Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

Abstract Implementing Paris Climate Accord is inhibited by the high energy consumption of the state-of-the-art CO 2 capture technologies due to the notoriously slow kinetics in CO 2 desorption step of CO 2 capture. To address the challenge, here we report that nanostructured TiO(OH) 2 as a catalyst is capable of drastically increasing the rates of CO 2 desorption from spent monoethanolamine (MEA) by over 4500%. This discovery makes CO 2 capture successful at much lower temperatures, which not only dramatically reduces energy consumption but also amine losses and prevents emission of carcinogenic amine-decomposition byproducts. The catalytic effect of TiO(OH) 2 is observed with Raman characterization. The stabilities of the catalyst and MEA are confirmed with 50 cyclic CO 2 sorption and sorption. A possible mechanism is proposed for the TiO(OH) 2 -catalyzed CO 2 capture. TiO(OH) 2 could be a key to the future success of Paris Climat e Accord.