| 초록 |
Direct methane conversion to valuable chemical has captivated the interest of the scientific and industrial community for more than a century. One such method of methane valorization is the selective oxidation of methane to methanol. However, the direct oxidation of methane to methanol in high yield is difficult due to the over-oxidation of methanol to CO2. The protection of methanol in the form of an ester, such as methyl bisulfate and methyl trifluoroacetate, enables liquid homogeneous methane oxidation systems to reach high yields. In this study, we investigated the methane oxidation to methyl trifluoroacetate. using K2S2O8 as an oxidant, Pd compound as a catalyst, and trifluoroacetic acid as a solvent. We tested various kinds of Pd catalysts and found anionic Pd catalyst showed the best catalytic activity. Effect of catalyst concentration and reaction time on the oxidation reaction have been investigated. Furthermore, characterization of catalytic active species was suggested. |
