Journal
CURRENT OPINION IN ELECTROCHEMISTRY
Volume 42, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.coelec.2023.101402
Keywords
Surface coverages; Electrocatalysis; Pourbaix diagrams; Resting state; Computational chemistry
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This article highlights the importance of assessing the resting state of electrocatalysts in electrocatalysis and discusses the method of constructing energy diagrams to achieve this. It also discusses the limitations of current models and the prospects for further developments in the field.
In the last few decades, the research community has witnessed a renewed and increasing interest in electrocatalysis as a powerful tool to sustainably produce chemicals and fuels using renewable electricity. While computational studies can accelerate the discovery of more efficient and cheaper electrocatalysts, they may decelerate the process if unphysical models are used to describe chemical reactivity on the electrode surface. In this opinion piece, we highlight the importance of assessing the resting state of electrocatalysts under reaction conditions, and outline how this can be achieved through the construction of energy diagrams which portray the relative stability of surface coverages that are likely to form in aqueous electrolytes at different applied potentials and pH values. Lastly, we discuss the limitations of the current models and the prospects for further developments in the field.
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