作者简介

李明富

博士后，广东省科学院生物与医学工程研究所，助理研究员，广东省科学院“百人计划”高层次人才，从事生物基平台化学品的合成与转化研究，主持及参与国家和省市级科研项目6项。近3年以第一作者/通讯作者在Applied Catalysis B: Environment and Energy、Chemical Engineering Journal、ACS Sustainable Chemistry & Engineering、Renewable Energy、Materials Today Chemistry、International Journal of Biological Macromolecules、Industrial Crops & Products等期刊发表SCI论文16篇，申请发明专利7件，国际专利1件，授权发明专利2件。目前，担任Resources, Conservation & Recycling、ACS Sustainable Chemistry & Engineering、Renewable Energy和International Journal of Biological Macromolecules等多家期刊审稿人。

02、论文摘要

The green oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is a crucial step in the development of sustainable and degradable plastics. Here, a series of MnCO3-MnxCo3-xO4-Ov composite oxides are synthesized by a simple solid-state grinding and carbonization method, exhibiting a 100 % HMF conversion rate and 98.7 % FDCA yield directly using air as the oxygen source. Physicochemical characterizations indicate that the introduced carbon promotes the diffusion of Mn species and reduction of Co3+/Co4+, resulting in more unsaturated coordination of Co–O and the enhanced formation of oxygen vacancies (Ov). The  kinetic analysis suggests that the oxidation of HMF to FDCA can be effectively promoted by regulating the Ov content in the catalyst after changing the Mn/Co ratio. Moreover, density functional theory (DFT) calculations demonstrate the crucial role of Ov in reducing the adsorption energy of HMF on the catalyst surface and activation of O2 molecules to replenish lattice oxygens during the completion of the catalytic cycle. This work provides a promising strategy to engineer transition metals as alternatives to noble metal-based catalysts towards catalytic oxidation for the production of biofuels and bioplastics.

03、论文图表