Chemical lattice strain in nonstoichiometric oxides: an overview

DS Tsvetkov, VV Sereda, DA Malyshkin… - Journal of Materials …, 2022 - pubs.rsc.org
Strong coupling between the chemical composition and crystal lattice dimensions resulting
in the contraction or expansion of a material upon change of its chemical composition is …

Oxygen-deficient perovskites for oxygen evolution reaction in alkaline media: a review

A Badreldin, AE Abusrafa, A Abdel-Wahab - Emergent Materials, 2020 - Springer
Oxygen vacancies in complex metal oxides and specifically in perovskites are demonstrated
to significantly enhance their electrocatalytic activities due to facilitating a degree of control …

Understanding the Highly Electrocatalytic Active Mixed Triple Conducting NaxCa3–xCo4O9–δ Oxygen Electrode Materials

K Park, H Bae, HK Kim, IG Choi, M Jo… - Advanced Energy …, 2023 - Wiley Online Library
Despite their high electrocatalytic activity for oxygen electrode reactions, the low phase
stability and high thermal expansion of perovskite structured materials have created …

Effect of oxygen vacancies on electrical conductivity of La 0.5 Sr 0.5 FeO 3− δ from first-principles calculations

Y Shin, KY Doh, SH Kim, JH Lee, H Bae… - Journal of Materials …, 2020 - pubs.rsc.org
We use first-principles density functional theory calculations to understand how oxygen
vacancies degrade the electrical conductivity of mixed ionic-electronic conductor (MIEC) at …

Exploring the artificially induced nonstoichiometric effect of Li 2 RuO 3 as a reactive promoter on electrocatalytic behavior

H Jang, W Jin, G Nam, Y Yoo, JS Jeon, J Park… - Energy & …, 2020 - pubs.rsc.org
Understanding the fundamental properties, particularly identifying the independent effect of
factors that govern catalytic activities, is crucial to design strategies for synthesizing efficient …

Electro-Oxidative Dehydrogenation of Ethane to Ethylene Using Lanthanum-Strontium-Iron Oxide Perovskite Electrocatalysts

A Kasick, AA Hajer, KD Wolfe, S Velraj… - Journal of The …, 2023 - iopscience.iop.org
Developing alternative, industrially viable ethylene production routes has received important
research attention. One chemical pathway of interest is the oxidative dehydrogenation …

Defect chemistry of p-type perovskite oxide La0.2Sr0.8FeO3-δ: a combined experimental and computational study

H Bae, Y Shin, L Mathur, D Lee, SJ Song - Journal of the Korean Ceramic …, 2022 - Springer
In this study, the mass and charge transport properties of La0. 2Sr0. 8FeO3-δ have been
investigated by deploying defect chemical analysis. From the thermo-gravimetric analysis …

Impact of A-Site Cation Deficiency on Charge Transport in La0.5−xSr0.5FeO3−δ

OV Merkulov, RR Samigullin, AA Markov… - Materials, 2021 - mdpi.com
The electrical conductivity of La0. 5− x Sr0. 5FeO3− δ, investigated as a function of the
nominal cation deficiency in the A-sublattice, x, varying from 0 to 0.02, has demonstrated a …

Phase Stability of Perovskite Oxide Electrodes under Operating Condition in Solid Oxide Fuel Cell

J Lee, Y Shin, T Kim, W Choi, MH Jung… - Chemistry of …, 2024 - ACS Publications
Perovskite-based materials are typically used as electrodes in solid oxide cells (SOCs)
owing to their high catalytic activity in oxygen exchange reactions. The degradation of typical …

The impact of cerium content on oxygen stoichiometry, defect equilibrium, and thermodynamic quantities of Sr1− xCexFeO3− δ

AA Markov, SS Nikitin, BV Politov, EV Shalaeva… - Journal of Alloys and …, 2021 - Elsevier
The structure, oxygen non-stoichiometry, and defect equilibrium in perovskite-type Sr 1− x
Ce x FeO 3− δ (x= 0.05, 0.10, 0.15, 0.20) were studied. X-ray diffraction showed the …