Insights into inorganic buffer layer-assisted in situ fabrication of MOF films with controlled microstructures. Issue 43 (23rd October 2018)

• Record Type: Journal Article
• Authors: Liu, Yi; Matsuda, Ryotaro; Kusaka, Shinpei; Hori, Akihiro; Ma, Yunsheng; Kitagawa, Susumu
• Is Part Of: CrystEngComm. Volume 20:Issue 43(2018)
• Page Start: 6995
• Page End: 7000
• Publication Date: 2018-10-23
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c8ce01681j
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : ZIF-7 films with diverse microstructures were in situ fabricated on Co–Al/Mg–Al HTlc-functionalized substrates, demonstrating that metal ions residing in the inorganic buffer layers did not have to be consistent with those in the MOF framework. Abstract : In this study, it was demonstrated that the introduction of Co–Al/Mg–Al hydrotalcite-like compound buffer layers on porous α-Al2 O3 substrates enabled effective manipulation of the microstructure of ZIF-7 films so that metal ions located in the inorganic buffer layers were not necessarily identical with those residing in the MOF crystals. Moreover, zinc sources were found to exert a significant influence on the final microstructure of the prepared ZIF-7 films. In addition to ZIF-7, well-intergrown ZIF-8 and HKUST-1 films could also be in situ grown on diverse HTlc buffer layer-modified α-Al2 O3 substrates, which convincingly demonstrated the generality of this strategy for the facile preparation of qualified MOF films/membranes.