Jump to main content
Jump to site search

Issue 36, 2017
Previous Article Next Article

Effect of countercation on the water stability of an anionic metal–organic framework

Author affiliations

Abstract

Methods for adjusting and potentially improving the water stability of metal–organic frameworks (MOFs) are important for many potential applications. Herein, we investigate how the identity of uncoordinated countercations housed within the channels of an anionic MOF affect its structure and porosity after exposure to liquid water and water vapour. bMOF-1, Zn8(ad)4(BPDC)6O·2 cations (ad = adeninate; BPDC = biphenyldicarboxylate), was used for this study and different alkylammonium countercations were incorporated into the framework via cation exchange. In general, it was determined that cations having larger alkyl chains resulted in a more water stable bMOF-1 material; conversely, more hydrophilic cations detrimentally affected bMOF-1 stability to water. Finally, bMOF-1 was loaded with mixtures of both hydrophilic and hydrophobic cations. It was found that these bMOF-1 samples, despite the presence of the hydrophilic cations, still maintained their structure and porosity after exposure to water vapour.

Graphical abstract: Effect of countercation on the water stability of an anionic metal–organic framework

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Jul 2017, accepted on 20 Aug 2017 and first published on 25 Aug 2017


Article type: Paper
DOI: 10.1039/C7CE01228D
Citation: CrystEngComm, 2017,19, 5417-5421
  •   Request permissions

    Effect of countercation on the water stability of an anionic metal–organic framework

    A. B. Spore and N. L. Rosi, CrystEngComm, 2017, 19, 5417
    DOI: 10.1039/C7CE01228D

Search articles by author

Spotlight

Advertisements