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oai:riuma.uma.es:10630/402972026-02-03T11:34:15Zcom_10630_2254col_10630_37953

Pd Nanoparticles Supported on Activated Carbon and Their Application in the Oxidative Condensation Reaction of Furfural: Effect of Base and Oxidizing Agent on Catalytic Behavior and Deactivation Maderuelo-Solera, Rocío Monti, Eleonora Moreno-Tost, Ramón García-Sancho, Cristina Maireles-Torres, Pedro Jesús Cecilia-Buenestado, Juan Antonio Dimitratos, Nikolaos Carbón activado Catalysts with different Pd loading (0.5–2 wt.%) supported onan activated carbon were synthesized and tested in the oxida-tive condensation reaction of furfural using absolute ethanol,sodium carbonate as base, and hydrogen peroxide as oxidiz-ing agent. The characterization of the catalysts reveals a highdispersion of the Pd-species in the form of Pd 0 . The catalyticresults reported that furan-2-acrolein is the main product witha maximum yield of 52% after 6 h of reaction at 130 °C for thecatalyst with the highest Pd content. To obtain this product, it isnecessary to have the presence of an oxidant as hydrogen per-oxide, to promote the oxidation of ethanol to acetaldehyde, andthen a base, which promotes its condensation reaction with thefurfural molecule. The progressive decay of the furan-2-acroleinyield and the conversion values after several cycles suggeststhe formation of carbonaceous deposits on the surface of thecatalysts, which block the metallic sites involved in the reac-tions, as was observed by X-ray photoelectron spectroscopy andCO-chemisorption studies. 2025-10-17T10:31:43Z 2025-10-17T10:31:43Z 2025 journal article R. M. Solera, E. Monti, R. Moreno-Tost, et al. “ Pd Nanoparticles Supported on Activated Carbon and Their Application in the Oxidative Condensation Reaction of Furfural: Effect of Base and Oxidizing Agent on Catalytic Behavior and Deactivation.” ChemCatChem 17, no. 17 (2025): 17, e00581. https://doi.org/10.1002/cctc.202500581 https://hdl.handle.net/10630/40297 10.1002/cctc.202500581 eng open access Wiley-VCH GmbH