Voltammetry of Microparticles and in situ microRaman measurements under potentiostatic conditions. I. Spectroelectrochemical behaviour of Prussian blue, PbO and Bi 2 O 3 - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Electrochimica Acta Année : 2017

Voltammetry of Microparticles and in situ microRaman measurements under potentiostatic conditions. I. Spectroelectrochemical behaviour of Prussian blue, PbO and Bi 2 O 3

Résumé

The results obtained with solid electroactive microparticles immobilized on a graphite electrode surface using cyclic voltammetry and in situ microRaman measurements at selected potentials allowed us to complete the understanding of the spectroelectrochemical behaviours of Prussian blue, β-PbO and Bi2O3. In the case of Prussian blue, we provided a simple but complete analysis of the Raman spectral data for the species Fe[Fe(CN)6] and K2Fe[Fe(CN)6]. The investigation of PbO in neutral chloride media showed that Pb(OH)Cl is the Pb° electrochemical oxidation product whereas the study of Bi2O3 demonstrated that the oxidation of Bi° in alkaline solutions leads essentially to amorphous Bi(OH)3.
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hal-01639184 , version 1 (20-11-2017)

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Hugues Aubriet, Bernard Humbert, Michel Perdicakis. Voltammetry of Microparticles and in situ microRaman measurements under potentiostatic conditions. I. Spectroelectrochemical behaviour of Prussian blue, PbO and Bi 2 O 3. Electrochimica Acta, 2017, 257, pp.128 - 137. ⟨10.1016/j.electacta.2017.10.009⟩. ⟨hal-01639184⟩
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