| 초록 |
For the reduction of anthropogenic CO2 emissions, the direct transformation of CO2 into various chemicals such as alcohols, lower olefins and fuels has the potential to make a decisive impact in our society. However, the synthesis of aromatics from one-pass CO2 hydrogenation is still a great challenge owing to the extreme inertness of CO2 and higher C–C coupling barrier. Therefore, the mesoporous Zn/ZrO2 with varying Zn content was investigated for the CO2 hydrogenation to methanol. The synergetic effect between the Zn and Zr sites in the catalyst significantly promotes the activation of H2 and CO2. This catalyst also efficiently converts the CO2 to methanol at a relatively higher temperature with high selectivity and stability. Furthermore, bifunctional catalyst composed of Zn/ZrO2 with HZSM-5 used for direct CO2 hydrogenation to aromatics via MeOH/DME intermediates. |
