New strategy of �carbon insertion� to synthesize an efficient CO2-capturer is reported, which utilize the inherent carbon source of magnesium acetate to produce lots of carbon nanoparticles and in situ separate the co-existed MgO nanoparticles. The carbon-adulterated magnesia is formed in the thermal treatment of magnesium acetate in the range of 673~873 K, giving the porous MgO sorbent with a high surface area above 200 m2 g-1 and about 2% of carbon. As the aggregation of MgO nano-particles is suppressed and the accessibility of basic sites for CO2 increased, the porous MgO composites exhibits a high adsorption capacity of CO2 up to 28 mg g�1 at in the instantaneous adsorption at 473 K, offering a new candidate for adsorbing CO2 in flue gas vent and more importantly, the new environmental benign pathway to fabricate special functional materials.

New porous MgO sorbent to capture CO<sub>2</sub> at 473 K

248th National Meeting (2014)

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New porous MgO sorbent to capture CO2 at 473 K

New porous MgO sorbent to capture CO₂ at 473 K