Dec 1, 2019 · Zeolitic imidazolate framework ZIF-7 (Zn (bim) 2) is a prototypical one among different ZIFs, and it is formed by connecting Zn actions with benzimidazole (bim) anions. Single crystal X-Ray diffraction studies shows it has a sodalite (SOD) topology with a …

May 1, 2018 · ZIF-8, ZIF-L, ZIF-67 and ZIF-7 were successfully synthesized from fresh and recycled synthesis solutions with high purity and yield. The adjustment of pH and the metal ion to organic linker molar ratio of the mother liquor were crucial for the synthesis of next generation of the ZIF crystals through the recycling procedure.

Feb 17, 2014 · ZIF-7 (Zn(PhIm) 2, PhIm = benzimidazolate) was one of the earliest-reported ZIFs with a prototypical structure related to that of sodalite (SOD topology). In 2011, Aguado et al. compared ZIF-7’s X-ray diffraction patterns and CO 2 sorption isotherms.

May 15, 2010 · ZIF-7 is formed by bridging benzimidazolate anions and zinc cations resulting in a sodalite (SOD) topology with a pore size of about 0.3 nm. The ZIF-7 membrane exhibited promising H 2 separation abilities.

Oct 31, 2024 · ZIF-7, as a robust and promising adsorbent for selective removal of ethane from ethylene, was studied by applying targeted pre- and postsynthetic functionalization and hybridization strategies as to evaluate the effect on the intrinsic gate opening mechanism and optimize performance.

Mar 1, 2019 · Here, we demonstrate that the CO 2 -adsorption-stimulated structural change of a flexible MOF, ZIF-7, is induced by CO 2 migration in its non-uniform porous structure rather than by the...

Nov 29, 2020 · We report here fast (15 min) microwave-assisted solvothermal synthesis of zeolitic imidazolate framework material (ZIF-7). We have optimized solvent composition to achieve high porosity and hydrogen capacity and narrow particle size distribution.

Jun 21, 2017 · The developed novel ZIF-7 structure with amino-function and the resulting nanocomposite membranes are very attractive for applications like natural-gas sweetening or biogas purification.

Mar 3, 2014 · In this paper, we present a study of the phase transitions in ZIF-7 as a function of guest occupancy and temperature. Our results demonstrate the importance of guest molecules in controlling structural transformations in ZIF-7 (Scheme 1 ).

Herein, the framework flexibility of ZIF-7, a typical MOF famous for its phase transition between wide-pore (ZIF-7-I) and narrow-pore (ZIF-7-II) forms on desolvation, was successfully hindered by embedding MOF nanocrystals in the rigid polymer matrix.