关键词: 木质素, 多相催化, 氢解, 反应机理, 单酚化合物, 功能材料, 生物质基燃料

Abstract:

Lignin is the most abundant renewable aromatic resource in nature. Catalytic depolymerization of lignin into monophenols suitable for downstream processing has been regarded as a key point for its high-value utilization, playing a significant role in advancing the "dual carbon" target. However, due to the structural complexity, heterogeneity, and diversity of lignin, achieving efficient and highly selective production of separable aromatic monomers for the preparation of valuable products remains a significant challenge. This paper introduces the structural characteristics and differences of lignin from various plant sources, while also presenting the latest findings from our group on lignin reductive catalytic depolymerization and the high-value utilization of monophenols. The authors propose that lignin-derived monophenols hold promise for the preparation of bioactive molecules, functional materials, and high-energy fuels. This work provides a solid foundation and reference for the development of high-value lignin-based products.

Key words: lignin, heterogeneous catalysis, hydrogenolysis, reaction mechanism, monophenols, functional materials, bio-fuels