Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/ijms23084378
Keywords
lignin; oxidation; green chemistry; biomass; model compounds
Funding
- MIUR
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This article provides a detailed overview of oxidative depolymerization of lignin and biomass valorization. It compares the advantages and disadvantages of different methods, highlights the green aspects, and gives an overview of selenium catalyzed lignin valorization.
Oxidative depolymerization of lignin is a hot topic in the field of biomass valorization. The most recent and green procedures have been herein detailed. Photochemical and electrochemical approaches are reviewed highlighting the pros and cons of each method. Mechanochemistry activated strategies are able to combine oxidation and depolymerization in the deconstruction of lignin. Homogenous and heterogeneous catalytic systems are exemplified stressing the green aspects associated with both the procedures. Solvent-free approaches as well as those carried out in alternative media are listed. Finally, the few examples of selenium catalyzed lignin valorization reported so far are cited.
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