Nonstoichiometric Strontium Ferromolybdate as an Electrode Material for Solid Oxide Fuel Cells

Suchaneck, G.; Artiukh, Evgenii

doi:10.3390/inorganics10120230

Cited by 13 publications

(4 citation statements)

References 117 publications

(310 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This implies that the mobility of holes, which act as the primary charge carrier, is more efficient in the nanoneedle cathode than in the normal cathode. The formation of nanoneedles increases the total surface area of the cathode, providing more pathways for hole mobility, resulting in an overall increase in hole movement [38,39].…”

Section: Electrical Conductivities With Respect To the Applied Currentmentioning

confidence: 99%

Generation of nanoflowers and nanoneedles on Co-based layered perovskite of IT-SOFC cathode affecting electrical conductivities

Song

Schlegl

et al. 2023

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Section: Electrical Conductivities With Respect To the Applied Currentmentioning

confidence: 99%

Generation of nanoflowers and nanoneedles on Co-based layered perovskite of IT-SOFC cathode affecting electrical conductivities

Song

Schlegl

et al. 2023

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

“…This opens the way to direct hydrocarbon-fueled SOFCs, eliminating the need for external fuel reforming and sulfur removal components. As such, SOFCs can be greatly simplified and operate with much higher overall efficiency, contributing to a solution to the lack of energy in our modern world [6]. The huge magnetic entropy change at the ferromagnetic transition makes SFMO a candidate for magnetocaloric cooling [7,8].…”

Section: Introductionmentioning

confidence: 99%

Absence of Weak Localization Effects in Strontium Ferromolybdate

Suchaneck

Artiukh²

2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Sr2FeMoO6-δ (SFMO) double perovskite is a promising candidate for room-temperature spintronic applications, since it possesses a half-metallic character (with theoretically 100% spin polarization), a high Curie temperature of about 415 K and a low-field magnetoresistance (LFMR). The magnetic, resistive and catalytic properties of the double perovskite SFMO are excellent for spintronic (non-volatile memory), sensing, fuel cell and microwave absorber applications. However, due to different synthesis conditions of ceramics and thin films, different mechanisms of electrical conductivity and magnetoresistance prevail. In this work, we consider the occurrence of a weak localization effect in SFMO commonly obtained in disordered metallic or semiconducting systems at very low temperatures due to quantum interference of backscattered electrons. We calculate the quantum corrections to conductivity and the contribution of electron scattering to the resistivity of SFMO. We attribute the temperature dependence of SFMO ceramic resistivity in the absence of a magnetic field to the fluctuation-induced tunneling model. We also attribute the decreasing resistivity in the temperature range from 409 K to 590 K to adiabatic small polaron hopping and not to localization effects. Neither fluctuation-induced tunneling nor adiabatic small polaron hopping favors quantum interference. Additionally, we demonstrate that the resistivity upturn behavior of SFMO cannot be explained by weak localization. Here, the fitted model parameters have no physically meaningful values, i.e., the fitted weak localization coefficient (B′) was three orders of magnitude lower than the theoretical coefficient, while the fitted exponent (n) of the electron–electron interaction term (CnTn) could not be assigned to a specific electron-scattering mechanism. Consequently, to the best of our knowledge, there is still no convincing evidence for the presence of weak localization in SFMO.

show abstract

“…Nonetheless, reducing the operating temperature of SOFCs leads to an increase in the cathodic polarization resistance, thereby deteriorating the cell performance. [2,3] Thus, there is a need to decrease the polarization resistance at low operational temperatures by selecting appropriate cathode materials for better performance of SOFC.…”

Section: Introductionmentioning

confidence: 99%

Advancements in Perovskite‐Based Cathode Materials for Solid Oxide Fuel Cells: A Comprehensive Review

Samreen,

Ali,

Huzaifa

et al. 2023

The Chemical Record

View full text Add to dashboard Cite

The high‐temperature solid oxide fuel cells (SOFCs) are the most efficient and green conversion technology for electricity generation from hydrogen‐based fuel as compared to conventional thermal power plants. Many efforts have been made to reduce the high operating temperature (>800 °C) to intermediate/low operating temperature (400 °C<T<800 °C) in SOFCs in order to extend their life span, thermal compatibility, cost‐effectiveness, and ease of fabrication. However, the major challenges in developing cathode materials for low/intermediate temperature SOFCs include structural stability, catalytic activity for oxygen adsorption and reduction, and tolerance against contaminants such as chromium, boron, and sulfur. This research aims to provide an updated review of the perovskite‐based state‐of‐the‐art cathode materials LaSrMnO3 (LSM) and LaSrCOFeO3 (LSCF), as well as the recent trending Ruddlesden‐Popper phase (RP) and double perovskite‐structured materials SOFCs technology. Our review highlights various strategies such as surface modification, codoping, infiltration/impregnation, and composites with fluorite phases to address the challenges related to LSM/LSCF‐based electrode materials and improve their electrocatalytic activity. Moreover, this study also offers insight into the electrochemical performance of the double perovskite oxides and Ruddlesden‐Popper phase materials as cathodes for SOFCs.

show abstract

Nonstoichiometric Strontium Ferromolybdate as an Electrode Material for Solid Oxide Fuel Cells

Cited by 13 publications

References 117 publications

Generation of nanoflowers and nanoneedles on Co-based layered perovskite of IT-SOFC cathode affecting electrical conductivities

Generation of nanoflowers and nanoneedles on Co-based layered perovskite of IT-SOFC cathode affecting electrical conductivities

Absence of Weak Localization Effects in Strontium Ferromolybdate

Advancements in Perovskite‐Based Cathode Materials for Solid Oxide Fuel Cells: A Comprehensive Review

Contact Info

Product

Resources

About