Adsorption and diffusion of carbon dioxide on metal-organic framework (MOF-5)
- Arizona State University, Tempe, AZ (United States). Dept. of Chemical Engineering
Adsorption equilibrium and diffusion of CO{sub 2} on microporous metal-organic frameworks (MOF-5, or IRMOF-1) crystals were experimentally studied by the gravimetric method in the pressure range up to 1 atm. The MOF-5 crystal cubes of about 40-60 {mu} m in sizes were synthesized by the solvothermal method. Freundlich adsorption isotherm equation can fit well CO{sub 2} adsorption isotherms on MOF-5, with isosteric heat of adsorption of about 34 kJ/mol. Diffusion coefficient of CO{sub 2} in the MOF-5 is in the range of 8.1-11.5 x 10{sup -9} cm{sup 2}/s in 295-331K with activation energy of 7.61 kJ/mol. MOF-5 offers attractive adsorption properties as an adsorbent for separation of CO{sub 2} from flue gas.
- OSTI ID:
- 21261647
- Journal Information:
- Industrial and Engineering Chemistry Research, Vol. 48, Issue 22; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
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