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Metal-organic framework glasses with permanent accessible porosity.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Longley, Louis 
Krajnc, Andraž 
Smales, Glen J 

Abstract

To date, only several microporous, and even fewer nanoporous, glasses have been produced, always via post synthesis acid treatment of phase separated dense materials, e.g. Vycor glass. In contrast, high internal surface areas are readily achieved in crystalline materials, such as metal-organic frameworks (MOFs). It has recently been discovered that a new family of melt quenched glasses can be produced from MOFs, though they have thus far lacked the accessible and intrinsic porosity of their crystalline precursors. Here, we report the first glasses that are permanently and reversibly porous toward incoming gases, without post-synthetic treatment. We characterize the structure of these glasses using a range of experimental techniques, and demonstrate pores in the range of 4 - 8 Å. The discovery of MOF glasses with permanent accessible porosity reveals a new category of porous glass materials that are elevated beyond conventional inorganic and organic porous glasses by their diversity and tunability.

Description

Keywords

0303 Macromolecular and Materials Chemistry, 0912 Materials Engineering

Journal Title

Nat Commun

Conference Name

Journal ISSN

2041-1723
2041-1723

Volume Title

9

Publisher

Springer Science and Business Media LLC
Sponsorship
Royal Society (UF150021)
EPSRC (1937211)