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Electrocatalytic production of hydrogen boosted by organic pollutants and visible light
Soler Turu, Lluís; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Casado Giménez, Juan
Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. POLQUITEX - Materials Polimérics i Química Téxtil
A new method to produce high-purity hydrogen using photoelectrocatalytic reactions is studied. This integrated process uses solar energy and the Gibbs free energy of oxidation of organic wastes to help reducing the energy consumption of water electrolysis. The method diminishes the thermodynamic potential to 0.77 V and practical voltages to ca. 1.2 V, due to an electrocatalytic reaction in the presence of iron ions. The anolyte is illuminated, and separated from the catholyte by a proton exchange membrane. The process oxidizes water pollutants and avoids the anodic corrosion of a stainless steel anode, but not every sacrificial substance has a positive effect on it.
Àrees temàtiques de la UPC::Enginyeria química
Àrees temàtiques de la UPC::Energies::Recursos energètics renovables
Hydrogen--Research
Organic wastes
Water--Electrolysis
Hydrogen production
Alternative technologies
Organic wastes
Photo-Fenton
Water electrolysis
Hidrogen -- Producció
Residus orgànics -- Reciclatge
Aigua -- Electròlisi
info:eu-repo/semantics/publishedVersion
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