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Morphology and surface heterogeneities in synthetic goethites Texte intégral
2003
Prelot, Benedicte | Villiéras, Frédéric | Pelletier, Manuel | Gérard, Gilles | Gaboriaud, Fabien | Ehrhardt, J.-J. | Perrone, J. | Fedoroff, M. | Jeanjean, J. | Lefèvre, Grégory | Mazérolles, Léo | Pastol, Jean Louis | Rouchaud, J.C. | Lindecker, C. | Laboratoire Environnement et Minéralurgie (LEM) ; Institut National Polytechnique de Lorraine (INPL)-Centre National de la Recherche Scientifique (CNRS) | Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME) ; Institut de Chimie - CNRS Chimie (INC-CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) | Gestion Territoriale de l'Eau et de l'environnement (UMR GESTE) ; École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Institut de Chimie et des Matériaux Paris-Est (ICMPE) ; Institut de Chimie - CNRS Chimie (INC-CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS) | Institut de Physique Nucléaire d'Orsay (IPNO) ; Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) | GdR PRACTIS | GdR PARIS
International audience | In the framework on a study of the acido-basic and sorption properties of iron oxides, a thorough characterization of two types of goethite powders was performed in several laboratories joined in a common project. Chemical analysis by ICPAES; high-resolution SEM, TEM, and AFM observations; XRD with line width analysis; and argon and nitrogen sorption isotherms were used for that purpose. The main crystallographic faces of goethite particles could be identified as {001}, {101}, and {121}, and their abundance correlated with the distribution of low-pressure argon adsorption local isotherms. These results will be very useful for further studies on the relationship between surface reactivity in aqueous solution and orientation of solid surfaces.
Afficher plus [+] Moins [-]Morphology and surface heterogeneities in synthetic goethites Texte intégral
2003
Prelot, Benedicte | Villiéras, Frédéric | Pelletier, Manuel | Gérard, Gilles | Gaboriaud, Fabien | Ehrhardt, J.-J. | Perrone, J. | Fedoroff, M. | Jeanjean, J. | Lefèvre, Grégory | Mazérolles, Léo | Pastol, Jean Louis | Rouchaud, J.C. | Lindecker, C.
International audience | In the framework on a study of the acido-basic and sorption properties of iron oxides, a thorough characterization of two types of goethite powders was performed in several laboratories joined in a common project. Chemical analysis by ICPAES; high-resolution SEM, TEM, and AFM observations; XRD with line width analysis; and argon and nitrogen sorption isotherms were used for that purpose. The main crystallographic faces of goethite particles could be identified as {001}, {101}, and {121}, and their abundance correlated with the distribution of low-pressure argon adsorption local isotherms. These results will be very useful for further studies on the relationship between surface reactivity in aqueous solution and orientation of solid surfaces.
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