scholarly journals Tensile Lattice Strain Accelerates Oxygen Surface Exchange and Diffusion in La1–xSrxCoO3−δ Thin Films

ACS Nano ◽  
2013 ◽  
Vol 7 (4) ◽  
pp. 3276-3286 ◽  
Author(s):  
Markus Kubicek ◽  
Zhuhua Cai ◽  
Wen Ma ◽  
Bilge Yildiz ◽  
Herbert Hutter ◽  
...  
Keyword(s):  
Thin Films ◽  
Lattice Strain ◽  
Surface Exchange ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

scholarly journals Influence of Heterointerfaces on the Kinetics of Oxygen Surface Exchange on Epitaxial La1.85Sr0.15CuO4 Thin Films

2021 ◽  
Vol 11 (9) ◽  
pp. 3778
Author(s):  
Gene Yang ◽  
So-Yeun Kim ◽  
Changhee Sohn ◽  
Jong K. Keum ◽  
Dongkyu Lee
Keyword(s):  
Thin Films ◽  
Oxygen Vacancies ◽  
Elevated Temperatures ◽  
Surface Exchange ◽  
Electrical Conductivity Relaxation ◽  
Exchange Kinetics ◽  
Relaxation Curves ◽  
Kinetics Of ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Considerable attention has been directed to understanding the influence of heterointerfaces between Ruddlesden–Popper (RP) phases and ABO3 perovskites on the kinetics of oxygen electrocatalysis at elevated temperatures. Here, we report the effect of heterointerfaces on the oxygen surface exchange kinetics by employing heteroepitaxial oxide thin films formed by decorating LaNiO3 (LNO) on La1.85Sr0.15CuO4 (LSCO) thin films. Regardless of LNO decoration, tensile in-plane strain on LSCO films does not change. The oxygen surface exchange coefficients (kchem) of LSCO films extracted from electrical conductivity relaxation curves significantly increase with partial decorations of LNO, whereas full LNO coverage leads to the reduction in the kchem of LSCO films. The activation energy for oxygen exchange in LSCO films significantly decreases with partial LNO decorations in contrast with the full coverage of LNO. Optical spectroscopy reveals the increased oxygen vacancies in the partially covered LSCO films relative to the undecorated LSCO film. We attribute the enhanced oxygen surface exchange kinetics of LSCO to the increased oxygen vacancies by creating the heterointerface between LSCO and LNO.

Surface potentials and oxygen surface exchange coefficients of acceptor and donor-doped CeO2 thin films

2021 ◽  
Author(s):  
Hans F. Wardenga ◽  
Katharina N.S. Schuldt ◽  
Stephan Peter Waldow ◽  
Roger A De Souza ◽  
Andreas Klein
Keyword(s):  
Thin Films ◽  
Work Function ◽  
Surface Electron ◽  
Surface Exchange ◽  
Surface Potentials ◽  
Doped Ceo2 ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

In order to evaluate the influence of work function and surface electron concentrations on oxygen surface exchange coefficients, the surface potentials of acceptor-, donor-, and nominally un-doped CeO2 films are...

Oxygen surface exchange and diffusion in mayenite single crystal

2019 ◽  
Vol 21 (44) ◽  
pp. 24740-24748 ◽  
Author(s):  
Anna S. Tolkacheva ◽  
Sergey N. Shkerin ◽  
Natalia M. Porotnikova ◽  
Mikhail V. Kuznetsov ◽  
Sergey V. Naumov ◽  
...  
Keyword(s):  
Single Crystal ◽  
Gas Phase ◽  
Surface Exchange ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Oxygen surface exchange and diffusion in Ca12Al14O33±δ single crystal were studied by a unique in situ method based on isotope equilibration in the gas phase.

Oxygen surface exchange properties and surface segregation behavior of nanostructured La0.6Sr0.4Co0.2Fe0.8O3−δ thin film cathodes

2019 ◽  
Vol 21 (13) ◽  
pp. 7183-7195 ◽  
Author(s):  
K. Develos-Bagarinao ◽  
J. De Vero ◽  
H. Kishimoto ◽  
T. Ishiyama ◽  
K. Yamaji ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Segregation ◽  
Oxygen Exchange ◽  
Surface Exchange ◽  
Segregation Behavior ◽  
Oxygen Surface Exchange ◽  
Exchange Properties ◽  
Oxygen Surface

Nanostructured LSCF thin films with more enhanced oxygen exchange properties also show a higher tendency to surface segregation.

Oxygen surface exchange and diffusion in Pr1.75Sr0.25Ni0.75Co0.25O4±δ

2019 ◽  
Vol 21 (9) ◽  
pp. 4779-4790 ◽  
Author(s):  
Evgeniy Tropin ◽  
Maxim Ananyev ◽  
Natalia Porotnikova ◽  
Anna Khodimchuk ◽  
Saim Saher ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Gas Phase ◽  
Isotope Exchange ◽  
Surface Exchange ◽  
Oxygen Isotope Exchange ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Oxygen surface exchange and diffusion in Pr1.75Sr0.25Ni0.75Co0.25O4±δ have been investigated using two methods: pulsed isotope exchange (PIE) and oxygen isotope exchange with gas phase equilibration (IE GPE).

scholarly journals Strontium influence on the oxygen electrocatalysis of La2−xSrxNiO4±δ (0.0 ≤ xSr ≤ 1.0) thin films

2014 ◽  
Vol 2 (18) ◽  
pp. 6480-6487 ◽  
Author(s):  
Dongkyu Lee ◽  
Yueh-Lin Lee ◽  
Alexis Grimaud ◽  
Wesley T. Hong ◽  
Michael D. Biegalski ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Exchange ◽  
Exchange Kinetics ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Strong Sr dependence of the oxygen surface exchange kinetics for the La2−xSrxNiO4±δ (LSNO) thin films.

scholarly journals Oxygen surface exchange and diffusion in fast ionic conductors

1986 ◽  
Vol 18-19 ◽  
pp. 1038-1044 ◽  
Author(s):  
B STEELE ◽  
J KILNER ◽  
P DENNIS ◽  
A MCHALE ◽  
M VANHEMERT ◽  
...  
Keyword(s):  
Ionic Conductors ◽  
Surface Exchange ◽  
Fast Ionic Conductors ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface

Oxygen Surface Exchange and Tracer Diffusion in Differently Oriented Thin Films of Gd-Doped CeO2

2020 ◽  
Vol 12 (32) ◽  
pp. 36768-36777
Author(s):  
Stephan P. Waldow ◽  
Benjamin J. Statham ◽  
Hans F. Wardenga ◽  
Thomas E. Weirich ◽  
Andreas Klein ◽  
...  
Keyword(s):  
Thin Films ◽  
Tracer Diffusion ◽  
Surface Exchange ◽  
Doped Ceo2 ◽  
Oxygen Surface Exchange ◽  
Oxygen Surface
Sign in / Sign up

Export Citation Format

Share Document