Preparation and performance of a Sr2+ doped LaMnO3 cathode for low temperature solid oxide fuel cells

Paul, Surinder; Anand, Vikas; Noorjahan,; Duggal, Vikas; Manokamna,

doi:10.1016/j.matpr.2023.09.029

Materials Today: Proceedings

2024

DOI: 10.1016/j.matpr.2023.09.029

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Preparation and performance of a Sr2+ doped LaMnO3 cathode for low temperature solid oxide fuel cells

Surinder Paul,

Vikas Anand,

Noorjahan

et al.

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2024

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Cited by 3 publications

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Eco-friendly auto-combustion synthesis and characterization of SmMnO3/Sm2O3/Mn2O3 nanocomposites in the presence of saccharides and their application as photocatalyst for degradation of water-soluble organic pollutants

Jamdar,

Heydariyan,

Alzaidy

et al. 2023

Arabian Journal of Chemistry

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Eco-friendly auto-combustion synthesis and characterization of SmMnO3/Sm2O3/Mn2O3 nanocomposites in the presence of saccharides and their application as photocatalyst for degradation of water-soluble organic pollutants

Jamdar,

Heydariyan,

Alzaidy

et al. 2023

Arabian Journal of Chemistry

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Theoretical Study of Electric, Dielectric, and Optical Properties in Ion Doped Multiferroic SrFe12O19 Nanoparticles

Apostolov,

Apostolova,

Wesselinowa

2024

Materials

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Electric, dielectric, and optical (band gap) properties of pure multiferroic as well as La- and Ni-doped SrFe12O19 (SFO) (at different sites) are investigated using a microscopic model and Green’s function technique. The concentration dependence of the polarization P is considered for substitution of rare earths ions on the Sr sites. For a small La ion doping concentration, x = 0.1, La-doped SFO is ferroelectric, whereas for a larger doping concentration, for example x = 0.5, it is antiferroelectric. The real part of the dielectric constant ϵ increases with an increasing magnetic field h. ϵ decreases with an increasing frequency and La dopants. Therefore, La-doped SFO is suitable for microwave application with a low dielectric constant. The magnetic properties of pure SFO NPs are also studied. Ni doping at the Fe site of SFO leads to enhanced ferroelectric polarization and dielectric constant. The band gap decreases or increases by substitution of Ni or In ions on the Fe site, respectively. The results reveal that the tuned band gap of Ni-doped SFO makes it a crucial candidate for optoelectronic and solid oxide fuel cell applications.

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Theoretical Study of the Phonon and Electrical Conductivity Properties of Pure and Sr-Doped LaMnO3 Thin Films

Apostolov,

Apostolova,

Wesselinowa

2024

Materials

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The film thickness, temperature, substrate and doping dependence of the phonon energy ω and damping γ, as well as the electrical conductivity, of pure and Sr-doped LaMnO3 thin films near the phase transition temperature TN are investigated using a microscopic model and the Green’s function technique. Due to the strong spin–phonon interaction, there appears a kink at TN in the temperature dependence of ω(T) and γ(T). The softening and hardening of the ω = 495 cm−1 (A1g) and ω = 614 cm−1 (B2g) modes is explained by the different sign of the anharmonic spin–phonon interaction constant R. The damping increases with T for both cases because it is proportional to R2. ω decreases whereas γ increases with an increasing Sr concentration. This is due to the strain caused by the difference between the ionic radii of the La and Sr ions. The film thickness dependence is also considered. ω and γ increase strongly with the decreasing film thickness. The electrical conductivity is enhanced after the doping of the LMO thin films with Sr, which could be used for energy storage applications. The observed results are in good qualitative agreement with the experimental data.

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Preparation and performance of a Sr2+ doped LaMnO3 cathode for low temperature solid oxide fuel cells

Cited by 3 publications

References 45 publications

Eco-friendly auto-combustion synthesis and characterization of SmMnO3/Sm2O3/Mn2O3 nanocomposites in the presence of saccharides and their application as photocatalyst for degradation of water-soluble organic pollutants

Eco-friendly auto-combustion synthesis and characterization of SmMnO3/Sm2O3/Mn2O3 nanocomposites in the presence of saccharides and their application as photocatalyst for degradation of water-soluble organic pollutants

Theoretical Study of Electric, Dielectric, and Optical Properties in Ion Doped Multiferroic SrFe12O19 Nanoparticles

Theoretical Study of the Phonon and Electrical Conductivity Properties of Pure and Sr-Doped LaMnO3 Thin Films

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