A unified treatment of the electrochemical photo effect at metal electrodes

1971 ◽  
Vol 24 (1) ◽  
pp. 1 ◽  
Author(s):  
DB Matthews
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrode Potential ◽  
Absorption Process ◽  
Radiation Frequency ◽  
Metal Electrodes ◽  
Photo Effect ◽  
Electrochemical Charge Transfer ◽  
Proton Discharge

The electrochemical photo effect is analysed in terms of the Gurney model of electrochemical charge transfer. Various absorption processes and their effect on the proton discharge step of the hydrogen evolution reaction are treated and the dependence of the photo effect on radiation frequency and electrode potential is derived for each absorption process. The analysis is compared with the presently available experimental results and a useful application of the photo effect is outlined.

Correlation of Exchange Current Density j₀ and the Standard Potential of the Metal Electrodes EM⁰ for the Hydrogen Evolution Reaction (HER)

2020 ◽  
Vol MA2020-01 (46) ◽  
pp. 2604-2604
Author(s):  
Daniel Lee Parr ◽  
Kasun Dadallagei ◽  
Sidney J. DeBie ◽  
Joshua R Coduto ◽  
Christian D Haas ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Exchange Current ◽  
Exchange Current Density ◽  
Standard Potential ◽  
Metal Electrodes

Designed synthesis of WC-based nanocomposites as low-cost, efficient and stable electrocatalysts for the hydrogen evolution reaction

CrystEngComm ◽  
2020 ◽  
Vol 22 (27) ◽  
pp. 4580-4590 ◽  
Author(s):  
Zepeng Lv ◽  
Dong Liu ◽  
Weiqian Tian ◽  
Jie Dang
Keyword(s):  
Particle Size ◽  
Graphene Oxide ◽  
Charge Transfer ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Low Cost ◽  
Reduced Graphene ◽  
Cost Efficient ◽  
Designed Synthesis

In this study, effectively conductive rGO (reduced graphene oxide) was used as the supporter both to promote charge transfer and to refine particle size of WC, to realize efficient and stable HER performance.

Correlation of Exchange Current Density j₀ and the Standard Potential of the Metal Electrodes E0 M : A Different View of the Hydrogen Evolution Reaction (HER)

2021 ◽  
Vol MA2021-01 (46) ◽  
pp. 1864-1864
Author(s):  
Daniel Parr ◽  
Kasun Saweendra Rathnatunga Dadallagei ◽  
Sidney Debie ◽  
Joshua Richard Coduto ◽  
Christian D Haas ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Exchange Current ◽  
Exchange Current Density ◽  
Standard Potential ◽  
Metal Electrodes

scholarly journals On the extrema on the potential dependence of the charge transfer resistance in the hydrogen evolution reaction

2021 ◽  
Vol 11 (2) ◽  
pp. 154-164
Author(s):  
Vladimir I. Kichigin ◽  
Keyword(s):  
Charge Transfer ◽  
Kinetic Parameters ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Charge Transfer Resistance ◽  
Adsorbed Hydrogen ◽  
Transfer Coefficients ◽  
Transfer Resistance ◽  
Kinetic Information ◽  
Cathodic Region

The shape of the charge transfer resistance Rct versus overpotentialh curves for the hydrogen evolution reaction (Volmer – Heyrovsky mechanism, Langmuir isotherm for adsorbed hydrogen) was analyzed. It was shown that, depending on the kinetic parameters of reaction steps, three cases are possible: (i) there are no extrema on these curves; (ii) there is one maximum; (iii) there are a minimum and a maximum. Some ways for obtaining kinetic parameters from the curves with extrema are discussed. It was shown that the rate constants and transfer coefficients of all steps can be determined from logRct–h curve alone if there are a minimum and maximum of Rct in cathodic region. In the absence of the extrema, the amount of kinetic information gained from logRct–h plots is considerably reduced.

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