Defence Ge Guo: "Catalytic Lignin Valorization into Bio-based Chemicals: Reactions & Mechanisms"
Promotors: 1st promotor: Prof Peter Deuss, 2nd promotor: Prof Erik Heeres
Abstract: Lignocellulosic biomass stands as a plentiful renewable resource for generating valuable biofuels and bio-based chemicals. Effectively utilization of this resource is crucial for achieving a carbon-neutral world. Within lignocellulosic biomass consisting of three primary constituents (cellulose, hemicellulose, and lignin), lignin’s intricate polymeric aromatic structure offers significant potential for efficient valorization into valuable aromatic monomers through selective depolymerization. This general introductory chapter begins with a brief overview of the structural composition of biomass and lignin, followed by a short summary of catalytic lignin valorization. Additionally, a general motivation and broader background are provided to clarify the objectives and direction of this thesis. It specifically emphasizes selective lignin modification and explores various catalytic systems aimed at advancing the efficiency and selectivity of lignin depolymerization. Furthermore, it highlights the importance of diverse lignin model compounds as valuable tools for developing different effective depolymerization strategies, which aid in elucidating catalytic reactivity and offer valuable insights into the reaction mechanisms involved. Finally, the chapter outlines the detailed research contents of each subsequent chapter.