Article Dans Une Revue The Journal of Chemical Physics Année : 2024

Hybrid mesoporous electrodes evidence CISS effect on water oxidation

Priscila Vensaus
Yunchang Liang
Nicolas Zigon
Narcis Avarvari
Vladimiro Mujica
Galo Soler-Illia
  • Fonction : Auteur

Résumé

Controlling product selectivity is essential for improving the efficiency of multi-product reactions. Electrochemical water oxidation is a reaction of main importance in different applications, e.g., renewable energy schemes and environmental protection, where H2O2 and O2 are the two principal products. In this Communication, the product selectivity of electrochemical water oxidation was controlled by making use of the chiral induced spin selectivity (CISS) effect at mesoporous-TiO2 on the molecule-modified Au substrate. Our results show a decrease in H2O2 formation when using chiral hetero-helicene molecules adsorbed on the Au substrate. We propose a mechanism for this kinetic effect based on the onset of CISS-induced spin polarization on the Au–helicene chiral interface. We also present a new tunable substrate to investigate the CISS mechanism.

Domaines

Chimie
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Dates et versions

hal-04797425 , version 1 (22-11-2024)

Identifiants

Citer

Priscila Vensaus, Yunchang Liang, Nicolas Zigon, Narcis Avarvari, Vladimiro Mujica, et al.. Hybrid mesoporous electrodes evidence CISS effect on water oxidation. The Journal of Chemical Physics, 2024, 160 (11), ⟨10.1063/5.0199339⟩. ⟨hal-04797425⟩
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