Efficient base-free oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over copper-doped manganese oxide nanorods with tert-butanol as solvent  

作　　者：Feng Cheng Dongwen Guo Jinhua Lai Meihui Long Wenguang Zhao Xianxiang Liu Dulin Yin 

机构地区：[1]National&Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province,College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China

出　　处：《Frontiers of Chemical Science and Engineering》2021年第4期960-968,共9页化学科学与工程前沿（英文版）

基　　金：The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China(Grant No.21606082);Hunan Provincial Natural Science Foundation of China(No.2018JJ3334);China Postdoctoral Science Foundation(No.2019M662787);Hunan Provincial Innovation Foundation for Postgraduate(No.CX20200522).

摘　　要：2,5-Furandicarboxylic acid(FDCA)is an important and renewable building block and can serve as an alternative to terephthalic acid in the production of biobased degradable plastic.In this study,Cu-doped MnO_(2) nanorods were prepared by a facile hydrothermal redox method and employed as catalysts for the selective oxidation of 5-hydroxymethylfurfural(HMF)to FDCA using tert-butyl hydroperoxide(TBHP)as an oxidant.The catalysts were characterized using X-ray diffraction analysis,Fourier transform infrared spectroscopy,thermo-gravimetric analysis,and transmission electron microscopy.The effects of oxidants,solvents,and reaction conditions on the oxidation of HMF were investigated,and a reaction mechanism was proposed.Experimental results demonstrated that 99.4% conversion of HMF and 96.3% selectivity of FDCA were obtained under suitable conditions,and tert-butanol was the most suitable solvent when TBHP was used as an oxidant.More importantly,the Cu-doped MnO_(2) catalyst can maintain durable catalytic activity after being recycled for more than ten times.

关 键 词：5-HYDROXYMETHYLFURFURAL 2 5-furandicarboxylic acid selective oxidation Cu-doped MnO_(2) biomass transformation 

分 类 号：O643.36[理学—物理化学]