In this study, ternary mixed oxide catalysts containing AlO-MoO-MgO and AlO-MoO-WO were prepared with a changing ratio of MoO:AlO between 0.05 and 20.00. All catalysts showed 100% selectivity towards propene during the conversion of propan-2-ol at temperatures between 220 and 400 °C. The catalysts prepared from WO possessed very strong acid sites, which cause higher catalytic activity than catalysts prepared from MgO. Besides, the ratio of MoO:AlO was found to be directly proportional to the conversion yield for all catalysts. XRD results show that whole MgO reacted with AlO and MoO to form amorphous MgMoO and MgAlO phases during catalyst preparation. Furthermore, WO reacted only with AlO to form Al(WO) and WO phase was also detected in the final product. The higher surface acidity and catalytic activity of AlO-MoO-WO catalyst referred to this WO phase within the structure.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10446922 | PMC |
| http://dx.doi.org/10.55730/1300-0527.3505 | DOI Listing |
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