Improving the direct air capture capacity of grafted amines via thermal treatment

This study investigates the effects of elevated temperature thermal treatments on the direct air capture of CO by aminosilane-grafted SBA-15 silica sorbents. Exposing samples to high temperatures (200-250 °C compared to 80-120 °C) in an inert environment resulted in improved CO capacity (5-21%) that...

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Published inChemical communications (Cambridge, England) Vol. 60; no. 55; pp. 7077 - 7080
Main Authors Jue, Melinda L, Ellebracht, Nathan C, Rasmussen, Mathew J, Hunter-Sellars, Elwin, Marple, Maxwell A T, Yung, Matthew M, Pang, Simon H
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 04.07.2024
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Summary:This study investigates the effects of elevated temperature thermal treatments on the direct air capture of CO by aminosilane-grafted SBA-15 silica sorbents. Exposing samples to high temperatures (200-250 °C compared to 80-120 °C) in an inert environment resulted in improved CO capacity (5-21%) that was sustained over multiple adsorption/desorption cycles.
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USDOE Office of Fossil Energy and Carbon Management (FECM), Office of Carbon Management
AC36-08GO28308; FWP-FEW0277; AC52-07NA27344; AC36- 08GO28308
NREL/JA-5100-90469; LLNL-JRNL-860439
USDOE National Nuclear Security Administration (NNSA)
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/d4cc01634c