Carbonate-Based Zeolitic Imidazolate Framework for Highly Selective CO

DOI: 10.1021/ic5027174
PMID: 25650775

Authors: Sajani A. Basnayake (University of Texas at Dallas) , Jie Su (Stockholm University) , Xiadong Zou (Stockholm University) , Kenneth J. Balkus (University of Texas at Dallas)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Inorganic Chemistry , VOL 54 , PAGES 1816 - 1821

State: Published (Approved)
Published: February 2015

Abstract: In this study, we report the formation of a new crystal structure, ZIF-CO3-1, which results from the reaction of Zn2+, 2-methylimidazole, and carbonate. ZIF-CO3-1 can be synthesized solvothermally in N,N-dimethylformamide (DMF)/water (H2O) or by utilizing of CO2 gas at various temperatures in DMF/H2O or H2O. This reaction selectively consumes CO2 because CO2 is incorporated in the ZIF as carbonate. CO2 can be quantitatively released by acidifying the ZIF. Powder X-ray diffraction, single-crystal X-ray diffraction, FTIR spectroscopy, scanning electron microscopy, elemental analysis, and thermogravimetric analysis were used to characterize the ZIF structure. ZIF-CO3-1 (chemical formula C9H(10)N4O(3)Zn(2)), crystallizes in the orthorhombic crystal system with noncentrosymmetric space group Pba2.

Subject Areas: Chemistry


Instruments: I19-Small Molecule Single Crystal Diffraction