The liquid phase transformation of 5-hydroxymethylfurfuraldehyde (5-HMF) towards 2,5-furandicarboxylic acid (2,5-FDCA) using Pt and Pd catalysts supported on activated carbon and with the presence of CaCO 3 and NaOH, is reported. The catalysts were characterized using different techniques, such as: H 2 chemisorption at room temperature, X ray photoelectronic spectroscopy (XPS) and thermogravimetric analysis (TGA). The results indicate that the particle size followed the order: PtCl/C < PdCl/C < PdN/C, which is closely related to the catalytic behavior. It was found that the metal particles are present in the Pd 0 and Pt 0 form. PtCl/C was most active catalyst using CaCO 3 as weak base. Keywords: Aerobic oxidation, activated carbon, 2,5-furandicarboxylic acid. ResumenEn este trabajo se estudió la transformación en fase líquida de 5 hidroximetilfurfural (5-HMF) a ácido 2,5-furandicarboxilico con el uso de catalizadores de Pt y Pd soportados en carbón activado con la presencia de NaOH ó CaCO 3 . Los catalizadores fueron caracterizados por quimisorción de H 2 a temperatura ambiente, espectroscopia de rayos X (XPS) y análisis termogravimétrico (TGA). Los resultados indican que el tamaño de partícula de los catalizadores sigue el orden PtCl/C < PdCl/C < PdN/C el cual esta estrechamente relacionado con la actividad catalítica. Se encontró que las partículas metálicas están presentes como especies de Pd 0 and Pt 0 . Siendo el catalizador de Pt-Cl/C con el uso de CaCO 3 como aditivo.Palabras clave: Ácido 2,5-furandicarboxilico, carbón activado, oxidación aeróbica.
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