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Selective Hydrogenation of Cinnamaldehyde to Hydrocinnamaldehyde over SiO2 Supported Nickel Phosphide Catalysts.
- Source :
-
Catalysis Letters . Sep2008, Vol. 124 Issue 3/4, p219-225. 7p. 1 Black and White Photograph, 4 Charts, 5 Graphs. - Publication Year :
- 2008
-
Abstract
- A series of SiO2 supported transition metal (Fe, Co, Ni, Mo and W) phosphide catalysts were synthesized and tested for the selective hydrogenation of cinnamaldehyde (CMA). Among these tested catalysts, Ni12P5/SiO2 and Ni2P/SiO2 prepared with initial Ni/P ratios of 2/1.3 and 1/1 exhibited high activity and selectivity for the conversion of CMA to hydrocinnamaldehyde (HCMA). The two nickel phosphide catalysts showed selectivity to HCMA up to 90% at a conversion of 90%. The properties of the nickel phosphide catalysts were characterized by BET surface area determinations, X-ray powder diffraction (XRD) analysis, and transmission electron microscopy (TEM). The influences of reaction temperature, hydrogen pressure, Ni/P ratio, and reduction temperature were studied in detail. For comparison, Pd/SiO2 catalyst was also used in this reaction, and the possible reasons for the different catalytic performances of the two kinds of catalysts are presented. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CHEMICAL inhibitors
*CATALYSIS
*CATALYSTS
*REGENERATION (Theology)
*NICKEL
Subjects
Details
- Language :
- English
- ISSN :
- 1011372X
- Volume :
- 124
- Issue :
- 3/4
- Database :
- Academic Search Index
- Journal :
- Catalysis Letters
- Publication Type :
- Academic Journal
- Accession number :
- 33770015
- Full Text :
- https://doi.org/10.1007/s10562-008-9472-y