AI summary · arXiv: 2108.09771v1 · cond-mat.soft
On the product selectivity in the electrochemical reductive cleavage of lignin model compounds
The essentials
- Renewable chemicals for fuel and energy industries are in high demand
- Lignin valorization has emerged as a key area of research
- Lignin requires a fine-tuning of the depolymerization process to convert it into valuable chemicals
- 2-phenoxyacetophenone was used as a model compound for lignin's eta-O-4 linkage
- The study focused on electro-catalytically hydrogenating (ECH) 2-phenoxyacetophenone in distinct three-electrode setups: an open cell and a membrane cell
- Copper was chosen as an electrocatalyst due to its economic feasibility and low activity towards hydrogen evolution reaction (HER)
- By varying the cell type, the researchers demonstrated a simple ECH route for generating different monomers and oligomers from lignin
- Gas chromatography analysis revealed that the membrane cell produced products with higher carbonyl group content compared to those produced by the open cell, which mostly contained hydroxyl-end chemicals
- The study aimed at producing high-value-added products from lignin using cheap transition metal electrodes and sustainable solvents
- The choice of cell type influences electrochemical reductive depolymerization of lignin
- Other studies have characterized products generated from various types of biomass feedstocks using different catalytic systems
- These findings highlight the potential of lignin valorization as a sustainable route for producing renewable chemicals and fuels.
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