[EN] In the recent years, the uncontrolled increase in the emissions of carbon oxides to the atmosphere most of them due to the use of fossil fuels, represent one of the main problems that society faces. In order to reduce these emissions, the use of renewable sources, such as biomass and its derivatives has acquired special relevance. Within biomass, light alcohols such as methanol and ethanol are of special interest, being able to be used as both fuels (mainly bioethanol) and as raw materials to obtain chemical products of interest (acetaldehyde, acetic acid, ethyl acetate, etc., …). The catalysts commonly used in the production of acetaldehyde, mainly from ethylene (Wacker process), are based on noble metals such as Pd, Pt or Ag. However, the partial oxidation of (bio) ethanol, using mixed oxides of molybdenum and/or vanadium, is an interesting alternative, since said reaction has the advantage of being simple (one pot) and can be carried out at relatively low temperatures (less than 300⁰C), with the consequent reduction in CO2 emissions. The present work studies the synthesis of solid catalysts based on molybdenum and/or vanadium oxides, supported on TiO2 (anatase, P-25), as well as their physicochemical characterization by: Xray diffraction (XRD), Raman and X-ray scattering (EDX) spectroscopies, temperature programmed reduction (TPR) or N2 adsorption (BET surface area). Finally, the synthesized and characterized catalysts will be studied in the dehydrogenation of ethanol to acetaldehyde in the gas phase. TFGM