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Creators/Authors contains: "Cheng, Huaigang"

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  1. ; ; ; ; ; ; ; (, Nature Communications)
    Abstract Implementing Paris Climate Accord is inhibited by the high energy consumption of the state-of-the-art CO2capture technologies due to the notoriously slow kinetics in CO2desorption step of CO2capture. To address the challenge, here we report that nanostructured TiO(OH)2as a catalyst is capable of drastically increasing the rates of CO2desorption from spent monoethanolamine (MEA) by over 4500%. This discovery makes CO2capture 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)2is observed with Raman characterization. The stabilities of the catalyst and MEA are confirmed with 50 cyclic CO2sorption and sorption. A possible mechanism is proposed for the TiO(OH)2-catalyzed CO2capture. TiO(OH)2could be a key to the future success of Paris Climat e Accord. 
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