scholarly journals Fast oxygen exchange and diffusion kinetics of grain boundaries in Sr-doped LaMnO3 thin films

2015 ◽  
Vol 17 (12) ◽  
pp. 7659-7669 ◽  
Author(s):  
Edvinas Navickas ◽  
Tobias M. Huber ◽  
Yan Chen ◽  
Walid Hetaba ◽  
Gerald Holzlechner ◽  
...  

Isotope exchange depth profile measurements were performed on columnar/epitaxial LSM thin films with varied microstructure. These uncover the importance of grain boundaries for oxygen reduction reaction and oxide ion diffusion.

2008 ◽  
Vol 258 (1) ◽  
pp. 235-242 ◽  
Author(s):  
L ZHU ◽  
D SUSAC ◽  
M TEO ◽  
K WONG ◽  
P WONG ◽  
...  

2017 ◽  
Vol 19 (45) ◽  
pp. 30464-30472 ◽  
Author(s):  
Tao Yang ◽  
Jian Liu ◽  
Yang Yu ◽  
Yueh-Lin Lee ◽  
Harry Finklea ◽  
...  

In the present study, the oxygen reduction reaction mechanism is investigated using numerical methods on a dense thin (La1−xSrx)yMnO3±δ film deposited on a YSZ substrate.


2008 ◽  
Vol 54 (2) ◽  
pp. 376-381 ◽  
Author(s):  
J. Xie ◽  
K. Kohno ◽  
T. Matsumura ◽  
N. Imanishi ◽  
A. Hirano ◽  
...  

Catalysts ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 461 ◽  
Author(s):  
Rakesh Sharma ◽  
Verónica Müller ◽  
Marian Chatenet ◽  
Elisabeth Djurado

In this work, hierarchical nanostructured Pr6O11 thin-films of brain-like morphology were successfully prepared by electrostatic spray deposition (ESD) on glassy-carbon substrates. These surfaces were used as working electrodes in the rotating disk electrode (RDE) setup and characterized in alkaline electrolyte (0.1 M NaOH at 25 ± 2 °C) for the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER), and the oxygen reduction reaction (ORR) for their potential application in alkaline electrolyzers or in alkaline fuel cells. The electrochemical performances of these electrodes were investigated as a function of their crystallized state (amorphous versus crystalline). Although none of the materials display spectacular HER and OER activity, the results show interesting performances of the crystallized sample towards the ORR with regards to this class of non-Pt group metal (non-PGM) electrocatalysts, the activity being, however, still far from a benchmark Pt/C electrocatalyst.


Nanoscale ◽  
2018 ◽  
Vol 10 (26) ◽  
pp. 12612-12624 ◽  
Author(s):  
Dipak Dutta ◽  
Andita Nataria Fitri Ganda ◽  
Jui-Kung Chih ◽  
Cheng-Chun Huang ◽  
Chung-Jen Tseng ◽  
...  

The interfacial chemistry and diffusion kinetics of a polymer–graphene nanocomposite anticorrosion coating were studied to minimize galvanic corrosion facilitated by the formation of an interconnected graphene percolation network.


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