Levard Clément, Masion Armand, Rose Jérôme, Doelsch Emmanuel, Borschneck Daniel, Olivi Luca, Chaurand Perrine, Dominici Christian, Ziarelli Fabio, Thill Antoine, Maillet Perrine, Bottero Jean Yves. 2011. Synthesis of Ge-imogolite: influence of the hydrolysis ratio on the structure of the nanotubes. PCCP. Physical Chemistry Chemical Physics, 13 (32) : 14516-14522.
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Quartile : Q1, Sujet : PHYSICS, ATOMIC, MOLECULAR & CHEMICAL / Quartile : Q2, Sujet : CHEMISTRY, PHYSICAL
Résumé : The synthesis protocol for Ge-imogolite (aluminogermanate nanotubes) consists of 3 main steps: base hydrolysis of a solution of aluminum and germanium monomers, stabilization of the suspension and heating at 95 °C. The successful synthesis of these nanotubes was found to be sensitive to the hydrolysis step. The impact of the hydrolysis ratio (from nOH/nAl = 0.5 to 3) on the final product structure was examined using a combination of characterization tools. Thus, key hydrolysis ratios were identified: nOH/nAl = 1.5 for the formation of nanotubes with structural defects, nOH/nAl = 2 for the synthesis of a well crystallized Ge imogolite and nOH/nAl > 2.5 where nanotube formation is hindered. The capability of controlling the degree of the nanotube's crystallinity opens up interesting opportunities in regard to new potential applications.
Mots-clés Agrovoc : structure chimique, synthèse chimique
Mots-clés complémentaires : Nanotube
Classification Agris : 000 - Autres thèmes
Champ stratégique Cirad : Hors axes (2005-2013)
Auteurs et affiliations
- Levard Clément, Université d'Aix-Marseille (FRA)
- Masion Armand, Université d'Aix-Marseille (FRA)
- Rose Jérôme, Université d'Aix-Marseille (FRA)
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Doelsch Emmanuel, CIRAD-PERSYST-UPR Recyclage et risque (FRA)
ORCID: 0000-0002-7478-4296
- Borschneck Daniel, Université d'Aix-Marseille (FRA)
- Olivi Luca, ELETTRA (ITA)
- Chaurand Perrine, Université d'Aix-Marseille (FRA)
- Dominici Christian, Université d'Aix-Marseille (FRA)
- Ziarelli Fabio, CNRS (FRA)
- Thill Antoine, CEA (FRA)
- Maillet Perrine, CEA (FRA)
- Bottero Jean Yves, Université d'Aix-Marseille (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/560806/)
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