| 초록 |
NaNO3 as a promoter can dissociate into Mg2+ and O2- in the MgO-based adsorbent and improve the adsorption capacity of CO2. Hydrotalcite is a skeleton to form MgCO3, which can further enhance the CO2 adsorption capacity and stability of MgO. Although the basic principles and mechanisms of CO2 adsorption of these adsorbents have been found in many studies, much research has not been conducted on the real-time observation of CO2 adsorption systems. In this study, NaNO3-MgO-Al2O3 adsorbents were prepared by mixing NaNO3 and Hydrotalcite. In order to clarify the CO2 adsorption phenomenon, in-situ transmission electron microscopy (TEM) was used to observe. In this study, we will discuss in detail the information about the whole adsorption system based on the real-time structural change of NaNO3-MgO-Al2O3 during adsorption and adsorption and regeneration mechanism of adsorbent as well as real-time observation information. This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRT-2016R1C1B2008694). |
