title: Hollow metal-organic framework polyhedra synthesized by a CO2-ionic liquid interfacial templating route.
abstract: We proposed for the first time a CO2-ionic liquid (IL) interfacial templating route for the production of hollow MOF microparticles. By adding the gaseous CO2 into IL phase under stirring, a large number of CO2 bubbles are generated, which provide numerous CO2-IL interfaces, serving as the nucleation or agglomeration centers for the MOF nanocrystals. By this strategy, the hollow and mesoporous Zn-BTC (BTC: 1,3,5-benzenetricarboxylic) tetrahedroids were fabricated. The morphologies of the Zn-BTC polyhedra can be easily controlled by CO2 pressure. The as-synthesized Zn-BTC hollow microparticles have shown potential applications in gas separation and catalysis. Furthermore, the CO2-IL interface templating approach has been successfully applied to the fabrication of microsized Zn-BDC (BDC: 1,4-benzenedicarboxylic) hollow prisms.
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Li
authors.initials: L
authors.lastname: Peng
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. Electronic address: zhangjl@iccas.ac.cn.
authors.forename: Jianling
authors.initials: J
authors.lastname: Zhang
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Jianshen
authors.initials: J
authors.lastname: Li
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Buxing
authors.initials: B
authors.lastname: Han
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Xue
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Binbin
authors.initials: B
authors.lastname: Zhang
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Jinghua
authors.initials: J
authors.lastname: Shi
authors.affiliation: CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Guanying
authors.initials: G
authors.lastname: Yang
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D010795:Phthalic Acids / Q000737:chemistry; D014233:Tricarboxylic Acids / Q000737:chemistry; D015032:Zinc / Q000737:chemistry
chemical_list: D052578:Ionic Liquids; D010795:Phthalic Acids; D014233:Tricarboxylic Acids; D002245:Carbon Dioxide; D015032:Zinc; C069849:trimesic acid
keywords: Catalyst; Gas separation; Gas–ionic liquid interface; Hollow polyhedra; Metal–organic framework