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Intercalation and Retention of Carbon Dioxide in a Smectite Clay promoted by Interlayer Cations

Michels, Leander; Fossum, Jon Otto; Rozynek, Zbigniew; Hemmen, Henrik; Rustenberg, Karin; Sobas, P; Kalantzopoulos, G; Knudsen, Kenneth; Janek, M and Plivelic, Tomás LU , et al. (2015) In Scientific Reports 5.
Abstract
A good material for CO2 capture should possess some specific properties: (i) a large effective surface area

with good adsorption capacity, (ii) selectivity for CO2, (iii) regeneration capacity with minimum energy

input, allowing reutilization of the material for CO2 adsorption, and (iv) low cost and high environmental

friendliness. Smectite clays are layered nanoporous materials that may be good candidates in this context.

Here we report experiments which show that gaseous CO2 intercalates into the interlayer nano-space of

smectite clay (synthetic fluorohectorite) at conditions close to ambient. The rate of intercalation, as well as

the retention ability of CO2 was found to be strongly... (More)
A good material for CO2 capture should possess some specific properties: (i) a large effective surface area

with good adsorption capacity, (ii) selectivity for CO2, (iii) regeneration capacity with minimum energy

input, allowing reutilization of the material for CO2 adsorption, and (iv) low cost and high environmental

friendliness. Smectite clays are layered nanoporous materials that may be good candidates in this context.

Here we report experiments which show that gaseous CO2 intercalates into the interlayer nano-space of

smectite clay (synthetic fluorohectorite) at conditions close to ambient. The rate of intercalation, as well as

the retention ability of CO2 was found to be strongly dependent on the type of the interlayer cation, which

in the present case is Li1, Na1 or Ni21. Interestingly, we observe that the smectite Li-fluorohectorite is

able to retain CO2 up to a temperature of 356C at ambient pressure, and that the captured CO2 can be

released by heating above this temperature. Our estimates indicate that smectite clays, even with the

standard cations analyzed here, can capture an amount of CO2 comparable to other materials studied in this

context. (Less)
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Scientific Reports
volume
5
publisher
Nature Publishing Group
external identifiers
  • wos:000350453200002
  • pmid:25739522
  • scopus:84924326376
ISSN
2045-2322
DOI
10.1038/srep08775
language
English
LU publication?
yes
id
1bb57ebd-4d8b-48eb-bfa7-eb79e8585b77 (old id 5152217)
date added to LUP
2015-03-09 14:29:12
date last changed
2017-11-19 03:58:47
@article{1bb57ebd-4d8b-48eb-bfa7-eb79e8585b77,
  abstract     = {A good material for CO2 capture should possess some specific properties: (i) a large effective surface area<br/><br>
with good adsorption capacity, (ii) selectivity for CO2, (iii) regeneration capacity with minimum energy<br/><br>
input, allowing reutilization of the material for CO2 adsorption, and (iv) low cost and high environmental<br/><br>
friendliness. Smectite clays are layered nanoporous materials that may be good candidates in this context.<br/><br>
Here we report experiments which show that gaseous CO2 intercalates into the interlayer nano-space of<br/><br>
smectite clay (synthetic fluorohectorite) at conditions close to ambient. The rate of intercalation, as well as<br/><br>
the retention ability of CO2 was found to be strongly dependent on the type of the interlayer cation, which<br/><br>
in the present case is Li1, Na1 or Ni21. Interestingly, we observe that the smectite Li-fluorohectorite is<br/><br>
able to retain CO2 up to a temperature of 356C at ambient pressure, and that the captured CO2 can be<br/><br>
released by heating above this temperature. Our estimates indicate that smectite clays, even with the<br/><br>
standard cations analyzed here, can capture an amount of CO2 comparable to other materials studied in this<br/><br>
context.},
  articleno    = {8775},
  author       = {Michels, Leander and Fossum, Jon Otto and Rozynek, Zbigniew and Hemmen, Henrik and Rustenberg, Karin and Sobas, P and Kalantzopoulos, G and Knudsen, Kenneth and Janek, M and Plivelic, Tomás and da Silva, Geraldo},
  issn         = {2045-2322},
  language     = {eng},
  publisher    = {Nature Publishing Group},
  series       = {Scientific Reports},
  title        = {Intercalation and Retention of Carbon Dioxide in a Smectite Clay promoted by Interlayer Cations},
  url          = {http://dx.doi.org/10.1038/srep08775},
  volume       = {5},
  year         = {2015},
}