| Texto completo | |
| Autor(es): Mostrar menos - |
Hunvik, Kristoffer W. Bo
;
Seljelid, Konstanse Kvalem
;
Wallacher, Dirk
;
Kirch, Alexsandro
;
Cavalcanti, Leide P.
;
Loch, Patrick
;
Roren, Paul Monceyron
;
Michels-Brito, Paulo Henrique
;
Droppa Jr, Roosevelt
;
Knudsen, Kenneth Dahl
;
Miranda, Caetano Rodrigues
;
Breu, Josef
;
Fossum, Jon Otto
Número total de Autores: 13
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Langmuir; v. 39, n. 14, p. 9-pg., 2023-04-11. |
| Resumo | |
Clay minerals are abundant in caprock formations for anthropogenic storage sites for CO2, and they are potential capture materials for CO2 postcombustion sequestration. We investigate the response to CO2 exposure of dried fluorohectorite clay intercalated with Li+, Na+, Cs+, Ca2+, and Ba2+. By in situ powder X-ray diffraction, we demonstrate that fluorohectorite with Na+, Cs+, Ca2+, or Ba2+ does not swell in response to CO2 and that Li-fluorohectorite does swell. A linear uptake response is observed for Li-fluorohectorite by gravimetric adsorption, and we relate the adsorption to tightly bound residual water, which exposes adsorption sites within the interlayer. The experimental results are supported by DFT calculations. (AU) | |
| Processo FAPESP: | 17/02317-2 - Interfaces em materiais: propriedades eletrônicas, magnéticas, estruturais e de transporte |
| Beneficiário: | Adalberto Fazzio |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |