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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ftifpen:oai:HAL:hal-02464651v1 2024-05-12T08:02:20+00:00 Hydrogen evolution in aqueous solutions containing dissolved H2S: Evidence of direct electroactive contribution of H2S Kittel, J. Ropital, F. Grosjean, F. Sutter, Eliane Tribollet, Bernard 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) Istambul, Turkey 2012-09-09 https://ifp.hal.science/hal-02464651 https://ifp.hal.science/hal-02464651/document https://ifp.hal.science/hal-02464651/file/1124_Kittel_cathodic-contribution-H2S.pdf en eng HAL CCSD hal-02464651 https://ifp.hal.science/hal-02464651 https://ifp.hal.science/hal-02464651/document https://ifp.hal.science/hal-02464651/file/1124_Kittel_cathodic-contribution-H2S.pdf info:eu-repo/semantics/OpenAccess Eurocorr 2012 https://ifp.hal.science/hal-02464651 Eurocorr 2012, Sep 2012, Istambul, Turkey [CHIM.MATE]Chemical Sciences/Material chemistry [CHIM]Chemical Sciences info:eu-repo/semantics/conferenceObject Conference papers 2012 ftifpen 2024-04-17T23:59:11Z 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 IFP Énergies nouvelles: HAL-IFPEN |
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IFP Énergies nouvelles: HAL-IFPEN |
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ftifpen |
language |
English |
topic |
[CHIM.MATE]Chemical Sciences/Material chemistry [CHIM]Chemical Sciences |
spellingShingle |
[CHIM.MATE]Chemical Sciences/Material chemistry [CHIM]Chemical Sciences Kittel, J. Ropital, F. Grosjean, F. Sutter, Eliane Tribollet, Bernard Hydrogen evolution in aqueous solutions containing dissolved H2S: Evidence of direct electroactive contribution of H2S |
topic_facet |
[CHIM.MATE]Chemical Sciences/Material chemistry [CHIM]Chemical Sciences |
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, F. Grosjean, F. Sutter, Eliane Tribollet, Bernard |
author_facet |
Kittel, J. Ropital, F. Grosjean, F. Sutter, Eliane Tribollet, Bernard |
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-02464651 https://ifp.hal.science/hal-02464651/document https://ifp.hal.science/hal-02464651/file/1124_Kittel_cathodic-contribution-H2S.pdf |
op_coverage |
Istambul, Turkey |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Eurocorr 2012 https://ifp.hal.science/hal-02464651 Eurocorr 2012, Sep 2012, Istambul, Turkey |
op_relation |
hal-02464651 https://ifp.hal.science/hal-02464651 https://ifp.hal.science/hal-02464651/document https://ifp.hal.science/hal-02464651/file/1124_Kittel_cathodic-contribution-H2S.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1798844428144607232 |