Brevet Année : 2021

Method for preparing a composite material with core-shell nanoparticles the shell of which is made from graphene

Résumé

The invention relates to a method for preparing a composite material comprising core-shell nanoparticles the core of which is made from a material which can absorb light and the shell of which is made from graphene, the method comprising the following steps: a) providing a substrate and an ink comprising nanoparticles which can absorb light, the nanoparticles being encapsulated in a polymer matrix; b) depositing the ink on a surface of the substrate, the surface or the ink comprising a carbon source selected from: • a polymer comprising an amide function and an aromatic function, • a hexose, • carbon nanoparticles, • self-assembled monolayers comprising aromatic rings, c) illuminating the surface of the ink-covered substrate with a pulsed light in order to bring the nanoparticles in the ink to a heating temperature greater than a dissociation temperature of the carbon in the carbon source, the carbon dissociated in this manner then being capable of diffusing or solubilising in the nanoparticles in the ink in order to form the composite material.

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Dates et versions

hal-04989359 , version 1 (13-03-2025)

Identifiants

  • HAL Id : hal-04989359 , version 1

Citer

Omar Kassem, Mathilde Rieu, Jean-Paul Viricelle, Mohamed Saadaoui. Method for preparing a composite material with core-shell nanoparticles the shell of which is made from graphene. France, N° de brevet: WO2021160874A1. 2021. ⟨hal-04989359⟩

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