| 초록 |
Three types of alumina-supported bimetallic Ni–Cu catalysts (Ni–Cu/commercial non-ordered mesoporous alumina (CMA), Ni–Cu/ordered MA (OMA), and Ni–Cu–OMA) were prepared via different fabrication strategies and were investigated in the conversion of levulinic acid (LA) into gamma-valerolactone (GVL) and 2-methyltetrahydrofuran (2-MTHF). The catalysts constructed on OMA supports displayed superior catalytic performance than those constructed on CMA supports. Specifically, Ni–Cu–OMA, which was fabricated via the one-pot evaporation-induced self-assembly (EISA) strategy, exhibited the best catalytic performance, achieving high selectivity of 73.0% toward 2-MTHF in a solvent-free reaction environment. The promising activity of Ni–Cu–OMA was ascribed to the well-dispersed active sites within the framework of the support, the enhanced metal-support interaction, and the highly efficient exploitation of the synergistic effect between Ni and Cu. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A5A1019131). |
