Abstract: The present invention relates to a redox flow battery comprising: a first compartment comprising a negolyte in the form of an aqueous composition comprising at least one compound of formula (I) and/or a salt of the compound of formula (I), and/or a reduced form of the compound of formula (I), wherein X1, X2, X3, X4, X5, X6, X7 and X8 are independently chosen from the group consisting of a hydrogen atom, a halogen, an ether group of formula —O-A, an OH group, COOH group, -A-COOH group, —O-A-COOH group and a linear, cyclic, or branched, saturated or unsaturated hydrocarbon group comprising from 1 to 10 carbon atoms, A representing a linear, cyclic or branched, saturated or unsaturated hydrocarbon group comprising 1 to 10 carbon atoms, wherein at least one of X1, X2, X3, X4, X5, X6, X7 and X8 comprises an OH or COOH functional group; a second compartment comprising a posolyte in the form of an aqueous composition, comprising at least one electroactive molecule for example ferrocyanide ions [Fe(CN)6

Abstract: The present invention relates to the use of ionic liquids as an adjuvant in electrochemistry. Especially, the invention relates to the use of ionic liquids to solubilise in the aqueous phase, or increase the water solubility of, at least one organic molecule.

Abstract: The invention relates to a method for coating an organic or metallic material by covalent grafting of at least one organic compound A having at least one aromatic group substituted with a diazonium function, on a surface of said material, characterized in that the material is porous or fibrillar having a geometric surface area of at least 10 cm2 of material, and in that said method includes a step of continuous imposition of a non-zero pulsed current in an intensiostatic mode on the surface of the material in order to electrochemically reduce the diazonium ion or ions. The invention further relates to the resulting composite materials and to the use of such materials for manufacturing electrodes.

Abstract: Embodiments of the present disclosure provide for methods for manufacturing a metallized or metallizable felt by percolation of at least one felt element by electrodeposition.

Abstract: The invention relates to a method for coating an organic or metallic material by covalent grafting of at least one organic compound A having at least one aromatic group substituted with a diazonium function, on a surface of said material, characterized in that the material is porous or fibrillar having a geometric surface area of at least 10 cm2 of material, and in that said method includes a step of continuous imposition of a non-zero pulsed current in an intensiostatic mode on the surface of the material in order to electrochemically reduce the diazonium ion or ions. The invention further relates to the resulting composite materials and to the use of such materials for manufacturing electrodes.

Abstract: The present invention relates to a fuel cell device with electrolytes flowing by means of percolation through electrodes (1) and (2) having a porous, three-dimensional structure. The invention also relates to the various uses of said fuel cell device in the transport field and station ship field.

Abstract: Embodiments of the present disclosure provide for methods for manufacturing a metallized or metallizable felt by percolation of at least one felt element by electrodeposition.

Abstract: The invention concerns a method for voltammetric electrochemical analysis of a liquid solution, for detecting and/or assaying in said solution at least one chemical species. The invention is characterized in that the method includes the following steps: contacting a sample of said solution with a single analyzing support (10) having at least two working electrodes (12) each belonging to a separate electrochemical analysis cell, each analysis cell further including a counter-electrode (13) and a reference electrode; performing a single and different measurement of said sample in each of said analysis cells, by applying an independent and different potential to each of the working electrodes (12); producing at least one voltammogram of said sample, based on said measurements; deducing from said voltammogram data concerning the detection and/or assay of said at least one chemical species in said sample.