Highly efficient oxidative cleavage of lignin β-O-4 linkages via synergistic Co-CoOx/N-doped carbon and recyclable hexaniobate catalysis

The oxidative depolymerization of β-O-4 linkages into value-added aromatic chemicals is of great importance for lignin valorization. However, achieving highly selective and rapid cleavage of β-O-4 linkages under mild conditions...