title: Constructing free standing metal organic framework MIL-53 membrane based on anodized aluminum oxide precursor.
abstract: Metal organic framework (MOF) materials have attracted great attention due to their well-ordered and controllable pores possessing of prominent potentials for gas molecule sorption and separation performances. Organizing the MOF crystals to a continuous membrane with a certain scale will better exhibit their prominent potentials. Reports in recent years concentrate on well grown MOF membranes on specific substrates. Free standing MOF membranes could have more important applications since they are independent from the substrates. However, the method to prepare such a membrane has been a great challenge because good mechanical properties and stabilities are highly required. Here, we demonstrate a novel and facile technique for preparing the free standing membrane with a size as large as centimeter scale. The substrate we use proved itself not only a good skeleton but also an excellent precursor to fulfill the reaction. This kind of membrane owns a strong mechanical strength, based on the fact that it is much thinner than the composite membranes grown on substrates and it could exhibit good property of gas separation.
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China.
authors.forename: Yunlu
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China.
authors.forename: Qiuming
authors.initials: Q
authors.lastname: Gao
authors.affiliation: State Key Library for Advanced Metal Materials, University of Science and Technology of Beijing, Beijing 100083, P. R. China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Lin
authors.affiliation: Beijing Centre for Physical & Chemical Analysis, Beijing 100089, P. R. China.
authors.forename: Tao
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China.
authors.forename: Jiandong
authors.initials: J
authors.lastname: Xu
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China.
authors.forename: Yanli
authors.initials: Y
authors.lastname: Tan
authors.affiliation: Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China.
authors.forename: Weiqian
authors.initials: W
authors.lastname: Tian
authors.affiliation: 1] Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China [2] Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang