期刊
CHEMSUSCHEM
卷 7, 期 12, 页码 3334-3340出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402843
关键词
2,5-furandicarboxylicacid dimethyl ester; 5-hydroxymethylfurfural; cobalt oxides; heterogeneous catalysis; oxidative esterification
资金
- 973 Program [2012CB215305, 2013CB228103]
- NSFC [21402181, 21325208, 21172209, 21272050]
- CAS [KJCX2-EW-J02]
- FRFCU [WK2060190025, WK2060190033]
- SRFDP [20123402130008]
- China Postdoctoral Science Foundation [2014M561835]
- Hefei Leaf Energy Biotechnology Co., Ltd.
- Anhui Kemi Machinery Technology Co., Ltd.
2,5-Furandicarboxylic acid (FDCA) is considered to be a promising replacement for terephthalic acid since they share similar structures and properties. In contrast to FDCA, 2,5-furandicarboxylic acid methyl (FDCAM) has properties that allow it to be easily purified. In this work, we reported an oxidative esterification of 5-hydroxymethylfurfural (HMF) and furfural to prepare corresponding esters over CoxOy-N@C catalysts using O-2 as benign oxidant. High yield and selectivity of FDCAM and methyl 2-furoate were obtained under optimized conditions. Factors which influenced the product distribution were examined thoroughly. The CoxOy-N@C catalysts were recycled five times and no significant loss of activity was detected. Characterization of the catalysts could explain such phenomena. Using XPS and TGA, we made a thorough investigation of the effects of ligand and pyrolysis temperature on catalyst activity.
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