A typical TGA curve for CO2 adsorption capacity measurement using Mg-Al LDH

https://doi.org/10.1016/j.ces.2011.09.052

“A typical TGA curve for CO₂ adsorption capacity measurement is shown in Fig. 4. At stage 1, the sample was pre-treated at 105 °C for 30 min under N₂. The weight loss at this stage was attributed to the loss of absorbed water. In stage 2 the sample was cooled to the required temperature for the CO₂ adsorption test. A slight weight gain was caused by N₂ adsorption on the sample. After the sample temperature was stable (stage 3), the gas input was switched to CO₂ and the associated weight gain was assumed to be due to the adsorbed CO₂.”

“Fig. 4. A typical TGA curve for CO₂ adsorption capacity measurement.”