| 초록 |
Zeolites are promising materials in the industrial fields as commercial solid-acid catalysts due to their characteristic acidic properties and regular microporous structures. Generally, MOR zeolite has been known to be active for a gas-phase DME carbonylation, however, severe coke depositions on the MOR caused a fast deactivation. In terms of catalyst recycle and stability, FER zeolite has some advantages compared to the MOR due to their planner structures with less coke depositions. In the present study, the effects of metal substitutions such as In and Ga in the zeolite frameworks were investigated to control the strength and distribution of acidic sites. The zeolite synthesis was carried out with structure directing agent (SDA) and metal sources such as In and Ga precursor simultaneously. The catalyst stability and activity on the metal-incorporated FER were in-situ measured and characterized by using various surface characterization tools. |
