Atomically-ordered active sites in NiMo intermetallic compound toward low-pressure hydrodeoxygenation of furfural

Furfural Adsorption and Hydrogenation at the Oxide‐Metal Interface: Evidence of the Support Influence on the Selectivity of Iridium‐Based Catalysts

“…From this point of view, catalysts and experimental conditions are the main factors which impose a crucial influence on the selectivity in the reductive conversion of furfural [4,5] . Supported noble metal (Pt, Pd, Ru and Ir) as well as transition metal (Cu, Fe, Ni) nanoparticles have been proposed as heterogeneous catalysts for the direct hydrogenation (under H 2 pressure) and the catalytic transfer hydrogenation (using an organic molecule as the hydrogen source) of furfural [6–26] . Depending on the metal nature and structure (distribution of exposed active sites, such as edges, corners, terraces), furfural can adopt different adsorption modes on the active surface, [27] which are schematically depicted in Scheme 1 b.…”

Facile and Efficient Synthesis of Primary Amines via Reductive Amination over a Ni/Al2O3 Catalyst

“…A broad band was also presented at 861.2 eV (Ni 2p 3/2 ) and 871.5 eV (Ni 2p 1/2 ), which could be ascribed to the satellite peaks of NiO. In addition, the proportion of NiO in total Ni species also exhibited an increasing tendency from 11.9% for 5Ni/Al 2 O 3 to 28.2% for 20Ni/Al 2 O 3 with the continuous addition of Ni salt into the Ni/Al 2 O 3 catalyst (Table S2), which could provide more reducible NiO to active metallic Ni for the catalytic reaction. , The absence of NiO species may be the reason that 1NiAl 2 O 3 almost exhibited no activity. This could contribute to the improved catalytic performance of reductive amination with an increased metallic Ni amount (Table ), and the maximum yield of 2a was achieved for the 10Ni/Al 2 O 3 catalyst, while the excess loading of Ni (20 wt %) would cause the aggregation of Ni species on the catalyst surface, thus leading to inferior catalytic performance (Table ), which further revealed the importance of a moderate amount of metallic Ni species and their uniform dispersion. , Additional spectra for Al and O elements could be found in the Supporting Information (Figure S4).…”

Sustainable biomass hydrodeoxygenation in biphasic systems

“…Similarly, Ni-Mo intermetallic compound (IMC) as a bimetallic catalyst catalyzed the selective HDO of furfural to produce 2-MF in 99% yield at the lower hydrogen pressure. 148 Since Ni and Mo are non-precious metals, the production cost of the catalysts is significantly reduced. Also, as shown in Fig.…”