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Article Dans Une Revue (Article De Synthèse) Molecules Année : 2023

Hybrid Photoelectrocatalytic TiO2-Co3O4/Co(OH)2 Materials Prepared from Bio-Based Surfactants for Water Splitting

Résumé

The development of new photoanode materials for hydrogen production and water treatment is in full progress. In this context, hybrid TiO2-Co3O4/Co(OH)2 photoanodes prepared using the sol–gel method using biosurfactants are currently being developed by our group. The combination of TiO2 with a cobalt-based compound significantly enhances the visible absorption and electrochemical performance of thin films, which is mainly due to an increase in the specific surface area and a decrease in the charge transfer resistance on the surface of the thin films. The formation of these composites allows for a 30-fold increase in the current density when compared to cobalt-free materials, with the best TiO2-CoN0.5 sample achieving a current of 1.570 mA.cm−2 and a theoretical H2 production rate of 0.3 µmol.min−1.cm−2 under xenon illumination.
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Dates et versions

hal-04496551 , version 1 (08-03-2024)

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Fanny Duquet, Valérie Flaud, Christina Villeneuve-Faure, Matthieu Rivallin, Florence Rouessac, et al.. Hybrid Photoelectrocatalytic TiO2-Co3O4/Co(OH)2 Materials Prepared from Bio-Based Surfactants for Water Splitting. Molecules, 2023, 28 (22), pp.7599. ⟨10.3390/molecules28227599⟩. ⟨hal-04496551⟩
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