The depolymerization of polymer lignin model to low molecular weight products was studied in water, at 200 °C under 100 MPa of 10% O₂ using cobalt-iron mixed oxides as catalysts. These nanostructured oxides with different Co/Fe ratios were prepared via alginate gelation. X-ray diffraction, scanning electron microscope, and size exclusion chromatography were used to study the influence of the Fe/Co ratios on the structure and the proprieties of the oxides as well as the morphology, the structure, and the composition of the obtained degraded products. The results showed that the oxides used in this study were versatile catalysts with a high catalytic activity for lignin depolymerization. Furthermore, these oxides demonstrated high yield and high selectivity towards aromatic compounds.

使用钴-铁混合氧化物作为催化剂，在200°C，100 MPa的水中，10％O _2的水中，将聚合物木质素模型解聚为低分子量产物。通过藻酸盐胶凝制备具有不同Co / Fe比的这些纳米结构氧化物。用X射线衍射，扫描电子显微镜和尺寸排阻色谱法研究了Fe / Co比对氧化物的结构和性能以及所得降解产物的形态，结构和组成的影响。产品。结果表明，该研究中使用的氧化物是具有高催化活性的木质素解聚通用催化剂。此外，这些氧化物表现出高收率和对芳族化合物的高选择性。