xTixO_6–0.5x (M = Mg, Ca, Zn; x = 0, 0.1, 0.2) Columbites