Influence of cathodic reduction on the photoelectrochemical behaviour of titanium dioxide under UV radiation measurement of the photocurrent in chloride medium - Sorbonne Université
Article Dans Une Revue Electrochimica Acta Année : 1982

Influence of cathodic reduction on the photoelectrochemical behaviour of titanium dioxide under UV radiation measurement of the photocurrent in chloride medium

Résumé

It is established that a cathodic pretreatment of thermic titanium dioxide increases considerably the photoresponse to TiO2 under uv radiation in chloride solution. The effects of the duration of the pretreatment and of the nature of the acidic media used to perform the cathodic pretreatment are investigated. The variation law of the increase of the photocurrent with the pretreatment duration, which is the sum of two exponential laws at least, reveals the presence of various phenomena in the improvement of the energetic efficiency. The various mechanism involved there are discussed according to different hypotheses.

Domaines

Chimie

Dates et versions

hal-04718435 , version 1 (02-10-2024)

Identifiants

Citer

J.P. Frayret, A. Caprani, F. Charru, G. Momplot. Influence of cathodic reduction on the photoelectrochemical behaviour of titanium dioxide under UV radiation measurement of the photocurrent in chloride medium. Electrochimica Acta, 1982, 27 (10), pp.1525-1528. ⟨10.1016/0013-4686(82)80050-9⟩. ⟨hal-04718435⟩
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