Metallic oxide–graphene composites as a catalyst for gas-phase oxidation of benzyl alcohol to benzaldehyde

Abstract

A new catalyst (FAG) composed of Fe, Al, and graphene (G) was prepared for catalyzing the reaction of benzyl alcohol (BA) to benzaldehyde (BD). The catalyst was characterized by XRD, XPS, SEM, and BET analyses. The catalytic performance of FAG for oxidation of BA to BD was studied by comparing with the catalysts ferrous oxide (Fe), ferrous oxide doped with aluminum (FA), and ferrous oxide doped with graphene (FG). The effects of amount of graphene additive, temperature, and ratio of Fe and Al were also studied. The results show that the catalyst FAG has a great specific surface area of 80.40 m2 g−1 and an excellent catalytic performance for the reaction of BA to BD: the conversion of BA and yield of BD significantly increased, and the selectivity of BD reached 87.38%.

Synergistic Innovations: Organometallic Frameworks on Graphene Oxide for Sustainable Eco-Energy Solutions

“…Gas-phase deposition methods involve introducing organometallic precursors in vapor phase for deposition onto graphene oxide surfaces [54][55][56][57][58]. Gas-phase deposition ensures uniform coating of graphene oxide with organometallic species, ensuring composite structural homogeneity [59,60].…”

Efficient oxidation of benzyl alcohol into benzaldehyde catalyzed by graphene oxide and reduced graphene oxide supported bimetallic Au–Sn catalysts

“…32 Sn species can induce the formation of hexagonal WO 3 with dominant exposed (001) and (200) planes, dramatically increase the specific surface area, change the structural properties and enhance the interactions between Sn–W oxides and RGO. 32 Li et al 33 found that Sn–W/RGO presented excellent catalytic properties for the reaction of BzOH to BzH. The BzOH conversion significantly increased, and the BzH selectivity reached 87.38%.…”

“…The BzOH conversion significantly increased, and the BzH selectivity reached 87.38%. 33 Ramirez-Barria et al 34 reported that Ru(CO)/NrGO (NrGO:N-doped reduced graphene oxide) displayed excellent BzOH conversions (50%) and BzH selectivity (>99%). The catalyst Ti(SO 4 ) 2 /GOF (Ti(SO 4 ) 2 : titanium sulfate; GOF: graphene oxide foam) showed unique catalytic activity (BzOH conversion 91.3%) and selectivity (99.0%) for the oxidation of BzOH to BzH using THF as solvent and H 2 O 2 as oxidant.…”