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Published on: June 16, 2014
Functionalized NU-1000 with an Iridium Organometallic Fragment: SO2 Capture Enhancement
Saidulu Gorla1, Mariana L Díaz-Ramírez2, Niroshani S Abeynayake1
1Department of Chemistry, Mississippi State University, P.O. Box 9573, Mississippi State, Mississippi 39762, United States.
Abstract:
A new material, MOF-type [Ir]@NU-1000, was accessed from the incorporation of the iridium organometallic fragment [Ir{κ3(P,Si,Si)PhP(o-C6H4CH2SiPr2)2}] into NU-1000. The new material incorporates less than 1 wt % of Ir(III) (molar ratio Ir to NU-1000, 1:11), but the heat of adsorption for SO2 is significantly enhanced with respect to that of NU-1000. Being a highly promising adsorbent for SO2 capture, [Ir]@NU-1000 combines exceptional SO2 uptake at room temperature and outstanding cyclability. Additionally, it is stable and can be regenerated after SO2 desorption at low temperature.
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