Catalytic Transfer Hydrogenation of Furfural over Co₃O₄−Al₂O₃ Hydrotalcite‐derived Catalyst

Abstract

The hydrogenation of furfural by catalytic hydrogen transfer to produce furfuryl alcohol has been investigated over a series of mixed oxides derived from hydrotalcite catalysts. Three different catalysts containing Ni, Co and Zn phases on an Al‐rich amorphous support were synthesized and characterised. The catalytic performances were evaluated in a batch stirred reactor using 2‐propanol as a solvent and hydrogen donor, with Co3O4−Al2O3 showing the highest activity and selectivity to FA (74 % yield; 97 % selectivity). The effects of temperature (T=120–180 °C) and reaction time (t=30 min–24 h) were also studied, reaching a FA maximum yield of 92 % at 150 °C after 24 h. The Co3O4−Al2O3 catalyst showed a loss of activity after the first run, which can be easily restored by a simple calcination treatment. The results establish a catalytic route to produce valuable furfuryl alcohol over 3d‐transition metal‐based catalysts without any external hydrogen supply.

Encapsulation of CuO nanoparticles within silicalite-1 as a regenerative catalyst for transfer hydrogenation of furfural

“…The use of alcohols as hydrogen donors in catalytic transfer hydrogenation (CTH) has been extensively investigated in which 2-propanol has been identified as the most promising candidate ( Li et al., 2016b , 2020 ; Panagiotopoulou et al., 2014 ; He et al., 2018 ; Ramos et al., 2020 ; Fan et al., 2021 ). Using the silicalite-1 confined ultrasmall CuO (3CuO@sil-1) as the catalyst, we also investigated the effects of different alcohols including methanol, ethanol, and 2-propanol as the hydrogen donor on the CTH of FAL.…”

Catalytic Transfer Hydrogenation and Acid Reactions of Furfural and 5-(Hydroxymethyl)furfural over Hf-TUD-1 Type Catalysts

“…Hf-TUD-1(x) catalysts are the first Hf-mesoporous silicates reported for Fur conversion using secROH. The catalytic results for Hf-TUD-1(x) were compared with literature data for fully inorganic heterogeneous non-noble metal catalysts tested for Fur conversion to AMFs in alcohol medium ( Table 2 ) [ 34 , 36 , 37 , 39 , 42 , 43 , 61 , 62 , 65 , 67 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 ]. The present work does not concern noble metal catalysts for Fur conversion, which may be found in a vast literature such as the following references, just to cite a few [ 86 , 87 , 88 ].…”

An Account of the Catalytic Transfer Hydrogenation and Hydrogenolysis of Carbohydrate‐Derived Renewable Platform Chemicals over Non‐Precious Heterogeneous Metal Catalysts

“…Whereas, in the presence of an equimolar concentration of benzoic acid, hardly any FUR conversion was observed. Freire and coworkers synthesized NiO−Al 2 O 3 , Co 3 O 4 −Al 2 O 3 , and ZnAl 2 O 4 −Al 2 O 3 catalysts by calcining their respective hydrotalcite precursors at 500 °C for 5 h in air [31] . Among these catalysts, Co 3 O 4 −Al 2 O 3 exhibited the highest activity with 76 % FUR conversion and 74 % FOL yield at 150 °C using 2‐propanol as H‐donor solvent (Table 4).…”

“…catalysts for the transfer hydrogenation of FUR. [31] Acid content (L/B) [ Yang and coworkers synthesized AlÀ Zr@Fe O catalysts with a magnetic core and employed them for the transfer hydrogenation of FUR at 180°C using 2-propanol as H-donor solvent. [33] Al 7 Zr 3 @Fe 3 O 4 (1/1) catalyst afforded 99 % FUR conversion and 90 % FOL yield in 4 h. The recyclability test indicated that the catalyst could be easily recovered by applying a magnet, and the catalytic activity decreased slightly in the 5 th catalytic cycle with 96 % FUR conversion and 84 % FOL yield.…”