Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Raphael Ramos

Jean Dijon

Arnaud Morin

Paul-Henri Haumesser

Thierry Claret

Delphine Ferreira

Hanako Okuno

Method for metallising a porous structure made of carbon material, the method comprising the following steps: supplying a porous structure made of carbon material, immersing the porous structure in a solution comprising an ionic liquid, formed by a cation and an anion, and a metal precursor, placing the porous structure in a vacuum, immersed in the solution, in such a way as to cause the solution to penetrate into the porosity of the porous structure, adding a hydrogenated reducing agent, in such a way as to metallise the porous structure to within the porosity of the porous structure.

Method for metallising a porous structure made of carbon material

A multilayer structure, of use as composite diffusion layer in a proton-exchange membrane fuel cell, including at least one mat of carbon nanotubes having a unit diameter of less than or equal to 20 nm, defining at least one face of the structure, the mat of carbon nanotubes being superposed on a support based on carbon fibres. It also relates to a process for preparing such a multilayer structure and to the use thereof for an electrode of a PEMFC.

Multilayer structure incorporating a mat of carbon nanotubes as diffusion layer in a PEMFC

The invention concerns a substrate that is electrical conductive on at least one of the faces of same, provided with a stack of thin layers comprising at least one layer of catalyst material suitable for accelerating the growth of carbon nanotubes, characterized in that the stack comprises the sequence of thin layers deposited in the following order on top of said at least one electrically conductive face of the substrate: a) optionally, a metal made from metal M or a layer of a metal alloy made from metal M or a graphene layer; b) a titanium layer (Ti); c) an aluminum layer (Al); d) a layer of catalyst material(s) for the growth of carbon nanotubes. The invention also concerns a functional substrate (6) comprising a substrate coated with a carbon nanotube (NTC) mat, a production method and the uses of such a functional substrate.

Substrate that is electrically conductive on at least one of the faces of same provided with a stack of thin layers for growing carbon nanotubes (CNTs)

The invention relates to a method for manufacture of an electrical contact on a structure () made of an anisotropic material NA which exhibits an anisotropic electrical conductivity, where the structure () exhibits an axial electrical conductivity along a first axis XX' of the structure () and an orthogonal conductivity along a direction YY&#x2032; orthogonal to the first axis XX&#x2032; of the structure (), where the orthogonal conductivity is less than the axial conductivity, where the method comprises:

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Grenoble, France

Raphael Ramos