Nov, 2004
Dehydration of diols catalyzed by CeO2
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
- ,
- ,
- ,
- Volume
- 221
- Number
- 1-2
- First page
- 177
- Last page
- 183
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1016/j.molcata.2004.07.004
- Publisher
- ELSEVIER SCIENCE BV
Dehydration of several 1,3-diols into unsaturated alcohols was investigated over pure CeO2 at 325-425 degreesC. 1,3-Diols are more reactive than other diols and monoalcohols over CeO2. In the dehydration of 1,3-propanediol, 1,3-butanediol, 3-methyl-1,3-butanediol, 2,4-pentanediol, and 2-methyl-2,4-pentanediol, unsaturated alcohols are selectively produced at 325 degreesC. In the dehydration of 2-methyl-1,3-propanediol, the corresponding unsaturated alcohol is produced with low selectivity: decomposition simultaneously proceeds. TPR experiment reveals that active CeO2 surface is maintained at high valence of Ce4+ in the water-producing reaction. It is speculated that redox nature between Ce4+-Ce3+ affects the dehydration of 1,3-diols. (C) 2004 Elsevier B.V. All rights reserved.
- Link information
- ID information
-
- DOI : 10.1016/j.molcata.2004.07.004
- ISSN : 1381-1169
- CiNii Articles ID : 80016887965
- Web of Science ID : WOS:000224328900023