Journal
ENERGY CONVERSION AND MANAGEMENT
Volume 88, Issue -, Pages 1245-1251Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2014.03.037
Keywords
Biofuel; Hybrid nanospheres; Heterogeneous catalysis; 5-Ethoxymethylfurfural; 5-Hydroxymethylfurfural; Acid-base bifunctional catalysts
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Funding
- Danish Council for Independent Research-Technology and Production Sciences [10-081991]
- Chinese State Scholarship Fund [201306670004]
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A series of acid base bifunctional hybrid nanospheres prepared from the self-assembly of basic amino acids and phosphotungstic acid (HPA) with different molar ratios were employed as efficient and recyclable catalysts for synthesis of liquid biofuel 5-ethoxymethylfurfural (EMF) from various carbohydrates. A high EMF yield of 76.6%, 58.5%, 42.4%, and 36.5% could be achieved, when fructose, inulin, sorbose, and sucrose were used as starting materials, respectively. Although, the acid base bifunctional nanocatalysts were inert for synthesis of EMF from glucose based carbohydrates, ethyl glucopyranoside in good yields could be obtained from glucose in ethanol. Moreover, the nanocatalyst functionalized with acid and basic sites was able to be reused several times with no significant loss in catalytic activity. (C) 2014 Elsevier Ltd. All rights reserved.
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