Large-Area Crystalline Zeolitic Imidazolate Framework Thin Films.
Angew Chem Int Ed Engl
; 60(25): 14124-14130, 2021 Jun 14.
Article
in En
| MEDLINE
| ID: mdl-33856098
ABSTRACT
We report that continuous MOF films with highly controlled thickness (from 44 to 5100â
nm) can be deposited over length scales greater than 80â
centimeters by a facile, fast, and cost-effective spray-coating method. Such success relies on our discovery of unprecedented perfectly dispersed colloidal solutions consisting of amorphous MOF nanoparticles, which we adopted as precursors that readily converted to the crystalline films upon low-temperature in situ heating. The colloidal solutions allow for the fabrication of compact and uniform MOF films on a great deal of substrates such as fluorine-doped tin oxide, glass, SiO2 , Al2 O3 , Si, Cu, and even flexible polycarbonate, widening their technological applications where substrates are essential. Despite the present work focuses on the fabrication of uniform cobalt-(2-methylimidazole)2 and zinc-(2-methylimidazole)2 films, our findings mark a great possibility in producing other high-quality MOF thin films on a large scale.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Angew Chem Int Ed Engl
Year:
2021
Document type:
Article