Back to Search
Start Over
Cyclohexane oxidation over Cu2O–CuO and CuO thin films deposited by CVD process on fiberglass
Cyclohexane oxidation over Cu2O–CuO and CuO thin films deposited by CVD process on fiberglass
- Source :
-
Applied Catalysis A: General . Jan2003, Vol. 238 Issue 1, p1. 9p. - Publication Year :
- 2003
-
Abstract
- Cu2O–CuO and CuO thin films on a fiberglass substrate were prepared by chemical vapor deposition (CVD) and then catalytically evaluated by cyclohexane oxidation. The fiber with a Cu2O–CuO film showed a high catalytic activity at low temperatures, for example 43% at 350 °C, and a good selectivity to cyclohexanol production (37% at 300 °C). The fiber with a CuO film exhibited a higher catalytic activity, for example 48% at 350 °C, with a high yield of cyclohexanone (37% at 250 °C). A CuO/SiO2 catalyst with the same CuO content gave a result similar to the CuO/fiberglass system under the same conditions examined but, on the other hand cyclohexane was cleaved giving a higher selectivity to hexenes, 30% at 250 °C. The effect of reaction temperature on the catalytic activity and selectivity of cyclohexane oxidation were investigated. At 300 °C the steady-state catalytic performance of the CuO/fiberglass experienced a slight deactivation after 4 h time-on stream from 40% to 38% of conversion, after which, the catalyst could be reused apparently without any activity loss. [Copyright &y& Elsevier]
- Subjects :
- *THIN films
*CHEMICAL vapor deposition
*CYCLOHEXANE
*COPPER oxide
*GLASS fibers
Subjects
Details
- Language :
- English
- ISSN :
- 0926860X
- Volume :
- 238
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Applied Catalysis A: General
- Publication Type :
- Academic Journal
- Accession number :
- 8575855
- Full Text :
- https://doi.org/10.1016/S0926-860X(02)00074-1