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Antoine Géhin
Researcher at University of Grenoble
Publications - 32
Citations - 1818
Antoine Géhin is an academic researcher from University of Grenoble. The author has contributed to research in topics: Ferric & Fougèrite. The author has an hindex of 20, co-authored 30 publications receiving 1605 citations. Previous affiliations of Antoine Géhin include Centre national de la recherche scientifique & Nancy-Université.
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Journal ArticleDOI
Electron transfer at the mineral/water interface: Selenium reduction by ferrous iron sorbed on clay
Laurent Charlet,Andreas C. Scheinost,Christophe Tournassat,Jean-Marc Greneche,Antoine Géhin,Alejandro Fernandez-Martinez,S. Coudert,Delphine Tisserand,Jocelyne Brendle +8 more
TL;DR: In this article, the authors investigated the long-term kinetics of selenite ( Se(IV)O 3 - ) sorption to montmorillonite in the presence of Fe2+ under anoxic conditions.
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Iron(II,III) hydroxycarbonate green rust formation and stabilization from lepidocrocite bioreduction.
Georges Ona-Nguema,Mustapha Abdelmoula,Frédéric Jorand,Omar Benali,Antoine Géhin,Jean-Claude Block,Jean-Marie R. Génin +6 more
TL;DR: Bioreduction of the well-crystallized ferric oxyhydroxide gamma-FeOOH lepidocrocite investigated in batch cultures confirms that GR is metastable with respect to magnetite in the presence of gamma- FeOOH.
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Redox potential measurements and Mössbauer spectrometry of FeII adsorbed onto FeIII (oxyhydr)oxides
Ewen Silvester,Laurent Charlet,Christophe Tournassat,Antoine Géhin,Jean-Marc Greneche,Emmanuelle Liger +5 more
TL;DR: In this paper, the redox properties of FeII adsorbed onto a series of FeIII (oxyhydr)oxides (goethite, lepidocrocite, nano-sized ferric oxide hydrate (nano-FOH), and hydrous ferric oxides (HFO)) have been investigated by rest potential measurements at a platinum electrode, as a function of pH (−log 10[H+]) and surface coverage.
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Coprecipitation of Fe(II–III) hydroxycarbonate green rust stabilised by phosphate adsorption
Florent Bocher,Antoine Géhin,Christian Ruby,Jaafar Ghanbaja,Mustapha Abdelmoula,Jean-Marie R. Génin +5 more
TL;DR: In this article, a green rust one, GR1(CO32−), was synthesised by coprecipitation in the presence of phosphate by dissolving a Na2HPO4 salt, and the resulting product is a mixture of Fe(II-III) hydroxysalt, magnetite Fe3O4 and ferrous hydroxide Fe(OH)2.
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Synthesis of Fe(II-III) hydroxysulphate green rust by coprecipitation
Antoine Géhin,Christian Ruby,Mustapha Abdelmoula,Omar Benali,Omar Benali,Jaafar Ghanbaja,Philippe Refait,Jean-Marie R. Génin +7 more
TL;DR: In this paper, a coprecipitation that consists of mixing solutions of iron(II) and iron(III) salts with NaOH solution in adequate proportions was used to obtain the FeII4FeIII2(OH)12]2+·[SO2−4 ·m H2O]2−.