Titanium-based zeolitic imidazolate framework for chemical fixation of carbon dioxide

Abstract

A titanium-based zeolitic imidazolate framework (Ti-ZIF) with a high surface area and porosity has been synthesized and its application has been demonstrated in the synthesis of cyclic carbonates from carbon dioxide.

Self‐Assembly Reactions To Form Multinuclear Zirconium(III) and Titanium(III) Complexes with Imidazole Derivatives as Bridging Ligands

“…The reaction of the titanocene sources [Cp 2 Ti(η 2 -C 2 (SiMe 3 ) 2 )] 1, its Cp* derivative 3 [18,19] as well as the zirconocene analogues 2 and 4 [20] with different imidazole derivatives yielded novel molecular triangles (16)(17)(18)(19) and rectangles (10-15) (Scheme 4). Using imidazole 5, 4,5-dimethylimidazole 6, benzimidazole 7 and 5,6-dimethylbenzimidazole 8 with the metallocene precursors [Cp 2 Ti(η 2 -C 2 (SiMe 3 ) 2 )] 1 and [Cp 2 Zr(py)(η 2 -C 2 (SiMe 3 ) 2 )] 2 resulted in the formation of the molecular rectangles 10-15.…”

“…[16] Scheme 3 shows exemplary pyrazolate, imidazolate and triazolate and their coordination behavior. For instance, imidazolates (deprotonated imidazoles) are used as building blocks of metal-organic and zeolitic imidazolate frameworks (MOFs, ZIFs) and are, for titanium, categorized in the group of titanium-based zeolitic imidazolate framework (Ti-ZIF).…”

Hollow Zn−Co Based Zeolitic Imidazole Framework as a Robust Heterogeneous Catalyst for Enhanced CO2 Chemical Fixation

“…In spite of the advances regarding the fabrication of hollow MOF structures, the further investigation of their catalytic properties, especially in organic transformations is still in its infancy but of potentially high interest . As a subclass of MOFs, zeolitic imidazole frameworks (ZIFs) have been recently proposed as promising candidates for chemical fixation of CO 2 with epoxides due to the suitable Lewis sites in their framework and enhanced “CO 2 capture” capability associated with imidazole unites . Hence, it will be very interesting to construct such ZIFs with unique hollow structure and explore their possibilities for potential application in the chemical fixation of CO 2 process.…”

“…[41,43] As as ubclass of MOFs,z eolitic imidazole frameworks (ZIFs) have been recently proposed as promising candidates for chemical fixation of CO 2 with epoxides due to the suitable Lewis sites in their framework and enhanced "CO 2 capture" capability associated with imidazole unites. [53][54][55][56][57] Hence, it will be very interesting to constructs uch ZIFs with uniqueh ollow structure and explore their possibilities for potential application in the chemical fixation of CO 2 process. One can expect that the hollow structurec haracteristic of shortened channel length and more exposed active sites will be good for enhancing the catalytic activity.…”

Zn-Co@N-Doped Carbon Derived from ZIFs for High-Efficiency Synthesis of Ethyl Methyl Carbonate: The Formation of ZnO and the Interaction between Co and Zn

“…Recently, metal organic frameworks (MOFs) made up of metal ions and organic ligands have attracted widespread attention in different fields, such as gas adsorption and storage [18,19], molecular separation [20,21], catalysts [22,23] as well as drug delivery [24,25], due to their porous structures and high thermal stability [26][27][28]. Meanwhile, several groups applied MOF materials, in which metal ions acted as acid sites, to transesterification between DMC and DEC since the reaction was essentially an acid-base catalyzed process.…”