University Library
  • Login
A gateway to Melbourne's research publications
Minerva Access is the University's Institutional Repository. It aims to collect, preserve, and showcase the intellectual output of staff and students of the University of Melbourne for a global audience.
View Item 
  • Minerva Access
  • Engineering and Information Technology
  • Mechanical Engineering
  • Mechanical Engineering - Research Publications
  • View Item
  • Minerva Access
  • Engineering and Information Technology
  • Mechanical Engineering
  • Mechanical Engineering - Research Publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

    Ultrafast selective transport of alkali metal ions in metal organic frameworks with subnanometer pores

    Thumbnail
    Download
    Published version (935.0Kb)

    Citations
    Scopus
    Web of Science
    Altmetric
    97
    92
    Author
    Zhang, H; Hou, J; Hu, Y; Wang, P; Ou, R; Jiang, L; Liu, JZ; Freeman, BD; Hill, AJ; Wang, H
    Date
    2018-02-01
    Source Title
    Science Advances
    Publisher
    AMER ASSOC ADVANCEMENT SCIENCE
    University of Melbourne Author/s
    Liu, Zhe
    Affiliation
    Mechanical Engineering
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Zhang, H., Hou, J., Hu, Y., Wang, P., Ou, R., Jiang, L., Liu, J. Z., Freeman, B. D., Hill, A. J. & Wang, H. (2018). Ultrafast selective transport of alkali metal ions in metal organic frameworks with subnanometer pores. SCIENCE ADVANCES, 4 (2), https://doi.org/10.1126/sciadv.aaq0066.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/256060
    DOI
    10.1126/sciadv.aaq0066
    Abstract
    Porous membranes with ultrafast ion permeation and high ion selectivity are highly desirable for efficient mineral separation, water purification, and energy conversion, but it is still a huge challenge to efficiently separate monatomic ions of the same valence and similar sizes using synthetic membranes. We report metal organic framework (MOF) membranes, including ZIF-8 and UiO-66 membranes with uniform subnanometer pores consisting of angstrom-sized windows and nanometer-sized cavities for ultrafast selective transport of alkali metal ions. The angstrom-sized windows acted as ion selectivity filters for selection of alkali metal ions, whereas the nanometer-sized cavities functioned as ion conductive pores for ultrafast ion transport. The ZIF-8 and UiO-66 membranes showed a LiCl/RbCl selectivity of ~4.6 and ~1.8, respectively, which are much greater than the LiCl/RbCl selectivity of 0.6 to 0.8 measured in traditional porous membranes. Molecular dynamics simulations suggested that ultrafast and selective ion transport in ZIF-8 was associated with partial dehydration effects. This study reveals ultrafast and selective transport of monovalent ions in subnanometer MOF pores and opens up a new avenue to develop unique MOF platforms for efficient ion separations in the future.

    Export Reference in RIS Format     

    Endnote

    • Click on "Export Reference in RIS Format" and choose "open with... Endnote".

    Refworks

    • Click on "Export Reference in RIS Format". Login to Refworks, go to References => Import References


    Collections
    • Minerva Elements Records [53039]
    • Mechanical Engineering - Research Publications [388]
    Minerva AccessDepositing Your Work (for University of Melbourne Staff and Students)NewsFAQs

    BrowseCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects
    My AccountLoginRegister
    StatisticsMost Popular ItemsStatistics by CountryMost Popular Authors