초록 |
Mesoporous MgO nanoparticles have been synthesized via chemical combustion route by using different fuels and different fuel to oxidizer (F/O) ratios. As synthesized MgO nanoparticles are evaluated as potential candidates for high temperature CO2 sorption. The effects of types of fuel, F/O ratio, crystalline structure, morphology, and nature of dispersion on the CO2 sorption performance were extensively investigated. It was deduced that complexation of MgO precursor with the fuel is critical in determining the surface characteristics and CO2 sorption properties of mesoporous MgO nanoparticles. The highest CO2 sorption was obtained for MgO-2.0(G) using glycine as the fuel, corresponding to 1.2 mmol-CO2/g at 200 oC. This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Grant number: NRF-2013R1A1A2060638). |