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 …

Tuning perovskite oxides by strain: Electronic structure, properties, and functions in (electro) catalysis and ferroelectricity

J Hwang, Z Feng, N Charles, XR Wang, D Lee… - Materials Today, 2019 - Elsevier
Complex oxides, such as ABO 3 perovskites, are an important class of functional materials
that exhibit a wide range of physical, chemical, and electrochemical properties, including …

Electrochemical impedance spectroscopy of metal oxide electrodes for energy applications

ARC Bredar, AL Chown, AR Burton… - ACS Applied Energy …, 2020 - ACS Publications
Metal oxides have been of great importance to the development of energy conversion and
storage technologies including heterojunction solar cells, Li-ion batteries, and …

Concurrent oxygen reduction and water oxidation at high ionic strength for scalable electrosynthesis of hydrogen peroxide

C Kim, SO Park, SK Kwak, Z **a, G Kim… - Nature Communications, 2023 - nature.com
Electrosynthesis of hydrogen peroxide via selective two-electron transfer oxygen reduction
or water oxidation reactions offers a cleaner, cost-effective alternative to anthraquinone …

Engineering high‐spin state cobalt cations in spinel zinc cobalt oxide for spin channel propagation and active site enhancement in water oxidation

Y Sun, X Ren, S Sun, Z Liu, S **, ZJ Xu - Angewandte Chemie, 2021 - Wiley Online Library
Spinel zinc cobalt oxide (ZnCo2O4) is not considered as a superior catalyst for the
electrochemical oxygen evolution reaction (OER), which is the bottleneck reaction in water …

Heterogeneous catalyst coating for boosting the activity and chromium tolerance of cathodes for solid oxide fuel cells

J Huang, F Liang, S Zhao, L Zhao, N Ai… - Advanced Functional …, 2024 - Wiley Online Library
A challenge hindering the development of durable solid oxide fuel cells (SOFCs) is the
significant performance degradation of cathodes owing to poisoning by volatile Cr …

[HTML][HTML] Oxygen vacancies: The (in) visible friend of oxide electronics

F Gunkel, DV Christensen, YZ Chen, N Pryds - Applied physics letters, 2020 - pubs.aip.org
Oxygen vacancies play crucial roles in determining the physical properties of metal oxides,
representing important building blocks in many scientific and technological fields due to their …

Highly durable, coking and sulfur tolerant, fuel-flexible protonic ceramic fuel cells

C Duan, RJ Kee, H Zhu, C Karakaya, Y Chen, S Ricote… - Nature, 2018 - nature.com
Protonic ceramic fuel cells, like their higher-temperature solid-oxide fuel cell counterparts,
can directly use both hydrogen and hydrocarbon fuels to produce electricity at potentially …

Improvement of oxygen reduction activity and stability on a perovskite oxide surface by electrochemical potential

S Koohfar, M Ghasemi, T Hafen… - Nature …, 2023 - nature.com
The instability of the surface chemistry in transition metal oxide perovskites is the main factor
hindering the long-term durability of oxygen electrodes in solid oxide electrochemical cells …

A perspective on low-temperature solid oxide fuel cells

Z Gao, LV Mogni, EC Miller, JG Railsback… - Energy & …, 2016 - pubs.rsc.org
This article provides a perspective on solid oxide fuel cells operating at low temperature,
defined here to be the range from∼ 400° C to 650° C. These low-temperature solid oxide …