Fabrication of multi-shelled hollow Mg-modified CaCO 3 microspheres and their improved CO 2 adsorption performance

Novel multi-shelled hollow Mg-modified CaCO3 microspheres were successfully prepared through a facile, green method by using carbonaceous microsphere as a template with controllable Ca/Mg molar ratio, size and shells number. The triple-shelled hollow microspheres structure facilitated CO2 diffusion and buffered mechanical stresses of volume change during the carbonation/calcination process. Connected with sintering-resistance of inert...