TiO(OH)2 can exceed the critical limit of conventional CO2 sorbents: modification needed for high capacity and selectivity

Fan Wu; Paul A Dellenback; Sam Toan; Christopher K Russell; Maohong Fan

doi:10.1039/c8cc03185a

TiO(OH)₂ can exceed the critical limit of conventional CO₂ sorbents: modification needed for high capacity and selectivity

Chem Commun (Camb). 2018 Jul 24;54(60):8395-8398. doi: 10.1039/c8cc03185a.

Authors

Fan Wu¹, Paul A Dellenback, Sam Toan, Christopher K Russell, Maohong Fan

Affiliation

¹ Department of Mechanical Engineering, University of Wyoming, Laramie, WY 82071, USA.

PMID: 29998264
DOI: 10.1039/c8cc03185a

Abstract

High-performance CO2 sorbents typically contain both alkaline compounds and inert supporting materials. The convention is broken by TiO(OH)2. The CO2 sorption capacity of nanostructured TiO(OH)2 reaches 6.1 mmol g-1, while its CO2 sorption selectivity for CO2/N2 mixtures is much higher than that of state-of-the-art sorbents, activated carbon and zeolite, which is another surprise.