Structural, multiferroic properties and enhanced magnetoelectric coupling in Sm1−xCaxFeO3

Praveena, K.; Bharathi, P.; Liu, Hsiang Lin; Varma, K. B. R.

doi:10.1016/j.ceramint.2016.05.150

Cited by 32 publications

(6 citation statements)

References 63 publications

(65 reference statements)

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“…This phenomenon may be due to the introduced lattice defects caused by the substitution of lower/higher valence ions, resulting in lattice compression. The results are consistent with those in literature [16,28,29]. The diffraction peak of SCFCO shows additional offset among the four samples, implying that Ca and Cu co-doped into SmFeO 3-d may have synergistic effect on the lattice structure.…”

Section: Characterization Methods and Electrochemical Measurementsupporting

confidence: 92%

Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

et al. 2020

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The electrochemical conversion of CO 2 to CO by using solid oxide electrolysis cell (SOEC) is an attractive technology for sustainable utilization of greenhouse gas to chemicals. In this work, Ca and/or Cu doped SmFeO 3 perovskite materials in the form of Sm 1-x Ca x Fe 1-y Cu y O 3-d (x = 0, y = 0; x = 0.1, y = 0; x = 0, y = 0.1; x = 0.1, y = 0.1) are evaluated as SOEC fuel electrode for direct electrolysis of CO 2. The Ca and Cu co-doped sample Sm 0.9 Ca 0.1 Fe 0.9 Cu 0.1 O 3-d (SCFCO) presents the highest electrical conductivity value of 15.18 S cm-1 among all of the samples under CO 2 atmosphere at 700°C. The electrochemical impedance spectroscopy analysis reveals that the CO 2 dissociative adsorption and charge transfer of Ca and Cu co-doped fuel electrode are significantly enhanced, resulting in the greatly decrease in polarization resistance compared with that of the undoped sample. The current density of an electrolyte-supported single cell with the SCFCO fuel electrode reaches as high as 1.20 A cm-2 at the applied voltage of 1.5 V and 800°C, which is 60% higher than that of the SmFeO 3-d fuel electrode. Furthermore, the cell shows an impressive stability for the durability test, indicating the excellent electrocatalysis performance and coking tolerance of SCFCO as a promising fuel electrode material for direct electrolysis of CO 2 .

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Section: Characterization Methods and Electrochemical Measurementsupporting

confidence: 92%

Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

et al. 2020

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“…In addition, all four hysteresis loops are unclosed. Praveena et al and Rajeswaran et al showed that this behavior can be due to the existence of leakage current [36,37]. According to Table 5, both of Pr and Ec became more from R= Dy to Lu.…”

Section: Magnetic Propertiesmentioning

confidence: 91%

Structural, magnetic and electrical properties of RFeO3 (R= Dy, Ho, Yb & Lu) compounds

Nakhaei

Khoshnoud

2021

Preprint

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The nanosized rare earth orthoferrites (RFeO3) with R= Dy, Ho, Yb & Lu were synthesis by sol-gel combustion method. The effects of varying rare earth ion on structural, magnetic and electrical properties of RFeO3 nanoparticles (NPs) have been studied. X-ray diffraction patterns of the prepared samples were in single phase with orthorhombic structure with space group Pbnm. The magnetic hysteresis measurements indicated the decrease in the antiferromagnetic nature of RFeO3 from Dy to Lu that can be ascribed to increasing noncollinear Fe moments because of the structural distortion. The electric hysteresis of these samples exhibited narrow electric field-polarization loops. The frequency response of dielectric constant of RFeO3 explained based on dipole relaxation process and Maxwell-Wagner model. In addition, the temperature dependence of dielectric constant illustrated an anomaly in the vicinity of the Neel temperature of RFeO3 compounds. This occurrence indicate that a coupling exist between magnetic and electric orders.

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“…Rajeswaran et al showed that this behavior can be due to the existence of leakage current [36,37]. According to Table 5, both of Pr and Ec became more from R= Dy to Lu.…”

Section: P-e Measurementsmentioning

confidence: 93%

Structural, magnetic, and electrical properties of RFeO3 (R = Dy, Ho, Yb & Lu) compounds

Nakhaei

Khoshnoud

2021

J Mater Sci: Mater Electron

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The nanosized rare earth orthoferrites (RFeO3) with R= Dy, Ho, Yb & Lu were synthesis by sol-gel combustion method. The effects of varying rare earth ion on structural, magnetic and electrical properties of RFeO3 nanoparticles (NPs) have been studied. X-ray diffraction patterns of the prepared samples were in single phase with orthorhombic structure with space group Pbnm. The magnetic hysteresis measurements indicated the decrease in the antiferromagnetic nature of RFeO3 from Dy to Lu that can be ascribed to increasing noncollinear Fe moments because of the structural distortion. The electric hysteresis of these samples exhibited narrow electric field-polarization loops.The frequency response of dielectric constant of RFeO3 explained based on dipole relaxation process and Maxwell-Wagner model. In addition, the temperature dependence of dielectric constant illustrated an anomaly in the vicinity of the Neel temperature of RFeO3 compounds. This occurrence indicate that a coupling exist between magnetic and electric orders.

show abstract

Structural, multiferroic properties and enhanced magnetoelectric coupling in Sm1−xCaxFeO3

Cited by 32 publications

References 63 publications

Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

Structural, magnetic and electrical properties of RFeO3 (R= Dy, Ho, Yb & Lu) compounds

Structural, magnetic, and electrical properties of RFeO3 (R = Dy, Ho, Yb & Lu) compounds

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Structural, multiferroic properties and enhanced magnetoelectric coupling in Sm1−xCaxFeO3

Cited by 32 publications

References 63 publications

Ca/Cu Co‐doped SmFeO3 as a Fuel Electrode Material for Direct Electrolysis of CO2 in SOECs▴

Ca/Cu Co‐doped SmFeO3 as a Fuel Electrode Material for Direct Electrolysis of CO2 in SOECs▴

Structural, magnetic and electrical properties of RFeO3 (R= Dy, Ho, Yb &amp; Lu) compounds

Structural, magnetic, and electrical properties of RFeO3 (R = Dy, Ho, Yb & Lu) compounds

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Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

Ca/Cu Co‐doped SmFeO₃ as a Fuel Electrode Material for Direct Electrolysis of CO₂ in SOECs▴

Structural, magnetic and electrical properties of RFeO3 (R= Dy, Ho, Yb & Lu) compounds