Improving the direct air capture capacity of grafted amines thermal treatment
This study investigates the effects of elevated temperature thermal treatments on the direct air capture of CO 2 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 2 capacity (5-21%)...
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| Veröffentlicht in: | Chemical communications (Cambridge, England) England), 2024-07, Vol.6 (55), p.777-78 |
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| container_issue | 55 |
| container_start_page | 777 |
| container_title | Chemical communications (Cambridge, England) |
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| creator | Jue, Melinda L Ellebracht, Nathan C Rasmussen, Mathew J Hunter-Sellars, Elwin Marple, Maxwell A. T Yung, Matthew M Pang, Simon H |
| description | This study investigates the effects of elevated temperature thermal treatments on the direct air capture of CO
2
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
2
capacity (5-21%) that was sustained over multiple adsorption/desorption cycles.
Elevated thermal treatments increase the CO
2
capacity of aminosilane-grafted SBA-15 sorbents through freeing up additional surface hydroxyls and favoring CO
2
binding as carbamic acid. |
| doi_str_mv | 10.1039/d4cc01634c |
| format | Article |
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2
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
2
capacity (5-21%) that was sustained over multiple adsorption/desorption cycles.
Elevated thermal treatments increase the CO
2
capacity of aminosilane-grafted SBA-15 sorbents through freeing up additional surface hydroxyls and favoring CO
2
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2
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
2
capacity (5-21%) that was sustained over multiple adsorption/desorption cycles.
Elevated thermal treatments increase the CO
2
capacity of aminosilane-grafted SBA-15 sorbents through freeing up additional surface hydroxyls and favoring CO
2
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2
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
2
capacity (5-21%) that was sustained over multiple adsorption/desorption cycles.
Elevated thermal treatments increase the CO
2
capacity of aminosilane-grafted SBA-15 sorbents through freeing up additional surface hydroxyls and favoring CO
2
binding as carbamic acid.</abstract><doi>10.1039/d4cc01634c</doi><tpages>4</tpages></addata></record> |
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| ispartof | Chemical communications (Cambridge, England), 2024-07, Vol.6 (55), p.777-78 |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Improving the direct air capture capacity of grafted amines thermal treatment |
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