scholarly journals Extracting the kinetic parameters of the hydrogen evolution reaction at Pt in acidic media by means of dynamic multi-frequency analysis

2019 ◽  
Vol 308 ◽  
pp. 328-336 ◽  
Author(s):  
Dominique Koster ◽  
Aleksandar R. Zeradjanin ◽  
Alberto Battistel ◽  
Fabio La Mantia
Keyword(s):  
Kinetic Parameters ◽  
Hydrogen Evolution ◽  
Frequency Analysis ◽  
Hydrogen Evolution Reaction ◽  
Acidic Media

Few-layer FePS3 decorated with thin MoS2 nanosheets for efficient hydrogen evolution reaction in alkaline and acidic media

2020 ◽  
Vol 525 ◽  
pp. 146623 ◽  
Author(s):  
Hongjiao Huang ◽  
Junnan Song ◽  
Deshuang Yu ◽  
Yanan Hao ◽  
Yonghan Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Mos2 Nanosheets ◽  
Acidic Media

Enhancing metal–support interaction by in situ ion-exchanging strategy for high performance Pt catalysts in hydrogen evolution reaction

2020 ◽  
Vol 8 (32) ◽  
pp. 16582-16589 ◽  
Author(s):  
Xulei Sui ◽  
Lei Zhang ◽  
Junjie Li ◽  
Kieran Doyle-Davis ◽  
Ruying Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Pt Catalysts ◽  
Acidic Media ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Metal Support Interactions

A facile in situ ion-exchanging strategy directly enhances metal–support interactions between Pt and support and promotes HER electrocatalytic performance in acidic media.

Efficient Electrocatalyst for Hydrogen Evolution Reaction based on N-rGO-MWCNT/CuAlO2 Nanocomposite in Acidic Media

2021 ◽  
Author(s):  
Karthi keyan Arjunan ◽  
Rajakumaran Ramachandran ◽  
Sakthinathan Subramanian ◽  
Shen-Ming Chen ◽  
Te-Wei Chiu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Acidic Media

On the Dominating Mechanism of the Hydrogen Evolution Reaction at Polycrystalline Pt Electrodes in Acidic Media

ACS Catalysis ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 9456-9462 ◽  
Author(s):  
Sebastian Watzele ◽  
Johannes Fichtner ◽  
Batyr Garlyyev ◽  
Jan N. Schwämmlein ◽  
Aliaksandr S. Bandarenka
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Acidic Media ◽  
Pt Electrodes

Influence of adsorption of organic compounds and surface heterogeneity on the hydrogen evolution reaction

1997 ◽  
Vol 75 (11) ◽  
pp. 1615-1623 ◽  
Author(s):  
Andrzej Lasia
Keyword(s):  
Kinetic Parameters ◽  
Hydrogen Evolution ◽  
Organic Compounds ◽  
Hydrogen Evolution Reaction ◽  
Surface Heterogeneity ◽  
Adsorbed Hydrogen ◽  
Heterogeneous Surfaces ◽  
Tafel Slopes ◽  
Adsorption Energies ◽  
Temkin Adsorption Isotherm

The hydrogen evolution reaction on rough or porous surfaces often leads to low Tafel slopes that cannot be explained in terms of the Volmer–Heyrovsky–Tafel mechanism. In addition, adsorption of organic compounds and ions causes an increase in the Tafel slopes. To explain such behavior, a concept of distribution of adsorption energies on heterogeneous surfaces, leading to a distributed kinetics, was studied. Simulations of the dependence of the current and the surface coverage by adsorbed hydrogen on overpotential are presented for different values of the kinetic parameters in the absence and presence of the adsorbed foreign substances. These results were compared with those obtained using the Frumkin/Temkin adsorption isotherm. It was found that for some kinetic parameters and a flat distribution of adsorption energies, low Tafel slopes, similar to those observed experimentally, are obtained. Keywords: hydrogen evolution, adsorption, heterogeneous surfaces, distributed kinetics, Frumkin/Temkin isotherm.

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