Kiel,

Williams, N.; et al. (2019): CO2 Capture via Crystalline Hydrogen-Bonded Bicarbonate Dimers

Williams, N.; Seipp, C.; Brethomé, F.; Ma, Y.; Ivanov, A.; Bryantsev, V. et al. (2019): CO2 Capture via Crystalline Hydrogen-Bonded Bicarbonate Dimers. In: Chem. DOI: 10.1016/j.chempr.2018.12.025.

"Human activities in the last one and a half centuries have perturbed the natural carbon cycle, shifting massive amounts of carbon from the geosphere into the atmosphere and leading to climate change at an unprecedented pace. [...] Here, we demonstrate a promising approach to CO2 capture based on crystallization of bicarbonate-water clusters with a simple guanidine compound. The CO2 separation cycle involves a unique proton-transfer mechanism via the formation of a carbonic acid dimer, leading to efficient CO2 release and quantitative regeneration of the guanidine compound and requiring significantly less energy than state-of-the-art carbon-capture technologies."

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