Hydrogen reaction analysis in aqueous solutions containing H2S/CO2 at different pressures - Sorbonne Université
Article Dans Une Revue Corrosion Science Année : 2020

Hydrogen reaction analysis in aqueous solutions containing H2S/CO2 at different pressures

Résumé

The hydrogen evolution reaction (HER) in H2S and H2S/CO2 solutions at different pressures was studied using platinum and stainless steel as working electrodes, with polarization curves and electrohydrodynamic impedance. When Pt was the working electrode, the polarization curves in H2S solutions without CO2 presentedonly one current plateau, while two plateaus were seen when a mixture of H2S/CO2 was used. However, when steel was the working electrode, two plateaus always existed even in the presence of H2S without CO2. HER was interpreted by another source of H2 coming from the H2S reaction coupled to the classical direct reduction of H+.

Domaines

Chimie
Fichier non déposé

Dates et versions

hal-02926854 , version 1 (01-09-2020)

Identifiants

Citer

Pedro R.P. Viana, Flávio V.V. de Sousa, Oswaldo Barcia, Bernard Tribollet, Oscar Mattos. Hydrogen reaction analysis in aqueous solutions containing H2S/CO2 at different pressures. Corrosion Science, 2020, 176, pp.108938. ⟨10.1016/j.corsci.2020.108938⟩. ⟨hal-02926854⟩
45 Consultations
0 Téléchargements

Altmetric

Partager

More