Catalyst-TiO(OH) could drastically reduce the energy consumption of CO capture.

Implementing Paris Climate Accord is inhibited by the high energy consumption of the state-of-the-art CO capture technologies due to the notoriously slow kinetics in CO desorption step of CO capture. To address the challenge, here we report that nanostructured TiO(OH) as a catalyst is capable of drastically increasing the rates of CO desorption from spent monoethanolamine (MEA) by over 4500%. This discovery makes CO 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) is observed with Raman characterization. The stabilities of the catalyst and MEA are confirmed with 50 cyclic CO sorption and sorption. A possible mechanism is proposed for the TiO(OH)-catalyzed CO capture. TiO(OH) could be a key to the future success of Paris Climat e Accord.