文摘
Generation of hydrogen from renewable sources and its safe utilization for efficient one-pot upgrading of renewable biofuels are a challenge. Bimetallic PdAg catalyst supported on Fe3O4/nitrogen-doped reduced graphene oxide (N-rGO) were synthesized for hydrogen generation from formic acid with high TOF (497 h鈥? at 50 掳C), and the hydrogen was subsequently utilized in situ for selective defunctionalization of lignin-derived chemicals with preserved aromatic nature at ambient pressure. Hydrodeoxygenation of aromatic aldehydes and ketones gave excellent yields (99% at 130 掳C) with no use of additives. Furthermore, hydrogenolysis of 尾-O-4 and 伪-O-4 C鈥揙 model compounds produced only two products with high selectivity at 120 掳C, which is an efficient and versatile one-pot platform for valorization of lignin biomass.