Abstract: The present disclosure relates to a method to produce an oxygen evolution reaction electrode catalyst assembly comprising a dendritic nickel foam. The method is remarkable in that it comprises the steps of (a) providing a dendritic nickel foam material; (b) etching the dendritic nickel foam material by placing it in a etch solution being an acidic aqueous solution or an aqueous solution of metal chloride and recovering an etched dendritic nickel foam with nickel dendrites showing a chimney-like structure.

Abstract: Disclosed are surface modified electrodes, their process of preparation and their use in the electrolytic reduction of carbon dioxide and/or carbon monoxide, as well as an electrochemical cell including the electrode.

Abstract: The invention relates to a process for electrolysing carbon oxides selected from carbon monoxide and/or carbon dioxide into ethylene by means of an electrolyser comprising a cathode catalyst being a dendritic copper oxide catalyst or a dendritic copper catalyst.

Abstract: The present invention relates to an electrode comprising an electrically conductive substrate of which at least one portion of the surface is covered with a metal deposit of copper, the surface of said deposit being in an oxidised, sulphurised, selenised and/or tellurised form and the deposit having a specific surface area of more than 1 m2/g; a method for preparing such an electrode; and a method for oxygenising water with dioxygen involving such an electrode.

Abstract: The present invention relates to an electrolysis device comprising an anode and a cathode, wherein the anode and the cathode each are an electrode comprising an electrically conductive support of which at least a part of the surface is covered by a metal deposit of copper, wherein the surface of the metal deposit is in an oxidized, sulfurated, selenated and/or tellurized form and the metal deposit has a specific surface area greater than or equal to 1 m2/g. The present invention relates also to a method for reducing CO2 into hydrocarbons using an electrolysis device according to the invention. The method according to the invention comprises: a) providing an electrolysis device according to the invention; b) exposing the cathode of said electrolysis device to a CO2-containing aqueous catholyte solution; c) exposing the anode of said electrolysis device to an aqueous anolyte solution; and d) applying an electrical current between the anode and the cathode in order to reduce the carbon dioxide into hydrocarbons.

Abstract: The present invention relates to a method for CO2 electroreduction to syngas, a mixture of carbon monoxide (CO) and hydrogen (H2), using a cathode comprising an electrically conductive support of which at least a part of the surface is covered by a metal deposit of zinc and of a second metal selected from copper, gold and mixtures thereof, and being preferably copper, said metal deposit comprising at least 1 wt % of one or several phases of an alloy of zinc and of the second metal. The present invention relates also to an electrode useful for performing this method, a process for preparing such an electrode and an electrolysis device comprising such an electrode.

Abstract: The present invention relates to an electrode comprising a metal deposit of zinc and silver, a process for preparing such an electrode, an electrolysis device comprising such an electrode and a method for CO2 electroreduction to CO using such an electrode as a cathode.

Abstract: The present invention relates to an electrode comprising an electrically conductive substrate of which at least one portion of the surface is covered with a metal deposit of copper, the surface of said deposit being in an oxidised, sulphurised, selenised and/or tellurised form and the deposit having a specific surface area of more than 1 m2/g; a method for preparing such an electrode; and a method for oxygenising water with dioxygen involving such an electrode.

Abstract: The present invention concerns a method for the preparation of a catalyst onto a solid support of a (semi-)conductive material consisting in depositing said catalyst onto said support from a near-neutral aqueous solution containing at least one nickel or cobalt organic complex and at least one basic oxoanion, by a method selected in the group consisting of reductive electrodeposition, photochemical electrodeposition and photoelectrochemical deposition. The present invention also concerns said catalyst and uses thereof.

Abstract: The subject matter of the invention is an electroconducting nanowire, comprising an amyloid fiber which results from the self-assembling of peptides comprising a prion domain or a derivative of this domain and which is functionalized by electron transporting peptides, each comprising amino acids bound to one or more atoms of iron. Its subject matter is also a method of manufacturing this nanowire as well as the uses of said nanowire. Uses: manufacture of sensors for the detection of chemical or biological species, of nano-batteries, of radio-identification systems, of molecular memory systems, etc.

Abstract: The present invention concerns a method for the preparation of a catalyst onto a solid support of a (semi-)conductive material consisting in depositing said catalyst onto said support from a near-neutral aqueous solution containing at least one nickel or cobalt organic complex and at least one basic oxoanion, by a method selected in the group consisting of reductive electrodeposition, photochemical electrodeposition and photoelectrochemical deposition. The present invention also concerns said catalyst and uses thereof.

Abstract: Novel materials comprising a solid support, linker arms and metal-organic complexes, and their use for the electrocatalytic production and oxidation of H2. Such materials can be used for the production of electrodes in the field of electronics, and notably electrodes for fuel cells, electrolysers and photoelectrocatalytical (PEC) devices.

Abstract: The subject matter of the invention is an electroconducting nanowire, comprising an amyloid fibre which results from the self-assembling of peptides comprising a prion domain or a derivative of this domain and which is functionalized by electron transporting peptides, each comprising amino acids bound to one or more atoms of iron. Its subject matter is also a method of manufacturing this nanowire as well as the uses of said nanowire. Uses: manufacture of sensors for the detection of chemical or biological species, of nano-batteries, of radio-identification systems, of molecular memory systems, etc.

Abstract: The present invention is directed towards proposing ligands of formula: and is also directed towards a substrate at the surface of which is immobilized at least one unit of formula:

Abstract: Novel materials comprising a solid support, linker arms and metal-organic complexes, and their use for the electrocatalytic production and oxidation of H2. Such materials can be used for the production of electrodes in the field of electronics, and notably electrodes for fuel cells, electrolysers and photoelectrocatalytical (PEC) devices.

Abstract: The invention concerns a method for analyzing biological targets of DNA or RNA type, which comprises the following steps: a) contacting the targets to be analyzed (ICAM-20) with oligonucleotide probes (ISIS) labeled with a cofactor A of an enzyme E; b) adding, to the reaction medium, enzyme E corresponding to cofactor A and a substrate S of enzyme E, substrate S being converted by enzyme E into a compound C; c) measuring a signal representative of the activity of enzyme E on substrate S, for example the fluorescence intensity (I) of substrate S; and d) comparing this signal with the signal obtained when the oligonucleotide probes labeled with cofactor A (ISIS) are contacted with enzyme E and substrate S, under the same conditions, but in the absence of the targets, the difference between the two signals indicating the presence of complementary targets (ICAM-20) of the oligonucleotide probes.

Abstract: This invention relates to an analytical support containing a plurality of oligonucleotides fixed on this support, where each of the nucleotides is marked by a fluorescent compound that presents a variation of fluorescence on the hybridization of each marked oligonucleotide with at complementary oligonucleotide. This support makes it possible to carry out an analysis of biological targets by measuring the variation of fluorescence in order to determine the hybridization of the targets with the oligonucleotides of the support.

Abstract: The invention concerns a method for analyzing biological targets of DNA or RNA type, which comprises the following steps: a) contacting the targets to be analyzed (ICAM-20) with oligonucleotide probes (ISIS) labeled with a cofactor A of an enzyme E; b) adding, to the reaction medium, enzyme E corresponding to cofactor A and a substrate S of enzyme E, substrate S being converted by enzyme E into a compound C; c) measuring a signal representative of the activity of enzyme E on substrate S, for example the fluorescence intensity (I) of substrate S; and d) comparing this signal with the signal obtained when the oligonucleotide probes labeled with cofactor A (ISIS) are contacted with enzyme E and substrate S, under the same conditions, but in the absence of the targets, the difference between the two signals indicating the presence of complementary targets (ICAM-20) of the oligonucleotide probes.

Abstract: This invention relates to an analytical support comprising a plurality of oligonucleotides fixed on this support, characterized in that each of said oligonucleotides is marked by a fluorescent compound that presents a variation of fluorescence on the hybridization of each marked oligonucleotide with a complementary oligonucleotide.