%0 Journal Article
%@ 13886150
%A Lwin, Y.
%A Abdullah, F.
%D 2009
%F scholars:705
%J Journal of Thermal Analysis and Calorimetry
%K Adsorption capacity; Adsorption kinetics; CO2 adsorption; Hydrotalcite; Mixed oxide sorbents; Thermogravimetry, Activation energy; Carbon dioxide; Chemisorption; Gas adsorption; Thermogravimetric analysis; Wastewater treatment, Carbon monoxide
%N 3
%P 885-889
%R 10.1007/s10973-009-0156-7
%T High temperature adsorption of carbon dioxide on Cu-Al hydrotalcite-derived mixed oxides: Kinetics and equilibria by thermogravimetry
%U https://khub.utp.edu.my/scholars/705/
%V 97
%X The effect of Cu/Al molar ratio on the high-temperature adsorption characteristics of CO2 on the mixed oxides of Cu-Al hydrotalcite skeletal structure has been studied by thermogravimetry. The Cu/Al molar ratio of the hydrotalcites synthesized was varied between 1.0 and 3.0, and the adsorption temperature ranged from ambient to 600 °C. The hydrotalcite with Cu/Al molar ratio of 2.0 was found to be the most suitable adsorbent for high-temperature CO2 adsorption, in both the capacity and the rate of adsorption. The activation energy values suggested that the physical adsorption dominates at low temperatures (<400 °C) and the chemisorption dominates at high temperatures (>400 °C). © 2009 Akadémiai Kiadó, Budapest, Hungary.
%Z cited By 57