Toward the Rational Benchmarking of Homogeneous H2-Evolving Catalysts.
Molecular electrocatalysts for H2evolution are usually studied under various conditions (solvent, proton sources) that prevent direct comparison of their performances. We provide here a rational method for such a benchmark based on (i) the recent analysis of the current-potential response for two-electron-two-step mechanisms and (ii) the derivation of catalytic Tafel plots reflecting the interdependency of turnover frequency and overpotential based on the intrinsic properties of the catalyst, independently of contingent factors such as the cell characteristics. Such a methodology is exemplified on a series of molecular catalysts among the most efficient in recent literature.
Univ Grenoble Alpes, CNRS and CEA, Laboratoire de Chimie et Biologie des Métaux, 17 rue des martyrs 38000 Grenoble, France.
Vincent
V
Artero
Université Paris Diderot, Sorbonne Paris Cité, Laboratoire d'Electrochimie Moléculaire, Unité Mixte de Recherche Université - CNRS No 7591, Bâtiment Lavoisier, 15 rue Jean de Baïf, 75205 Paris Cedex 13, France.
Jean-Michel
JM
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