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Preparation of cobalt titanium silicalite 1 catalyst |
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| รหัสดีโอไอ | |
| Title | Preparation of cobalt titanium silicalite 1 catalyst |
| Creator | Nitiporn Sangngaen |
| Contributor | Tharathon Mongkhonsi |
| Publisher | Chulalongkorn University |
| Publication Year | 2548 |
| Keyword | Cobalt catalysts |
| Abstract | Titanium silicalite incorporated with various content of cobalt was synthesized by the hydrothermal method. The synthesized catalyst (Co-TS-1) were characterized by various techniques XRF, BET, XRD, FT-IR, SEM, XPS and NH[subscript 3]-TPD, to study the effects of cobalt on the formation of titanium silicalite crystal. The oxidation properties of Co-TS-1 catalysts were investigated by using the gas phase oxidation reaction of 2-propanol as the test reaction. The study reveals that the maximum amount of cobalt which can be incorporated into the TS-1 structure without any interference to the main TS-1 structure is about 0.38 mol%. The analysis by XPS reveals that the oxidation state of cobalt cation in the TS-1 framework is +2. In addition, the incorporation of cobalt increases the amount of the weak acid site while the amount of the strong acid site decreases. The Co-TS-1 catalysts exhibit higher catalytic activity for the dehydration reaction than theunmodified TS-1 was also found that the selectivity toward propylene of Co-TS-1 is also higher than that of the unmodified TS-1 |
| ISBN | 9741764723 |
| URL Website | cuir.car.chula.ac.th |
