Abstract: The present invention relates to a method for manufacturing ultra-porous photocatalytic materials, to the ultra-porous photocatalytic materials obtained by such a method, as well as to the uses thereof for producing hydrogen, treating wastewater and polluted water, treating polluted air, or furthermore to the use of same as catalytic membranes in fuel cells. Finally, a last aim of the invention relates to articles chosen among hydrogen production devices, self-cleaning glass panes and antipollution walls.

Abstract: A method for producing a capacitor including an array of nanocapacitors, in which the following operations are performed using a mold having a sealed surface, as a lower surface, and a top surface through which a network of pores extend: (a) filling the pores of the mold and covering a top surface of the mold with an electrically conductive material, to form a structure including an array of nanoscale objects connected by a single substrate; (b) removing the mold; (c) depositing, on an outline of the structure obtained at the end of (b), at least one bilayer including a first layer of an electrically insulating material and a second layer of an electrically conductive material; and then (d) locally removing the at least one bilayer deposited in (c) from the substrate to form the electrical contact.

Abstract: A method for producing a capacitor including an array of nanocapacitors, in which the following operations are performed using a mold having a sealed surface, as a lower surface, and a top surface through which a network of pores extend: (a) filling the pores of the mold and covering a top surface of the mold with an electrically conductive material, to form a structure including an array of nanoscale objects connected by a single substrate; (b) removing the mold; (c) depositing, on an outline of the structure obtained at the end of (b), at least one bilayer including a first layer of an electrically insulating material and a second layer of an electrically conductive material; and then (d) locally removing the at least one bilayer deposited in (c) from the substrate to form the electrical contact.

Abstract: The present invention relates to a method for manufacturing ultra-porous photocatalytic materials, to the ultra-porous photocatalytic materials obtained by such a method, as well as to the uses thereof for producing hydrogen, treating wastewater and polluted water, treating polluted air, or furthermore to the use of same as catalytic membranes in fuel cells. Finally, a last aim of the invention relates to articles chosen among hydrogen production devices, self-cleaning glass panes and antipollution walls.

Abstract: Process and apparatus for the growth of films of silicides of refractory metals and films obtained by this process.According to the invention, in order to grow a silicide film of a refractory metal on a silicon substrate, the latter is cleaned, then thermally degassed under an ultra-high vacuum by bringing the substrate to a given temperature between approximately 600.degree. C. and approximately 800.degree. C. A refractory metal is then evaporated on to the substrate at said temperature, after which the temperature is progressively lowered.Application to the production of electronic microcomponents.