The catalytic performance of Ni/Al 2 O 3 catalysts derived from layered double hydroxide precursors with nickel ions incorporated into the brucite-like layers was investigated for the hydrodeoxygenation (HDO) of anisole as a model compound of the lignin. Upon calcination and subsequent reduction, the well-crystallized phase and highly dispersed Ni nanoparticles (3~10 nm) on the support were obtained. The catalysts exhibited high activity toward the hydrogenolysis of CÀO bonds and the hydrogenation saturation of aromatic ring at low temperature (200-280 8C) and appropriate hydrogen pressure (2 MPa). The activity and selectivity of these two main reaction pathways of anisole conversion were independent of the Ni content. And the direct cleavage of C aromatic -O bond of anisole forming benzene as another parallel pathway prevails at increasing temperature. In addition, the catalysts are highly resistant to coking and easy to be reactivated by the utilization of the layered double hydroxide precursors.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.