Electrochemical oxidation of lignin for the simultaneous production of bioadhesive precursors and value-added chemicals
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2022-12-25 |
| Journal | Biomass and Bioenergy |
| Authors | JĂșlio J. Conde, Sandra GonzĂĄlez-RodrĂguez, Xinyi Chen, Thelmo A. LĂșâChau, Gemma Eibes |
| Institutions | Laboratoire dâEtude et de Recherche sur le MatĂ©riau Bois, Universidade de Santiago de Compostela |
| Citations | 18 |
Abstract
Section titled âAbstractâElectrochemical oxidation of lignin has been widely regarded as a clean and reliable alternative to obtain value-added products from lignin, such as vanillin or guaiacol. This work aims to go one step beyond the production of low molecular weight molecules and explore the possibility of using lignin residues from electrochemical treatments in the context of biorefinery. To this end, a two-way valorization of lignin by electrochemical oxidation is proposed, in order to obtain a liquid phase enriched in low molecular weight organic oligomers and a solid phase of modified lignin to be used as bioadhesive precursor. Hydroxylation of lignin by electrochemical oxidation using boron-doped diamond (BDD) anodes was observed according to the FTIR and MALDI-TOF results, concluding that an applied current density of 10 mA cmâ2 leads to promising modifications for the formulation of bioadhesives. Furthermore, NIPU bioadhesives with electrochemically modified lignin were successfully prepared and tested for use in particleboard panels, showing satisfactory mechanical properties, and thus paving the way for more environmentally friendly lignin modification procedures for the wood industry
Tech Support
Section titled âTech SupportâOriginal Source
Section titled âOriginal SourceâReferences
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