We investigated CO2 absorption behavior of Li2CuO2 at room temperature. Li2CuO2 was pulverized by planetary ball milling under CO2 atmosphere at room temperature. The thermogravimetric analysis (TG) and X-ray diffraction (XRD) of the pulverized samples were performed to evaluate the CO2 absorption behavior. From the result of TG and XRD, we found that the smaller the particle size of the sample, the more CO2 absorption of that.
