Electrochemical kinetics of the Ti(IV)/Ti(III) couple in sulfuric acid

Nicolas Fatouros (1) , Denise Krulic (1) , Nathalie Larabi (1)

1 LI2C - Liquides Ioniques et Interfaces Chargées

The kinetics of the Ti(IV)/Ti(III) couple in 0.4–9 M H2SO4 were investigated at the mercury drop electrode using dc polarography and square wave voltammetry with forward and reverse scans. The experimental results obtained at low and at high H2SO4 concentrations were modelled and interpreted quantitatively on the basis of a CE–ECE reaction scheme. Indications on the nature of the electroactive forms of Ti(IV) in H2SO4 are also given.

Domaines: Chimie théorique et/ou physique

Nicolas Fatouros, Denise Krulic, Nathalie Larabi. Electrochemical kinetics of the Ti(IV)/Ti(III) couple in sulfuric acid. Journal of Electroanalytical Chemistry, 2004, 568, pp.55-64. ⟨10.1016/j.jelechem.2004.01.006⟩. ⟨hal-00162666⟩