Abstract: The invention relates to a device for generating electrical power comprising a first electrode having a porosity that allows the flow of an electrolyte solution of concentration CA in a solute; a second electrode having a porosity that allows the flow of an electrolyte solution of concentration CB in a solute, CB being greater than CA; a membrane having selective permeability to anions or cations, said membrane being disposed between the two electrodes and comprising at least one channel arranged to allow the diffusion of electrolytes from the electrolyte solution of concentration CB to the electrolyte solution of concentration CA through said channel or channels; and a device making it possible to harvest the electrical power generated by the differential in potential between the two electrodes, wherein the two electrodes are formed of an activated carbon fabric, and to a method for producing electrical power using such a device.

Abstract: The present invention relates to an ion-selective composite membrane having a thickness of between 4 ?m and 100 ?m, comprising at least one inner layer disposed between two outer layers, wherein: —the outer layers are each formed of a first material comprising a network of nanofibres and/or crosslinked microfibres and pores with a diameter of between 10 nm and 10 ?m, —the inner layer is formed of a second material comprising nanoparticles functionalized at the surface by charged groups and/or groups which become charged in the presence of water and having pores with a diameter of between 1 and 100 nm.

Abstract: The present invention concerns a device for producing electrical energy, comprising: a) a first reservoir A for receiving an electrolyte solution having a concentration CA of a solute and comprising an electrode (30A) in contact with the electrolyte solution having concentration CA; b) a second reservoir B for receiving an electrolyte solution having a concentration CB of one and the same solute, CB being lower than CA, and comprising an electrode in contact with the electrolyte solution having concentration CB; c) a membrane separating the two reservoirs, said membrane comprising pores allowing the electrolytes to diffuse from reservoir A to reservoir B through said pore or pores; and d) a device capable of supplying the electrical energy generated by the potential difference existing between the two electrodes, characterized in that the membrane comprises at least one layer formed of a cellulosic material comprising a network of crosslinked cellulose nanofibres and/or microfibres.

Abstract: The invention relates to the extraction of organic compounds from mixtures of said compounds with water, using a nanoporous carbon membrane. The invention can be used in any field where it is desired to separate an organic compound of interest from water, such as the drying of alcohols or alkanes.

Abstract: The invention relates to the extraction of organic compounds from mixtures of said compounds with water, using a nanoporous carbon membrane. The invention can be used in any field where it is desired to separate an organic compound of interest from water, such as the drying of alcohols or alkanes.