Highly Efficient Hydrogenation of Furfural to Furfuryl Alcohol Catalyzed by Pt Supported on Bi-Metallic MIL-100 (Fe, Mn/Co) MOFs Derivates Prepared by Hydrothermal Polyol Reduction Method

The Pt/(Fe, Mn/Co)-BTC catalysts were fabricated by a facile ultrasonic impregnation assisted hydrothermal polyol reduction method using first MIL-100(Fe, Mn/Co) MOFs as supports and tested for selective hydrogenation of furfural (FAL) to furfuryl alcohol (FOL). Various characterizations including XRD, TG, FT-IR, N2 physical adsorption, ICP-OES, SEM, TEM and XPS were applied for exploring structure changes and surface properties of the catalysts. Over 98% conversion of FAL and 99% selectivity to FOL were achieved over Pt/(Fe, Mn)-BTC and Pt/(Fe, Co)-BTC, moreover, Pt/(Fe, Co)-BTC showed higher turnover frequency (TOF) of 1,044 h−1 and better cycle stability, which are better than other catalysts prepared by using H2, NaBH4, and formaldehyde as reductants. Overall, the formation of highly dispersed small-sized Pt NPs (about 1.7 nm) with much higher content of surface Pt0 on the catalysts is the key of excellent hydrogenation activity due to the strong interaction between Pt NPs and the bimetallic supports.