| 초록 |
Single-step conversion of methane to its oxygenated derivatives, such as methanol, is a challenging topic in C1 chemistry. The presence of Brønsted-acidic sites, N- and O-type chelating ligands, and noble metals are demonstrated to be essential criteria for effective catalysis of this reaction. Considering these criteria, Poly-d-glucosamine (Ch) was used as chelating ligand for Ag, to prepare AgCh complex. The prepared complex was characterized by techniques including solid-state 1H-NMR, FE-TEM, XANES, and XPS. This study elucidates the effects of the oxidant and promoters on the methane oxidation. It was observed that the addition ionic liquid as a promoter to the hydrogen peroxide and oxygen-containing AgCh system could enhance the methanol production representing 18-fold yield increase and an 8-fold methane conversion increase when compared to the results (175 µmol) without a promoter. This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, (NRF-2016R1D1A1B03930855). |
