Fabrication of MOF Thin Films at Miscible Liquid-Liquid Interface by Spray Method

ACS Appl Mater Interfaces. 2018 Aug 8;10(31):25960-25966. doi: 10.1021/acsami.8b09812. Epub 2018 Jul 30.

Abstract

Metal-organic frameworks (MOFs) are an intriguing class of porous crystalline inorganic-organic hybrid materials. The fabrication of oriented, crystalline thin film of MOFs is expected to open novel avenues to traditional applications and to serve myriad advanced technologies. Here, a facile spray-assisted miscible liquid-liquid interface (MLLI) synthetic strategy is carried out and reported under mild condition that utilizes miscible interface for the rapid and controllable fabrication of large-area free-standing MOF thin films. The methodology can employ various metal nodes and organic ligands to yield various high quality lamellar/granulous MOF thin films at MLLI, which indicates the universality of the MLLI strategy.

Keywords: catalysis membrane reactor; metal−organic frameworks; miscible liquid−liquid interface synthesis; spray technology; thin films.