Enhanced lignin hydrogenolysis by in situ hydrogen supply through methanol–water aqueous phase reforming over a CoTi@biochar catalyst

Abstract

A novel catalytic strategy for enhanced lignin hydrogenolysis by in situ hydrogen supply was developed over a CoTi@biochar catalyst. In this catalytic system, methanol is used as the solvent for lignin hydrogenolysis. The suitable addition of water promotes the methanol–water aqueous phase reforming (APR) reaction for in situ hydrogen supply, which enhances the lignin hydrogenolysis performance. The synergistic interaction between Co and Ti species not only promotes the APR reaction for hydrogen production, but also improves the hydrogenolysis of lignin. The proposed strategy offers a promising approach for advancing lignin valorization and sustainable biorefinery technologies.