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Metal-organic framework glasses with permanent accessible porosity

DOI: 10.1038/s41467-018-07532-z DOI Help

Authors: Chao Zhou (University of Cambridge; Aalborg University) , Louis Longley (University of Cambridge) , Andraž Krajnc (National Institute of Chemistry, Slovenia) , Glen J. Smales (University College London; Diamond Light Source) , Ang Qiao (Wuhan University of Technology) , Ilknur Erucar (Ozyegin University) , Cara M. Doherty (Future Industries, Commonwealth Scientific and Industrial Research Organisation) , Aaron W. Thornton (Future Industries, Commonwealth Scientific and Industrial Research Organisation) , Anita J. Hill (Future Industries, Commonwealth Scientific and Industrial Research Organisation) , Christopher W. Ashling (University of Cambridge) , Omid T. Qazvini (Massey University) , Seok J. Lee (Massey University) , Philip A. Chater (Diamond Light Source) , Nicholas J. Terrill (Diamond Light Source) , Andrew J. Smith (Diamond Light Source) , Yuanzheng Yue (Aalborg University; Wuhan University of Technology; Qilu University of Technology) , Gregor Mali (National Institute of Chemistry, Slovenia) , David A. Keen (ISIS Facility) , Shane G. Telfer (Massey University) , Thomas D. Bennett (University of Cambridge)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Nature Communications , VOL 9

State: Published (Approved)
Published: November 2018
Diamond Proposal Number(s): 18236

Open Access Open Access

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.

Subject Areas: Chemistry, Materials


Instruments: I15-1-X-ray Pair Distribution Function (XPDF) , I22-Small angle scattering & Diffraction

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s41467-018-07532-z.pdf