title: Direct Fabrication of Free-Standing MOF Superstructures with Desired Shapes by Micro-Confined Interfacial Synthesis.
abstract: Recently, metal-organic frameworks (MOFs) with multifunctional pore chemistry have been intensively investigated for positioning the desired morphology at specific locations onto substrates for manufacturing devices. Herein, we develop a micro-confined interfacial synthesis (MIS) approach for fabrication of a variety of free-standing MOF superstructures with desired shapes. This approach for engineering MOFs provides three key features: 1) in situ synthesis of various free-standing MOF superstructures with controlled compositions, shape, and thickness using a mold membrane; 2) adding magnetic functionality into MOF superstructures by loading with Fe3 O4 nanoparticles; 3) transferring the synthesized MOF superstructural array on to flat or curved surface of various substrates. The MIS route with versatile potential opens the door for a number of new perspectives in various applications.
authors.affiliation: National Centre of Applied Microfluidic chemistry, Department of Chemical Engineering, POSTECH, Pohang University of Science and Technology), Pohang, 790-784, Republic of Korea.
authors.forename: Jin-Oh
authors.initials: JO
authors.lastname: Kim
authors.affiliation: National Centre of Applied Microfluidic chemistry, Department of Chemical Engineering, POSTECH, Pohang University of Science and Technology), Pohang, 790-784, Republic of Korea.
authors.forename: Kyoung-Ik
authors.initials: KI
authors.lastname: Min
authors.affiliation: Department of Mechanical Engineering, POSTECH, Pohang University of Science and Technology), Pohang, 790-784, Republic of Korea.
authors.forename: Hyunwoo
authors.initials: H
authors.lastname: Noh
authors.affiliation: National Centre of Applied Microfluidic chemistry, Department of Chemical Engineering, POSTECH, Pohang University of Science and Technology), Pohang, 790-784, Republic of Korea.
authors.forename: Dong-Hwi
authors.initials: DH
authors.lastname: Kim
authors.affiliation: Polymeric Nanomaterials Laboratory, Department of Polymer Science & Engineering, School of Applied Chemical Engineering, Kyungpook National University (KNU), Daegu, 41566, Republic of Korea.
authors.forename: Soo-Young
authors.initials: SY
authors.lastname: Park
authors.affiliation: National Centre of Applied Microfluidic chemistry, Department of Chemical Engineering, POSTECH, Pohang University of Science and Technology), Pohang, 790-784, Republic of Korea. dpkim@postech.ac.kr.
authors.forename: Dong-Pyo
authors.initials: DP
authors.lastname: Kim
keywords: free-standing MOFs; interfacial synthesis; lanthanides; metal-organic frameworks; transfer