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The excellent catalyst support of Al2O3 fibers with needle-like mullite structure and HMF oxidation into FDCA over CuO/Al2O3 fibers.
- Source :
-
Ceramics International . Feb2019:Part A, Vol. 45 Issue 2, p2330-2337. 8p. - Publication Year :
- 2019
-
Abstract
- Abstract Al 2 O 3 fibers, especially with unique morphology and structure, are a fascinating class of ceramics that have been widely used as catalyst supports. In this work, smooth, porous and needle-like Al 2 O 3 fibers are successfully prepared by electro-blowing spinning (EBS) method. Effects of calcination temperature, calcination rate and pore forming agent content (Polytetrafluoroethylene, PTFE) on the morphology and structure of Al 2 O 3 fibers are systematically studied. Most importantly, Al 2 O 3 fibers with different morphologies are particular suitable to be used as CuO supports for selective oxidation of 5-hydroxymethyl-2-furfural (HMF) to 2,5-furandicarboxylic acid (FDCA). Benefiting from the unique structure, FDCA synthesis over the needle-like CuO/Al 2 O 3 fibers achieves 98.6% yield, which is much higher than the yields over smooth and porous CuO/Al 2 O 3 fibers. Moreover, the fiber catalysts could be easily recovered and reused without the loss of its activity. It is anticipated that Al 2 O 3 fibers with needle-like mullite will shed some light on the development of profiled ceramic fibers for various applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 45
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 133169267
- Full Text :
- https://doi.org/10.1016/j.ceramint.2018.10.148