Sr segregation in perovskite oxides: why it happens and how it exists

B Koo, K Kim, JK Kim, H Kwon, JW Han, WC Jung - Joule, 2018 - cell.com
Among the phenomena related to the surface rearrangement of cations in perovskite-based
oxides, A-site cation enrichment, Sr in particular, near the surface has been frequently …

Controlling cation segregation in perovskite-based electrodes for high electro-catalytic activity and durability

Y Li, W Zhang, Y Zheng, J Chen, B Yu… - Chemical Society …, 2017 - pubs.rsc.org
Solid oxide cell (SOC) based energy conversion systems have the potential to become the
cleanest and most efficient systems for reversible conversion between electricity and …

A high-entropy manganite in an ordered nanocomposite for long-term application in solid oxide cells

F Baiutti, F Chiabrera, M Acosta, D Diercks… - Nature …, 2021 - nature.com
The implementation of nano-engineered composite oxides opens up the way towards the
development of a novel class of functional materials with enhanced electrochemical …

Recent advances of perovskite oxide-based cathodes in solid oxide electrolysis cells for CO2 electroreduction

J Chen, X Gao, X Chen, Z Zhen, Y Chen, X Zeng… - Materials Today …, 2023 - Elsevier
CO 2 reduction plays a vital role in carbon capture, utilization and storage (CCUS), whereas
electroreduction method has attracted considerable attention because of its high selectivity …

Nanoscale Intertwined Biphase Nanofiber as Active and Durable Air Electrode for Solid Oxide Electrochemical Cells

X Zhang, Y Zheng, Z Ding, G Yang, X Xiao… - ACS Sustainable …, 2023 - ACS Publications
The poor temperature activity and durability due to surface Sr segregation are two main
challenges restricting the practicability of state-of-the-art La1–x Sr x Co1–y Fe y O3 (LSCF) …

Influence of Y-substitution on phase composition and proton uptake of self-generated Ba (Ce, Fe) O 3− δ–Ba (Fe, Ce) O 3− δ composites

C Berger, E Bucher, R Merkle, C Nader… - Journal of Materials …, 2022 - pubs.rsc.org
Self-generated composites from the series BaCe1−(x+ z) FexYzO3− δ with z= 0.2 for 0.1≤
x≤ 0.6 and z= 0 for Ce: Fe= 1 were obtained by one-pot synthesis. The composites consist …

Interaction of O2 with LSM–YSZ Composite Materials and Oxygen Spillover Effect

MV Ananyev, NM Porotnikova, VA Eremin… - ACS …, 2021 - ACS Publications
The interaction between gas-phase oxygen and LSM–YSZ (LSM is La0. 6Sr0. 4MnO3±δ;
YSZ is ZrO2· Y2O3 electrolyte) composite catalytic materials was studied by the in situ …

Effect of oxygen nonstoichiometry on electrical conductivity and oxygen transport parameters of Cu-substituted La0.5Sr0.5Co0.8Fe0.2O3-δ perovskite oxides

R Mandal, SK Behera, SK Pratihar - Journal of Solid State Electrochemistry, 2024 - Springer
A parametric evaluation on a series of oxygen-deficient Co-rich La0. 5Sr0. 5Co0. 8Fe0. 2−
xCuxO3− δ perovskite oxides (x= 0–0.20) is reported, for potential utility towards oxygen …

Influence of ionic conductivity of the nano-particulate coating phase on oxygen surface exchange of La 0.58 Sr 0.4 Co 0.2 Fe 0.8 O 3− δ

S Saher, S Naqash, BA Boukamp, B Hu… - Journal of Materials …, 2017 - pubs.rsc.org
The oxygen surface exchange kinetics of mixed-conducting perovskite La0. 58Sr0. 4Co0.
2Fe0. 8O3− δ (LSCF) ceramics coated with a porous nano-particulate layer of either …

Evidence that surface-segregated Sr phases can be removed in LSCF via ceria pre-infiltration, are less apt to form in SSC

Y Zhang, JD Nicholas - Journal of The Electrochemical Society, 2021 - iopscience.iop.org
Abstract Here Ce 0.9 Gd 0.1 O 1.95− x (GDC) pre-infiltration was performed on 12 vol.% La
0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3− x (LSCF) or Sm 0.5 Sr 0.5 CoO 3− x (SSC) infiltrated GDC …