Dissociating Water at n-Si Photoanodes Partially Covered with Fe Catalysts - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Advanced Energy Materials Année : 2020

Dissociating Water at n-Si Photoanodes Partially Covered with Fe Catalysts

Résumé

Stable, efficient, and low-cost photoanodes are urgently required for manufacturing water-splitting photoelectrochemical cells. Although silicon is a promising photoelectrode substrate, photocorrosion prevents its use in such devices, especially when employed as photoanodes for the oxygen evolution reaction (OER). Here, it is shown that Fe nanoparticles (NPs), deposited by cathodic electrodeposition onto n-Si, can promote hole transfer for the OER. The influence of the surface coverage, the Si structure, as well as the electrolyte are studied here in detail. It is reported that the NP density and the Si structuration drastically affect the photoelectrochemical performance and that the electrolyte influences the stability, allowing operation times as long as 130 h for these inhomogeneously coated photoelectrodes.
Fichier principal
Vignette du fichier
revised-MS-nonMarked.pdf (7.97 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02438527 , version 1 (05-11-2020)

Identifiants

Citer

Kiseok Oh, Vincent Dorcet, Bruno Fabre, Gabriel Loget. Dissociating Water at n-Si Photoanodes Partially Covered with Fe Catalysts. Advanced Energy Materials, 2020, 10 (3), pp.1902963. ⟨10.1002/aenm.201902963⟩. ⟨hal-02438527⟩
76 Consultations
164 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More