Oxidation and Oxygen Reduction on Polycrystalline Platinum in Aqueous Tetramethylguanidine Alkaline Electrolyte

2012 ◽  
Vol 15 (3) ◽  
pp. B17 ◽  
Author(s):  
Daniel Konopka ◽  
Michael A. Johnson ◽  
Michael Errico ◽  
Poyan Bahrami ◽  
Charles C. Hays
Keyword(s):  
Oxygen Reduction ◽  
Alkaline Electrolyte ◽  
Polycrystalline Platinum

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.

Design and synthesis of carbonized polypyrrole-coated graphene aerogel acting as an efficient metal-free catalyst for oxygen reduction

RSC Advances ◽  
2014 ◽  
Vol 4 (33) ◽  
pp. 16979-16984 ◽  
Author(s):  
Hua Wei ◽  
Mao-Wen Xu ◽  
Shu-Juan Bao ◽  
Fan Yang ◽  
Hui Chai
Keyword(s):  
Oxygen Reduction ◽  
Hydrothermal Process ◽  
Alkaline Electrolyte ◽  
Graphene Aerogel ◽  
Metal Free ◽  
Design And Synthesis ◽  
Doped Graphene

Synthesis of 3D N-doped graphene aerogel for ORR in alkaline electrolyte using hydrothermal process without any oxidant.

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