{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["6"],"submitter":["Xu J"],"pubmed_abstract":["Lignin is the most promising candidate for producing aromatic compounds from biomass. However, the challenge lies in the cleavage of C-C bonds between lignin monomers under mild conditions, as these bonds have high dissociation energy. Electrochemical oxidation, which allows for mild cleavage of C-C bonds, is considered an attractive solution. To achieve low-energy consumption in the valorization of lignin, the use of highly efficient electrocatalysts is essential. In this study, a meticulously designed catalyst consisting of cobalt-doped nickel (oxy)hydroxide on molybdenum disulfide heterojunction was developed. The presence of molybdenum in a high valence state promoted the adsorption of <i>tert</i>-butyl hydroperoxide, leading to the formation of critical radical intermediates. In addition, the incorporation of cobalt doping regulated the electronic structure of nickel, resulting in a lower energy barrier. As a result, the heterojunction catalyst demonstrated a selectivity of 85.36% for cleaving the C<sub>α</sub>-C<sub>β</sub> bond in lignin model compound, achieving a substrate conversion of 93.69% under ambient conditions. In addition, the electrocatalyst depolymerized 49.82 wt% of soluble fractions from organosolv lignin (OL), resulting in a yield of up to 13 wt% of aromatic monomers. Significantly, the effectiveness of the prepared electrocatalyst was also demonstrated using industrial Kraft lignin (KL). Therefore, this research offers a practical approach for implementing electrocatalytic oxidation in lignin refining."],"journal":["Research (Washington, D.C.)"],"pagination":["0288"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10726294"],"repository":["biostudies-literature"],"pubmed_title":["Electrocatalytic Lignin Valorization into Aromatic Products via Oxidative Cleavage of C<sub><b>α</b></sub>-C<sub><b>β</b></sub> Bonds."],"pmcid":["PMC10726294"],"pubmed_authors":["Liu Y","Hu Y","Wang S","Lou Y","Meng J","Xu J","Bai W","Yu H","Dou S"],"additional_accession":[]},"is_claimable":false,"name":"Electrocatalytic Lignin Valorization into Aromatic Products via Oxidative Cleavage of C<sub><b>α</b></sub>-C<sub><b>β</b></sub> Bonds.","description":"Lignin is the most promising candidate for producing aromatic compounds from biomass. However, the challenge lies in the cleavage of C-C bonds between lignin monomers under mild conditions, as these bonds have high dissociation energy. Electrochemical oxidation, which allows for mild cleavage of C-C bonds, is considered an attractive solution. To achieve low-energy consumption in the valorization of lignin, the use of highly efficient electrocatalysts is essential. In this study, a meticulously designed catalyst consisting of cobalt-doped nickel (oxy)hydroxide on molybdenum disulfide heterojunction was developed. The presence of molybdenum in a high valence state promoted the adsorption of <i>tert</i>-butyl hydroperoxide, leading to the formation of critical radical intermediates. In addition, the incorporation of cobalt doping regulated the electronic structure of nickel, resulting in a lower energy barrier. As a result, the heterojunction catalyst demonstrated a selectivity of 85.36% for cleaving the C<sub>α</sub>-C<sub>β</sub> bond in lignin model compound, achieving a substrate conversion of 93.69% under ambient conditions. In addition, the electrocatalyst depolymerized 49.82 wt% of soluble fractions from organosolv lignin (OL), resulting in a yield of up to 13 wt% of aromatic monomers. Significantly, the effectiveness of the prepared electrocatalyst was also demonstrated using industrial Kraft lignin (KL). Therefore, this research offers a practical approach for implementing electrocatalytic oxidation in lignin refining.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023","modification":"2024-11-08T16:24:09.466Z","creation":"2024-11-08T16:24:09.466Z"},"accession":"S-EPMC10726294","cross_references":{"pubmed":["38111679"],"doi":["10.34133/research.0288"]}}