Crystal-phase control of molybdenum carbide nanobelts for dehydrogenation of benzyl alcohol†
Abstract
Belt-shaped molybdenum carbides in α- and β-phases were synthesized by reducing and carburizing a nano-sized α-MoO3 precursor with hydrocarbon–hydrogen mixtures at appropriate temperatures; the β-Mo2C nanobelts with a higher fraction of coordinatively unsaturated Mo sites were more active than the α-MoC1−x nanobelts in dehydrogenation of benzyl alcohol to benzaldehyde.