Anionic defect engineering of transition metal oxides for oxygen reduction and evolution reactions

Y Zhu, X Liu, S Jin, H Chen, W Lee, M Liu… - Journal of Materials …, 2019 - pubs.rsc.org
The development of cost-effective catalysts for the oxygen reduction reaction (ORR) and
oxygen evolution reaction (OER) is crucial for enhancing the energy efficiency of many …

Point defects in oxides: tailoring materials through defect engineering

HL Tuller, SR Bishop - Annual Review of Materials Research, 2011 - annualreviews.org
Optimization of electrical, optical, mechanical, and other properties of many advanced,
functional materials today relies on precise control of point defects. This article illustrates the …

Fast ionic conduction in semiconductor CeO2-δ electrolyte fuel cells

B Wang, B Zhu, S Yun, W Zhang, C Xia, M Afzal… - NPG Asia …, 2019 - nature.com
Producing electrolytes with high ionic conductivity has been a critical challenge in the
progressive development of solid oxide fuel cells (SOFCs) for practical applications. The …

Strain-controlled oxygen vacancy formation and ordering in CaMnO

U Aschauer, R Pfenninger, SM Selbach, T Grande… - Physical Review B …, 2013 - APS
We use first-principles calculations to investigate the stability of biaxially strained Pnma
perovskite CaMnO 3 towards the formation of oxygen vacancies. Our motivation is provided …

Enhancing perovskite electrocatalysis through strain tuning of the oxygen deficiency

JR Petrie, H Jeen, SC Barron, TL Meyer… - Journal of the American …, 2016 - ACS Publications
Oxygen vacancies in transition-metal oxides facilitate catalysis critical for energy storage
and generation. However, promoting vacancies at the lower temperatures required for …

Surface strontium enrichment on highly active perovskites for oxygen electrocatalysis in solid oxide fuel cells

EJ Crumlin, E Mutoro, Z Liu, ME Grass… - Energy & …, 2012 - pubs.rsc.org
Perovskite oxides have high catalytic activities for oxygen electrocatalysis competitive to
platinum at elevated temperatures. However, little is known about the oxide surface …

Uncovering the effect of lattice strain and oxygen deficiency on electrocatalytic activity of perovskite cobaltite thin films

X Liu, L Zhang, Y Zheng, Z Guo, Y Zhu… - Advanced …, 2019 - Wiley Online Library
Developing cost effective electrocatalysts with high oxygen evolution reaction (OER) activity
is essential for large‐scale application of many electrochemical energy systems. Although …

Strain control of oxygen vacancies in epitaxial strontium cobaltite films

JR Petrie, C Mitra, H Jeen, WS Choi… - Advanced Functional …, 2016 - Wiley Online Library
The ability to manipulate oxygen anion defects rather than metal cations in complex oxides
can facilitate creating new functionalities critical for emerging energy and device …

Direct observation of ferroelectric field effect and vacancy-controlled screening at the BiFeO3/LaxSr1−xMnO3 interface

YM Kim, A Morozovska, E Eliseev, MP Oxley… - Nature materials, 2014 - nature.com
The development of interface-based magnetoelectric devices necessitates an
understanding of polarization-mediated electronic phenomena and atomistic polarization …

Probing oxygen vacancy concentration and homogeneity in solid-oxide fuel-cell cathode materials on the subunit-cell level

YM Kim, J He, MD Biegalski, H Ambaye, V Lauter… - Nature materials, 2012 - nature.com
Oxygen vacancy distributions and dynamics directly control the operation of solid-oxide fuel
cells and are intrinsically coupled with magnetic, electronic and transport properties of …