CO2 Capture by Nickel Hydroxide Interstratified in the Nanolayered Space of a Synthetic Clay Mineral
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CO2 Capture by Nickel Hydroxide Interstratified in the Nanolayered Space of a Synthetic Clay Mineral. / Hunvik, Kristoffer W. Bo; Loch, Patrick; Cavalcanti, Leide P.; Seljelid, Konstanse Kvalem; Roren, Paul Monceyron; Rudic, Svemir; Wallacher, Dirk; Kirch, Alexsandro; Knudsen, Kenneth Dahl; Miranda, Caetano Rodrigues; Breu, Josef; Bordallo, Heloisa N.; Possum, Jon Otto.
In: Journal of Physical Chemistry C, Vol. 124, No. 48, 03.12.2020, p. 26222-26231.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - CO2 Capture by Nickel Hydroxide Interstratified in the Nanolayered Space of a Synthetic Clay Mineral
AU - Hunvik, Kristoffer W. Bo
AU - Loch, Patrick
AU - Cavalcanti, Leide P.
AU - Seljelid, Konstanse Kvalem
AU - Roren, Paul Monceyron
AU - Rudic, Svemir
AU - Wallacher, Dirk
AU - Kirch, Alexsandro
AU - Knudsen, Kenneth Dahl
AU - Miranda, Caetano Rodrigues
AU - Breu, Josef
AU - Bordallo, Heloisa N.
AU - Possum, Jon Otto
PY - 2020/12/3
Y1 - 2020/12/3
N2 - Clay minerals can adsorb large amounts of CO2 and are present in anthropogenic storage sites for CO2. Nanoscale functionalization of smectite clay minerals is essential for developing technologies for carbon sequestration based on these materials and for safe-guarding relevant long-term carbon storage sites. We investigate the adsorption mechanisms of CO2 in dried and hydrated synthetic Ni-exchanged fluorohectorite clay-using a combination of powder X-ray diffraction, Raman spectroscopy, and inelastic neutron scattering. Both dried and hydrated Ni-exchanged fluorohectorite show crystalline swelling and spectroscopic changes in response to CO2 exposure. These changes can be attributed to interactions with [Ni(OH)(0.)(83)(H2O)(1.)(17)](0.)(1.17+)(37)-interlayer species, and swelling occurs solely in the interlayers where this condensed species is present. The experimental conclusions are supported by density functional theory simulations. This work demonstrates a hitherto overlooked important mechanism, where a hydrogenous species present in the nanospace of a clay mineral creates sorption sites for CO2.
AB - Clay minerals can adsorb large amounts of CO2 and are present in anthropogenic storage sites for CO2. Nanoscale functionalization of smectite clay minerals is essential for developing technologies for carbon sequestration based on these materials and for safe-guarding relevant long-term carbon storage sites. We investigate the adsorption mechanisms of CO2 in dried and hydrated synthetic Ni-exchanged fluorohectorite clay-using a combination of powder X-ray diffraction, Raman spectroscopy, and inelastic neutron scattering. Both dried and hydrated Ni-exchanged fluorohectorite show crystalline swelling and spectroscopic changes in response to CO2 exposure. These changes can be attributed to interactions with [Ni(OH)(0.)(83)(H2O)(1.)(17)](0.)(1.17+)(37)-interlayer species, and swelling occurs solely in the interlayers where this condensed species is present. The experimental conclusions are supported by density functional theory simulations. This work demonstrates a hitherto overlooked important mechanism, where a hydrogenous species present in the nanospace of a clay mineral creates sorption sites for CO2.
U2 - 10.1021/acs.jpcc.0c07206
DO - 10.1021/acs.jpcc.0c07206
M3 - Journal article
VL - 124
SP - 26222
EP - 26231
JO - The Journal of Physical Chemistry Part C
JF - The Journal of Physical Chemistry Part C
SN - 1932-7447
IS - 48
ER -
ID: 256067346