Ruthenium on phosphorous-modified alumina as an effective and stable catalyst for catalytic transfer hydrogenation of furfural. Issue 19 (20th March 2020)

• Record Type: Journal Article
• Authors: Fovanna, Thibault; Campisi, Sebastiano; Villa, Alberto; Kambolis, Anastasios; Peng, Gael; Rentsch, Daniel; Kröcher, Oliver; Nachtegaal, Maarten; Ferri, Davide
• Is Part Of: RSC advances. Volume 10:Issue 19(2020)
• Page Start: 11507
• Page End: 11516
• Publication Date: 2020-03-20
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0ra00415d
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Phosphorous induces structural changes in Ru/Al2 O3 that make it more active and more stable for liquid phase hydrogenation of furfural. Abstract : Supported ruthenium was used in the liquid phase catalytic transfer hydrogenation of furfural. To improve the stability of Ru against leaching, phosphorous was introduced on a Ru/Al2 O3 based catalyst upon impregnation with ammonium hypophosphite followed by either reduction or calcination to study the effect of phosphorous on the physico-chemical properties of the active phase. Characterization using X-ray diffraction, solid state 31 P nuclear magnetic resonance spectroscopy, X-ray absorption spectroscopy, temperature programmed reduction with H2, infrared spectroscopy of pyridine adsorption from the liquid phase and transmission electron microscopy indicated that phosphorous induces a high dispersion of Ru, promotes Ru reducibility and is responsible for the formation of acid species of Brønsted character. As a result, the phosphorous-based catalyst obtained after reduction was more active for catalytic transfer hydrogenation of furfural and more stable against Ru leaching under these conditions than a benchmark Ru catalyst supported on activated carbon.