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Ingeniería y competitividad

versão impressa ISSN 0123-3033

Resumo

SANABRIA, Lyda et al. Pt and Pd on activated carbon for oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid. Ing. compet. [online]. 2017, vol.19, n.2, pp.37-43. ISSN 0123-3033.  http://dx.doi.org/10.25100/iyc.v19i2.5291.

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 CaCO3 and NaOH, is reported. The catalysts were characterized using different techniques, such as: H2 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 Pd0 and Pt0 form. PtCl/C was most active catalyst using CaCO3 as weak base.

Palavras-chave : Aerobic oxidation; activated carbon; 2,5-furandicarboxylic acid.

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