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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.51A [2012] >
IJC-A Vol.51A(09-10) [September-October 2012] >
| Title: | Carbon dioxide capture by metal organic frameworks |
| Authors: | Saha, Subhadeep
Chandra, Suman
Garai, Bikash
Banerjee, Rahul |
| Keywords: | Metal organic frameworks
Carbon dioxide capture
Carbon dioxide adsorbents
Porous nanocarbons
Nanocarbons
Hybrid materials |
| Issue Date: | Sep-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The design and synthesis of
functionalized metal organic frameworkÂ
materials (MOFs) for reversible physisorption of CO2 is
discussed. This strategy of CO2 adsorption in MOFs requires less energy
for regeneration than materials relying on chemisorption. As a result the MOFs
have received considerable attention as
sorbent materials for strategic gases such as CO2 and H2.
In this review, we have discussed different MOFs and
hybrid materials containing MOFs which can adsorb CO2 at room
temperature. In order to achieve high adsorption capacity, fast CO2
adsorption-desorption and low energy requirement for regeneration are
necessary. Several avenues for increasing the CO2 adsorption
capacity of such materials, for instance, introduction of open metal sites and
the use of ligand molecules with specific functionalities (like -OH or
-NH2) have been described. It has been observed
that CO2 loading capacity of MOFs increases with functionalization.
Herein, we have discussed how N-containing and fluorinated MOFs are designed to
achieve higher CO2 loading than their non-functionalized
counterparts. Nanocarbons (e.g. carbon nanotubes, carbon nanofibres, etc.) are
porous materials and a blend of these porous materials with porous MOFs or
porous carbon derived from MOFs may act as a better adsorbate than even the
pure materials. Enhancement of CO2 loading by nanocarbon-MOF hybrid
material is also discussed.
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| Page(s): | 1223-1230 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.51A(09-10) [September-October 2012]
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