%0 Journal Article %T Hydrogen evolution in aqueous solutions containing dissolved CO2: Quantitative contribution of the buffering effect %+ IFP Energies nouvelles (IFPEN) %+ Laboratoire Interfaces et Systèmes Electrochimiques (LISE) %A Remita, Elias %A Tribollet, Bernard %A Eliane, Sutter %A Vivier, Vincent %A Ropital, Francois %A Kittel, Jean %< avec comité de lecture %@ 0010-938X %J Corrosion Science %I Elsevier %V 50 %N 5 %P 1433-1440 %8 2008-05 %D 2008 %R 10.1016/j.corsci.2007.12.007 %Z Chemical SciencesJournal articles %X The hydrogen evolution reaction (HER) occurring on steel in an oxygen-free aqueous solution containing dissolved CO2 was investigated. This reaction was modelled by taking into account the two dissociation reactions of dissolved CO2. The mathematical problem was solved numerically using a finite element method (FEM). A fair agreement between the measurements performed on a steel rotating disc electrode and the theoretical calculations was obtained. Thus, the cathodic behaviour of steel in CO2-containing solutions can be fully explained by the buffering effect induced by the presence of CO2. Some interfacial pH measurements performed on a gold electrode also support this conclusion. %G English %L hal-02419557 %U https://ifp.hal.science/hal-02419557 %~ IFP %~ CNRS %~ LISE %~ INC-CNRS %~ SORBONNE-UNIVERSITE %~ SU-INF-2018 %~ SU-SCIENCES %~ ALLIANCE-SU %~ TEST2-HALCNRS %~ CHIMIE-SU