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Article Dans Une Revue Journal of The Electrochemical Society Année : 2022

Regeneration of Electrocatalyst through Li-Ion Insertion

Résumé

Anatase TiO 2 structure has been widely studied as an electrode for Li-ion battery and as electrocatalyst for water splitting. Inserting guest species into TiO 2 has been demonstrated as an effective approach to tune the electronic structure and consequently improves the hydrogen evolution reaction (HER) catalytic activity. In this work, by using mesoporous TiO 2 electrodes, we have demonstrated the interplays between HER and Li-ion insertion in Water-in-Salt Electrolyte (WISE). Low C-rates favor the electro-catalytic reaction (HER), but the latter does also depend on the amount of Li in the electrode. Finally, this study guides the experimental conditions for an optimum functioning either in battery environment or in electro-catalysis.

Domaines

Chimie

Dates et versions

hal-03857154 , version 1 (17-11-2022)

Identifiants

Citer

Jérémy Sum, Olivier Durupthy, Natacha Krins, Christel Laberty-Robert. Regeneration of Electrocatalyst through Li-Ion Insertion. Journal of The Electrochemical Society, 2022, 169 (3), pp.030522. ⟨10.1149/1945-7111/ac5ad4⟩. ⟨hal-03857154⟩
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