期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 151, 期 1-2, 页码 233-243出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1381-1169(99)00248-4
关键词
niobium phosphate; phosphoric acid-treated niobium oxide; heterogeneous catalysts; acid sites characterization; fructose dehydration; 5-hydroxymethyl-2-furaldehyde
The nature of different acid sites on the surface of various niobium-based catalysts has been spectroscopically investigated by means of FT-IR and UV-VIS techniques. Surface acidity has been further characterized by acetonitrile adsorption and subsequent FT-IR analysis. The catalytic activity of the different examined samples has been preliminarily tested in the fructose dehydration to 5-hydroxymethyl-2-furaldehyde, a reaction of relevant industrial interest. (C) 2000 Elsevier Science B.V. All rights reserved.
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