Kinetics and Mechanism of Hydrogen Electrode Reaction on Platinum at Elevated Temperatures

2019 ◽  
Vol 2 (29) ◽  
pp. 9-18
Author(s):  
Digby D. Macdonald ◽  
Jianer Bao ◽  
Cheng-Lung Liao ◽  
Rodrigo E. Vilar Martinez
Keyword(s):  
Elevated Temperatures ◽  
Electrode Reaction ◽  
Kinetics And Mechanism ◽  
Hydrogen Electrode

Electrochemical Study of Hydrogen Electrode Reaction Kinetics on LmNi3.55Co0.75Mn0.4Al0.3 Alloy Electrode

2005 ◽  
Vol 494 ◽  
pp. 205-210
Author(s):  
N. Potkonjak ◽  
D. Sužnjević ◽  
B.R. Simonović ◽  
S. Mentus
Keyword(s):  
Charge Transfer ◽  
Hydrogen Content ◽  
Current Density ◽  
Elevated Temperatures ◽  
Hydrogen Diffusion ◽  
Electrode Reaction ◽  
Alloy Electrode ◽  
Charge Transfer Reaction ◽  
Hydrogen Electrode ◽  
Experimental Conditions

The exchange current density and the peak current density of the hydrogen electrode reaction on LmNi3.55Co0.75Mn0.4Al0.3 alloy electrode in an aqueous 1M KOH solution, at low hydrogen contents (<0.1 H/M) and elevated temperatures (42-60°C), were studied using potentiostatic polarization techniques. Both measured quantities increased linearly with the increase in hydrogen content in the alloy. On the basis of the difference between the activation energy of the charge transfer and the hydrogen diffusion, it was concluded that the charge transfer reaction represented the rate-determining step of the hydrogen electrode reaction under applied experimental conditions. The decrease of each of these two activation energies with increasing hydrogen content was evidenced, which indicated the existence of other processes occurring in the electrode bulk accompanying the hydrogen diffusion.

scholarly journals Reaction Route of Hydrogen Electrode Reaction on Platinum

1990 ◽  
Vol 58 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Hideaki KITA ◽  
Shen YE ◽  
Akiko ARAMATA
Keyword(s):  
Electrode Reaction ◽  
Hydrogen Electrode ◽  
Reaction Route

Hydrogen electrode reaction on electrodes of glassy carbon-supported ultrafine Pd particles in alkaline media

1992 ◽  
Vol 37 (13) ◽  
pp. 2427-2432 ◽  
Author(s):  
Naokazu Tateishi ◽  
Kiyochika Yahikozawa ◽  
Katsunori Nishimura ◽  
Yoshio Takasu
Keyword(s):  
Glassy Carbon ◽  
Electrode Reaction ◽  
Alkaline Media ◽  
Hydrogen Electrode
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