“…Actually, CO 2 is a valuable chemical feedstock, which competes with the CO-based C1 building blocks, that is CO, phosgene and methanol. The utilization of secondary CO 2 as a feedstock for producing chemicals is an interesting challenge to catalysis and industrial chemistry (Centi and Perathoner, 2004;Gong et al , 2007;Ballivet-Tkatchenko and Sorokina, 2003;Sakakura et al , 2007;Lee et al , 1989;Raudaskoski et al , 2009;Ballivet-Tkatchenko et al , 2006a, 2006b. The key motivations to produce chemicals from CO 2 is the possibility that CO 2 can lead to totally new and innovative polymeric materials.…”