Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S
International audience This paper compares the cathodic reactions occurring on steel in an oxygen-free aqueous solution containing dissolved H 2 S or dissolved CO 2. It is well admitted that the rate of the cathodic reaction is enhanced in aqueous solutions containing dissolved CO 2 , in comparison...
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ftsorbonneuniv:oai:HAL:hal-02475457v1 2024-09-15T18:01:37+00:00 Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S Kittel, J. Ropital, Francois Grosjean, François Sutter, E. Tribollet, B. IFP Energies nouvelles (IFPEN) Laboratoire Interfaces et Systèmes Electrochimiques (LISE) Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Istanbul, Turkey 2012-09-09 https://ifp.hal.science/hal-02475457 https://ifp.hal.science/hal-02475457/document https://ifp.hal.science/hal-02475457/file/1124_Kittel_cathodic-contribution-H2S.pdf en eng HAL CCSD hal-02475457 https://ifp.hal.science/hal-02475457 https://ifp.hal.science/hal-02475457/document https://ifp.hal.science/hal-02475457/file/1124_Kittel_cathodic-contribution-H2S.pdf info:eu-repo/semantics/OpenAccess Eurocorr 2012 https://ifp.hal.science/hal-02475457 Eurocorr 2012, Sep 2012, Istanbul, Turkey [CHIM.MATE]Chemical Sciences/Material chemistry info:eu-repo/semantics/conferenceObject Conference papers 2012 ftsorbonneuniv 2024-07-25T23:48:00Z International audience This paper compares the cathodic reactions occurring on steel in an oxygen-free aqueous solution containing dissolved H 2 S or dissolved CO 2. It is well admitted that the rate of the cathodic reaction is enhanced in aqueous solutions containing dissolved CO 2 , in comparison with strong acid solutions at the same pH [1-6]. In a previous paper [7], the authors have shown that this phenomenon appears only in the mass transfer limitation region, where the transport of carbonic acid is added to the transport of proton. In the case of H 2 S containing solutions, this chemical mechanism is no more sufficient to explain the cathodic polarization curves. An additional electrochemical reaction is clearly observed, with strong links with H 2 S concentration. Conference Object Carbonic acid HAL Sorbonne Université |
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HAL Sorbonne Université |
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ftsorbonneuniv |
language |
English |
topic |
[CHIM.MATE]Chemical Sciences/Material chemistry |
spellingShingle |
[CHIM.MATE]Chemical Sciences/Material chemistry Kittel, J. Ropital, Francois Grosjean, François Sutter, E. Tribollet, B. Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S |
topic_facet |
[CHIM.MATE]Chemical Sciences/Material chemistry |
description |
International audience This paper compares the cathodic reactions occurring on steel in an oxygen-free aqueous solution containing dissolved H 2 S or dissolved CO 2. It is well admitted that the rate of the cathodic reaction is enhanced in aqueous solutions containing dissolved CO 2 , in comparison with strong acid solutions at the same pH [1-6]. In a previous paper [7], the authors have shown that this phenomenon appears only in the mass transfer limitation region, where the transport of carbonic acid is added to the transport of proton. In the case of H 2 S containing solutions, this chemical mechanism is no more sufficient to explain the cathodic polarization curves. An additional electrochemical reaction is clearly observed, with strong links with H 2 S concentration. |
author2 |
IFP Energies nouvelles (IFPEN) Laboratoire Interfaces et Systèmes Electrochimiques (LISE) Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Kittel, J. Ropital, Francois Grosjean, François Sutter, E. Tribollet, B. |
author_facet |
Kittel, J. Ropital, Francois Grosjean, François Sutter, E. Tribollet, B. |
author_sort |
Kittel, J. |
title |
Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S |
title_short |
Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S |
title_full |
Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S |
title_fullStr |
Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S |
title_full_unstemmed |
Hydrogen evolution in aqueous solutions containing dissolved H2S : Evidence of direct electroactive contribution of H2S |
title_sort |
hydrogen evolution in aqueous solutions containing dissolved h2s : evidence of direct electroactive contribution of h2s |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://ifp.hal.science/hal-02475457 https://ifp.hal.science/hal-02475457/document https://ifp.hal.science/hal-02475457/file/1124_Kittel_cathodic-contribution-H2S.pdf |
op_coverage |
Istanbul, Turkey |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Eurocorr 2012 https://ifp.hal.science/hal-02475457 Eurocorr 2012, Sep 2012, Istanbul, Turkey |
op_relation |
hal-02475457 https://ifp.hal.science/hal-02475457 https://ifp.hal.science/hal-02475457/document https://ifp.hal.science/hal-02475457/file/1124_Kittel_cathodic-contribution-H2S.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1810438734695366656 |