Device for producing energy by salinity gradient through titanium oxide nanofluid membranes

A method for producing electrical energy using a device, comprising the following steps:

• placing an electrolyte solution having a concentration CA of a solute in a first vessel, the first vessel comprising a first electrode arranged so that the first electrode is contacted with the electrolyte solution of concentration CA,
• placing an electrolyte solution having a concentration CB of the same solute in a second vessel, the second vessel comprising a second electrode arranged so that the second electrode comes in contact with the electrolyte solution of concentration CB, the concentration CB being lower than the concentration CA,
• wherein the first vessel and the second vessel are separated by a membrane, the membrane comprising at least one nanochannel arranged to allow diffusion of electrolytes from the first vessel to the second vessel through the at least one nanochannel, at least part of the inner surface of the at least one nanochannel being formed of at least one titanium oxide;
• and
• capturing electrical energy generated by a potential difference existing between the first and second electrodes using a device comprising the first vessel and the second vessel.