scholarly journals Proton-Coupled Oxygen Reduction at Liquid−Liquid Interfaces Catalyzed by Cobalt Porphine

2009 ◽  
Vol 131 (37) ◽  
pp. 13453-13459 ◽  
Author(s):  
Imren Hatay ◽  
Bin Su ◽  
Fei Li ◽  
Manuel Alejandro Méndez ◽  
Tony Khoury ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Liquid Interfaces

scholarly journals Self-Assembled Molecular Rafts at Liquid|Liquid Interfaces for Four-Electron Oxygen Reduction

2011 ◽  
Vol 134 (1) ◽  
pp. 498-506 ◽  
Author(s):  
Astrid J. Olaya ◽  
Delphine Schaming ◽  
Pierre-Francois Brevet ◽  
Hirohisa Nagatani ◽  
Tomas Zimmermann ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Liquid Interfaces ◽  
Self Assembled

scholarly journals Molecular Electrocatalysis for Oxygen Reduction by Cobalt Porphyrins Adsorbed at Liquid/Liquid Interfaces

2010 ◽  
Vol 132 (8) ◽  
pp. 2655-2662 ◽  
Author(s):  
Bin Su ◽  
Imren Hatay ◽  
Antonín Trojánek ◽  
Zdeněk Samec ◽  
Tony Khoury ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Liquid Interfaces ◽  
Cobalt Porphyrins

Mechanistic Study of Oxygen Reduction at Liquid/Liquid Interfaces by Hybrid Ultramicroelectrodes and Mass Spectrometry

2019 ◽  
Vol 141 (33) ◽  
pp. 13212-13221 ◽  
Author(s):  
Chaoyue Gu ◽  
Xin Nie ◽  
Jiezhang Jiang ◽  
Zifei Chen ◽  
Yifan Dong ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Oxygen Reduction ◽  
Mechanistic Study ◽  
Liquid Interfaces

Gas Diffusion Electrode With Large Amounts of Gas Diffusion Channel Using Hydrophobic Carbon Fiber: For Oxygen Reduction Reaction at Gas/Liquid Interfaces

2017 ◽  
Vol 14 (2) ◽  
Author(s):  
Shohei Tada ◽  
Pantira Privatananupunt ◽  
Toshiyuki Iwasaki ◽  
Ryuji Kikuchi
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Fibers ◽  
Electrochemical Impedance ◽  
Mercury Porosimetry ◽  
Gas Diffusion ◽  
Reduction Reaction ◽  
Alkaline Electrolyte ◽  
Liquid Interfaces ◽  
Diffusion Channel

For a gas diffusion cathode for oxygen reduction reaction (ORR) in aqueous alkaline electrolyte, it is important to create networks for O2 gas diffusion, electronic conduction, and liquid-phase OH− transport in the cathode at once. In this study, we succeeded to fabricate a promising cathode using hydrophobic vapor grown carbon fibers (VGCF-Xs), instead of hydrophobic carbon blacks (CBs), as additives to its active layer (AL). Mercury porosimetry, as well as electrochemical impedance spectroscopy, showed that porosity of the cathode gradually increased with increasing the amount of the carbon fibers. In other words, addition of larger amount of the carbon fibers creates better O2 gas diffusion channels. Also, the activation polarization resistance for the ORR increased as the carbon fibers' amount from 0 to 0.03–0.04 g and then dropped. In consequence, the cathode with 0.03 g of the carbon fibers exhibited the highest ORR performance among the prepared cathodes.

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