scholarly journals Connected iridium nanoparticle catalysts coated onto silica with high density for oxygen evolution in polymer electrolyte water electrolysis

2020 ◽  
Vol 2 (1) ◽  
pp. 171-175 ◽  
Author(s):  
Yoshiyuki Sugita ◽  
Takanori Tamaki ◽  
Hidenori Kuroki ◽  
Takeo Yamaguchi
Keyword(s):  
Polymer Electrolyte ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
High Density ◽  
Nanoparticle Catalysts

Connected Ir nanoparticle catalysts without any electron-conducting support are prepared for oxygen evolution reaction in polymer electrolyte water electrolysis.

Towards a generic understanding of oxygen evolution reaction kinetics in polymer electrolyte water electrolysis

2020 ◽  
Vol 13 (7) ◽  
pp. 2153-2166 ◽  
Author(s):  
Tobias Schuler ◽  
Taro Kimura ◽  
Thomas J. Schmidt ◽  
Felix N. Büchi
Keyword(s):  
Reaction Kinetics ◽  
Kinetic Parameters ◽  
Polymer Electrolyte ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Reaction Order ◽  
Water Electrolysis ◽  
Iridium Oxide

The reaction order of water and the electro-kinetic parameters are determined for the oxygen evolution reaction on iridium oxide.

scholarly journals Oxide-supported Ir nanodendrites with high activity and durability for the oxygen evolution reaction in acid PEM water electrolyzers

2015 ◽  
Vol 6 (6) ◽  
pp. 3321-3328 ◽  
Author(s):  
Hyung-Suk Oh ◽  
Hong Nhan Nong ◽  
Tobias Reier ◽  
Manuel Gliech ◽  
Peter Strasser
Keyword(s):  
Catalytic Activity ◽  
High Activity ◽  
Polymer Electrolyte ◽  
Oxygen Evolution ◽  
Tin Oxide ◽  
Oxygen Evolution Reaction ◽  
Polymer Electrolyte Membrane ◽  
Water Electrolysis ◽  
Electrolyte Membrane

Ir nanodendrites (Ir-ND) supported on antimony doped tin oxide (ATO) show enhanced catalytic activity and stability for oxygen evolution reaction (OER) in polymer electrolyte membrane (PEM) water electrolysis.

scholarly journals The Effect of Iron Impurities on Transition Metal Catalysts for the Oxygen Evolution Reaction in Alkaline Environment: Activity Mediators or Active Sites?

2020 ◽  
Author(s):  
Ioannis Spanos ◽  
Justus Masa ◽  
Aleksandar Zeradjanin ◽  
Robert Schlögl
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Water Electrolysis ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Alkaline Water Electrolysis ◽  
Co Catalysts ◽  
Model Transition

AbstractThere is an ongoing debate on elucidating the actual role of Fe impurities in alkaline water electrolysis, acting either as reactivity mediators or as co-catalysts through synergistic interaction with the main catalyst material. This perspective summarizes the most prominent oxygen evolution reaction (OER) mechanisms mostly for Ni-based oxides as model transition metal catalysts and highlights the effect of Fe incorporation on the catalyst surface in the form of impurities originating from the electrolyte or co-precipitated in the catalyst lattice, in modulating the OER reaction kinetics, mechanism and stability. Graphic Abstract

Hierarchical Microsphere MOF Arrays with Ultralow Ir Doping for Efficient Hydrogen Evolution Coupled with Hydrazine Oxidation in Seawater

2021 ◽  
Author(s):  
Xuejun Zhai ◽  
Qingping Yu ◽  
Guishan Liu ◽  
Junlu Bi ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Efficient Catalyst ◽  
Hydrazine Oxidation ◽  
Renewable Hydrogen

Hydrogen evolution reaction (HER) based on water electrolysis is promising for renewable hydrogen production. Limited by sluggish anodic oxygen evolution reaction (OER), rational fabrication of efficient catalyst for HER coupled...

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