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The research aims to analyze hydrogen chemisorption energies to elucidate trends in exchange current for hydrogen evolution.

Trends in the Exchange Current for Hydrogen Evolution

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The research aims to analyze hydrogen chemisorption energies to elucidate trends in exchange current for hydrogen evolution.
Developed a database using density functional theory to calculate hydrogen chemisorption energies on metal surfaces.
Plotted measured exchange currents against calculated hydrogen adsorption energies to derive a volcano curve.
Constructed a kinetic model to explain the origins of the observed volcanic behavior.
A volcano curve illustrates the relationship between exchange currents and hydrogen adsorption energies.
Platinum is identified as the most effective electrocatalyst for hydrogen evolution, based on the evaluated trends.
The kinetic model successfully explains the observed exchange current trends.

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Density functional theory evaluates hydrogen adsorption energies in metals, revealing electrocatalytic trends.

Nørskov et al. (2005) studied this question.

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