Quadruple and Quintuple Perovskite-Layered Cuprates (NdDyBa2−xSrxCu2+yTi2−yO11−δ and NdDyCaBa2−xSrxCu2+yTi3−yO14−δ): Their Defect Chemistry and Electrical Properties

Mansourian-Hadavi, N.; Ko, Donggeun; Mason, Thomas O.; Poeppelmeier, Kenneth R.

doi:10.1006/jssc.2000.8936

Cited by 5 publications

(3 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…) elucidated their unique electrical properties and defect chemistry of these materials (9,15,25 strategy to increase the hole concentration of the systems. Low-temperature resistivity measurements showed, however, no superconducting transition in these quadruple compounds.…”

Section: Results and Disscusionmentioning

confidence: 99%

“…3 suggest improvement in electrical properties of the systems upon co-doping, as compared (15,25). The relatively large values of the conductivity data ( ) imply that either the density of states near the Fermi level and/or the carrier mobility is enhanced.…”

Section: High-temperature Electrical Characterizationmentioning

confidence: 90%

“…7 shows the corresponding regions of the Jonker plot for each portion of the curve. Figures 9 and 10 show the d(log )/d (log pO ) vs ln }ln plot for the doped and undoped quadruple and quintuple compounds respectively from previous work and the present study based on the modi"ed defect model presented above (9,15,25). The solid line in Fig.…”

Section: Modixed Defect Model For Transitional Regime In Layered Peromentioning

confidence: 95%

See 2 more Smart Citations

Defect Analysis of Ionically Compensated Quadruple and Quintuple Perovskite Layered Cuprates with Ti Blocking Layers

Mansourian-Hadavi¹,

Mason

et al. 2002

Journal of Solid State Chemistry

Self Cite

View full text Add to dashboard Cite

Section: Results and Disscusionmentioning

confidence: 99%

Section: High-temperature Electrical Characterizationmentioning

confidence: 90%

Section: Modixed Defect Model For Transitional Regime In Layered Peromentioning

confidence: 95%

See 1 more Smart Citation

Defect Analysis of Ionically Compensated Quadruple and Quintuple Perovskite Layered Cuprates with Ti Blocking Layers

Mansourian-Hadavi¹,

Mason

et al. 2002

Journal of Solid State Chemistry

Self Cite

View full text Add to dashboard Cite

Atomic‐Scale Engineering for New Generation Air Electrode Materials of Solid Oxide Cells: Quintuple Perovskite Sm₂Ba₃Co₂Fe₃O_15‐δ with Twinned Crystal Structure

Sun,

Shen,

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

The catalytic activity and thermomechanical stability of electrode materials are crucial for the efficient operation of reversible solid oxide cell (rSOC). However, these two traits often impose limitations on one another. In this work, a unique quintuple perovskite Sm2Ba3Co2Fe3O15‐δ (SBCF‐5L), comprising of A‐site ordered double perovskite layers and disordered simple perovskite layers, is reported as a high‐performance air electrode material for rSOC. The designed SBCF‐5L material exhibits a highly symmetrical tetragonal structure (pseudo‐cubic) with an isotropic thermal expansion and a limited chemical expansion. The formation barriers for oxygen vacancies are comparable between A‐site ordered layers and disordered simple perovskite layers, resulting in a high concentration of oxygen vacancies and 3D‐like bulk mobility of oxygen ions. Perpendicularly twinned nanodomains are developed in the particles, providing more active sites for surface electrode reaction. When applied in electrolyte‐supported cells, the SBCF‐5L electrode exhibits excellent electrochemical performance with low polarization resistance of 0.017 Ω cm−2, high power density of 1.01 W cm−2 and high electrolysis current density of 1.08 A cm−2 at 1.3 V at 800 °C in fuel cell and electrolysis modes, respectively. This study introduces a new approach of atomic‐scale engineering to rationally design a new generation of air electrodes for rSOC.

show abstract

Structure Determination of the Layered Manganocuprates Ln3Ba2Mn2Cu2O12±y, Ln=Sm, Eu, by Powder Neutron Diffraction

Field

Knee

Weller

2002

Journal of Solid State Chemistry

View full text Add to dashboard Cite

Quadruple and Quintuple Perovskite-Layered Cuprates (NdDyBa2−xSrxCu2+yTi2−yO11−δ and NdDyCaBa2−xSrxCu2+yTi3−yO14−δ): Their Defect Chemistry and Electrical Properties

Cited by 5 publications

References 46 publications

Defect Analysis of Ionically Compensated Quadruple and Quintuple Perovskite Layered Cuprates with Ti Blocking Layers

Defect Analysis of Ionically Compensated Quadruple and Quintuple Perovskite Layered Cuprates with Ti Blocking Layers

Atomic‐Scale Engineering for New Generation Air Electrode Materials of Solid Oxide Cells: Quintuple Perovskite Sm₂Ba₃Co₂Fe₃O_15‐δ with Twinned Crystal Structure

Structure Determination of the Layered Manganocuprates Ln3Ba2Mn2Cu2O12±y, Ln=Sm, Eu, by Powder Neutron Diffraction

Contact Info

Product

Resources

About

Quadruple and Quintuple Perovskite-Layered Cuprates (NdDyBa2−xSrxCu2+yTi2−yO11−δ and NdDyCaBa2−xSrxCu2+yTi3−yO14−δ): Their Defect Chemistry and Electrical Properties

Cited by 5 publications

References 46 publications

Defect Analysis of Ionically Compensated Quadruple and Quintuple Perovskite Layered Cuprates with Ti Blocking Layers

Defect Analysis of Ionically Compensated Quadruple and Quintuple Perovskite Layered Cuprates with Ti Blocking Layers

Atomic‐Scale Engineering for New Generation Air Electrode Materials of Solid Oxide Cells: Quintuple Perovskite Sm2Ba3Co2Fe3O15‐δ with Twinned Crystal Structure

Structure Determination of the Layered Manganocuprates Ln3Ba2Mn2Cu2O12±y, Ln=Sm, Eu, by Powder Neutron Diffraction

Contact Info

Product

Resources

About

Atomic‐Scale Engineering for New Generation Air Electrode Materials of Solid Oxide Cells: Quintuple Perovskite Sm₂Ba₃Co₂Fe₃O_15‐δ with Twinned Crystal Structure