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

Co-CoO x /N-doped carbon combined with the recyclable base K 7 HNb 6 O 19 synergistically catalyze the selective and rapid cleavage of lignin β-O-4 models into aromatic products.