This study presents the development of a novel calcium-oxide sorbent for carbon dioxide capture. In this work. CaO sorbent was impregnated with different molar percentage of titanium ethoxide. The sorbent prepared with 50% of titanium ethoxide resulted in the best uptake characteristics for CO2. Compared to others, a higher BET surface area and a larger pore volume were observed. An excellent stability during extended carbonation-decarbonation cycles was also demonstrated. The high titanium content limits the sintering of particles and thus stabilizes the microstructure of CaO. (C) 2012 Elsevier B.V. All rights reserved.