Premium
Large‐Area Crystalline Zeolitic Imidazolate Framework Thin Films
Author(s) -
Chen Zhi,
Wang Rui,
Ma Tao,
Wang JinLong,
Duan Yu,
Dai ZhiZhan,
Xu Jie,
Wang HuiJuan,
Yuan Jiayin,
Jiang HaiLong,
Yin YueWei,
Li XiaoGuang,
Gao MinRui,
Yu ShuHong
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202104366
Subject(s) - materials science , fabrication , amorphous solid , zeolitic imidazolate framework , imidazolate , thin film , nanotechnology , chemical engineering , nanoparticle , tin oxide , coating , colloid , polycarbonate , oxide , metal organic framework , composite material , metallurgy , chemistry , organic chemistry , medicine , alternative medicine , pathology , adsorption , engineering
Abstract We report that continuous MOF films with highly controlled thickness (from 44 to 5100 nm) can be deposited over length scales greater than 80 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, SiO 2 , Al 2 O 3 , 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.