Aqueous Phase Selective Hydrogenation of Lignin-Derived Phenols to Cyclohexanols Over Pd/γ-Al2O3

Integrated design of an amination process of lignin oxygenated model compounds to synthesize cyclohexylamine: catalyst nanostructure engineering and catalytic conditional strategy

“…When the metal loading of Pd/γ-Al 2 O 3 was 2.0 wt%, 4-ethylcyclohexanol was obtained in high yield possibly attributable to the surface Pd 0 species (93.6%). 68 Similarly, Wang et al 69 pointed out that the presence of metallic Ru nanoparticles on the surface of TiO 2 -eSiO 2 after H 2 reduction helped to improve the selectivity of CHOL, and the yield of CHOL increased from 83.8% to 85.9%. In addition, the crystal face of metals also affects product selectivity.…”

Low temperature catalytic hydrodeoxygenation of lignin-derived phenols to cyclohexanols over the Ru/SBA-15 catalyst

“…24,37,41 Compared with the results reported for phenol hydrogenation in aqueous phase, Ru/SBA-15 gave a lower apparent activation energy in both of the two progress. 42,43 The zero-order character of phenol hydrogenation suggested the weak adsorption and fast desorption of the molecules reacted on Ru/SBA-15 catalyst, which explained high activity of hydrogenation and stability of the recycling reactions without carbon deposition on the catalyst.…”