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Exploitation of the nanostructure of electocrystallized ramified branches for an alternative synthesis of colloidal metallic nanoparticles

Kharbachi, Chams and Tzedakis, Théo and Chauvet, Fabien Exploitation of the nanostructure of electocrystallized ramified branches for an alternative synthesis of colloidal metallic nanoparticles. (2018) In: Elecnano 8, 29 May 2018 - 31 May 2018 (Nancy, France). (Unpublished)

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Abstract

We explore an alternative synthesis of colloidal metal nanoparticles (cMnP) by electrocrystallization. The principle is to make grow long metallic ramified branches by galvanostatic electrolysis of a stagnant metal salt aqueous solution inside a Hele-Shaw (thin gap) cell. In the absence of supporting electrolyte, the constraint of electroneutrality forces the deposit to grow as ramified branches. These branches grow by successive nucleation / growth events that leads to a fine branches structure made up of metal crystals whose size can be lower than 100 nm. The objectives of this work are to study the formation mechanism of such metal nanocrystals assemblies and elaborate a device able to dissociate and release them to propose an alternative synthesis of cMnP.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-01917247
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Fabien CHAUVET
Deposited On:09 Nov 2018 10:38

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