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Réactivité de nouveaux matériaux hybrides organo-minéraux à base de silice en solution aqueuse : applications électrochimiques

Abstract : This thesis deals with the study of the reactivity in aqueous medium of organic-inorganic silica-based materials which were synthesised by copolymerisation according to the sol-gel process. Given their attractive properties (rigidity, great porosity, long range order) these compounds are well-suited as electrode modifiers for applications in electroanalysis. The first part concerns the influence of structure and composition of the SH- and NH[subscript 2-] functionalized silicas towards Cu[ exponent 2+] and Hg[exponent 2+] ions (uptake and kinetics of complexation). In a second part the obtained results have allowed the preparation of a more complex carnosine-based silica material and its application to the electrochemical detection of Cu[exponent 2+]. Finally a new and versatile method was proposed to generate by electrodeposition porous and mechanically stable functionalized sol-gel films on gold electrode.
Document type :
Theses
File URL :
http://docnum.univ-lorraine.fr/prive/SCD_T_2003_0152_SAYEN.pdf
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https://hal.univ-lorraine.fr/tel-01746833
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Submitted on : Thursday, March 29, 2018 - 10:45:46 AM
Last modification on : Friday, February 26, 2021 - 2:42:02 PM

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  • HAL Id : tel-01746833, version 1

Citation

Stéphanie Sayen. Réactivité de nouveaux matériaux hybrides organo-minéraux à base de silice en solution aqueuse : applications électrochimiques. Autre. Université Henri Poincaré - Nancy 1, 2003. Français. ⟨NNT : 2003NAN10152⟩. ⟨tel-01746833⟩

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