Surface Segregation in Lanthanum Strontium Manganite Thin Films and Its Potential Effect on the Oxygen Reduction Reaction

2017 ◽  
Vol 164 (10) ◽  
pp. F3091-F3096 ◽  
Author(s):  
J. N. Davis ◽  
K. F. Ludwig ◽  
K. E. Smith ◽  
J. C. Woicik ◽  
S. Gopalan ◽  
...  
Keyword(s):  
Thin Films ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Surface Segregation ◽  
Potential Effect ◽  
Reduction Reaction ◽  
Lanthanum Strontium Manganite ◽  
Lanthanum Strontium

Investigation of CoS2-based thin films as model catalysts for the oxygen reduction reaction

2008 ◽  
Vol 258 (1) ◽  
pp. 235-242 ◽  
Author(s):  
L ZHU ◽  
D SUSAC ◽  
M TEO ◽  
K WONG ◽  
P WONG ◽  
...  
Keyword(s):  
Thin Films ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Model Catalysts

scholarly journals Modeling of the oxygen reduction reaction for dense LSM thin films

2017 ◽  
Vol 19 (45) ◽  
pp. 30464-30472 ◽  
Author(s):  
Tao Yang ◽  
Jian Liu ◽  
Yang Yu ◽  
Yueh-Lin Lee ◽  
Harry Finklea ◽  
...  
Keyword(s):  
Thin Films ◽  
Reaction Mechanism ◽  
Numerical Methods ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction

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.

scholarly journals Oxygen Reduction Reaction Electrocatalysis in Alkaline Electrolyte on Glassy-Carbon-Supported Nanostructured Pr6O11 Thin-Films

Catalysts ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 461 ◽  
Author(s):  
Rakesh Sharma ◽  
Verónica Müller ◽  
Marian Chatenet ◽  
Elisabeth Djurado
Keyword(s):  
Thin Films ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Glassy Carbon ◽  
Spray Deposition ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Alkaline Electrolyte ◽  
Electrochemical Performances ◽  
Electrostatic Spray Deposition

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.

Reversible Surface Segregation of Pt in a Pt3Au/C Catalyst and Its Effect on the Oxygen Reduction Reaction

2013 ◽  
Vol 117 (18) ◽  
pp. 9164-9170 ◽  
Author(s):  
Kug-Seung Lee ◽  
Hee-Young Park ◽  
Hyung Chul Ham ◽  
Sung Jong Yoo ◽  
Hyoung Juhn Kim ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Surface Segregation ◽  
Reduction Reaction

Mechanism for the enhanced oxygen reduction reaction of La0.6Sr0.4Co0.2Fe0.8O3−δ by strontium carbonate

2017 ◽  
Vol 19 (1) ◽  
pp. 503-509 ◽  
Author(s):  
Mei Li ◽  
Zhongti Sun ◽  
Wenqiang Yang ◽  
Tao Hong ◽  
Zhesheng Zhu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Surface Segregation ◽  
Reduction Reaction ◽  
Strontium Carbonate

We demonstrate that SrCO3 can improve ORR on LSCF, solving the problem of contradicting effects of Sr surface segregation on LSCF.

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