Hydrogenolysis of Lignin and C–O Linkages Containing Lignin-Related Compounds over an Amorphous CoRuP/SiO2 Catalyst

Efficient depolymerization of C–O linkages is essential for converting lignin into fuels and higher value-added chemicals. In this work, CoRuP/SiO2, an amorphous Ru-Co phosphide composite, was fabricated the efficient hydrogenolysis ether linkages. The 4–O–5 α–O–4 containing lignin-related compounds, such as diphenyl ether, benzyl phenyl 3-methyl dibenzyl are selected representatives in lignin. Under mild conditions, Ru-containing metallic phosphides have high-performance catalytic Compared with other catalysts, CoRuP/SiO2 shows outstanding selectivity benzene excellent efficiency depolymerizing ethers, yielding only a small amount by-products. Furthermore, total acidity linear relationship reactivity cleaving aromatic bonds. mechanisms bonds over proposed. Moreover, two-dimensional heteronuclear single quantum coherence nuclear magnetic resonance spectroscopic analysis demonstrates that could effectively depolymerize These dominant products from potential production high drugs or pharmaceutical intermediates. can be highly alternative to existing method utilization.