Electrochemical Quartz Crystal Microbalance Analysis of the Oxygen Reduction Reaction on Pt-Based Electrodes. Part 2: Adsorption of Oxygen Species and ClO4– Anions on Pt and Pt–Co Alloy in HClO4 Solutions

Langmuir ◽  
2014 ◽  
Vol 30 (1) ◽  
pp. 432-439 ◽  
Author(s):  
J. Omura ◽  
H. Yano ◽  
D. A. Tryk ◽  
M. Watanabe ◽  
H. Uchida
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Reduction Reaction ◽  
Oxygen Species

scholarly journals Transient study of the oxygen reduction reaction on reduced Pt and Pt alloys microelectrodes: evidence for the reduction of pre-adsorbed oxygen species linked to dissolved oxygen

2015 ◽  
Vol 17 (44) ◽  
pp. 30005-30012 ◽  
Author(s):  
S. C. Perry ◽  
G. Denuault
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Adsorbed Oxygen ◽  
Oxygen Species ◽  
Adsorbed Oxygen Species ◽  
Pt Alloys ◽  
Transient Study ◽  
Microdisc Electrodes

Below 100 ms the reduction of oxygen on oxide-free Pt microdisc electrodes reveals the existence of oxygen species which adsorb on the electrode before the reduction is electrochemically driven.

Evaluation of the dynamic electrochemical stability of ionic liquid–metal interfaces against reactive oxygen species using an in situ electrochemical quartz crystal microbalance

RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 31826-31836 ◽  
Author(s):  
Chunhui Xiao ◽  
Abdul Rehman ◽  
Xiangqun Zeng
Keyword(s):  
Reactive Oxygen Species ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Superoxide Radical ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Electrochemical Stability ◽  
Oxygen Species ◽  
Dynamic Interactions ◽  
Metal Interfaces

The dynamic interactions between the electrochemically generated superoxide radical (O2˙−) and three structurally different ionic liquids (ILs) were characterized using an electrochemical quartz crystal microbalance.

scholarly journals The oxygen reduction reaction (ORR) on reduced metals: evidence for a unique relationship between the coverage of adsorbed oxygen species and adsorption energy

2016 ◽  
Vol 18 (15) ◽  
pp. 10218-10223 ◽  
Author(s):  
S. C. Perry ◽  
G. Denuault
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Adsorption Energy ◽  
Reduction Reaction ◽  
Adsorbed Oxygen ◽  
Oxygen Species ◽  
Adsorbed Oxygen Species ◽  
Unique Relationship

The ORR current follows a volcano-like dependence on the coverage of oxygen species that adsorb upon exposure to dissolved oxygen and on their adsorption energy.

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