Achieving Amphibious Superprotonic Conductivity in a CuI Metal-Organic Framework by Strategic Pyrazinium Salt Impregnation. Academic Article uri icon


  • Treatment of a pyrazine (pz)-impregnated CuI metal-organic framework (MOF) ([1pz]) with HCl vapor renders an interstitial pyrazinium chloride salt-hybridized MOF ([1pz6HCl]) that exhibits proton conductivity over 10-2 Scm-1 both in anhydrous and under humid conditions. Framework [1pz6HCl] features the highest anhydrous proton conductivity among the lesser-known examples of MOF-based materials exhibiting proton conductivity under both anhydrous and humid conditions. Moreover, [1pz] and corresponding pyrazinium sulfate- and pyrazinium phosphate-hybridized MOFs also exhibit superprotonic conductivity over 10-2 Scm-1 under humid conditions. The impregnated pyrazinium ions play a crucial role in protonic conductivity, which occurs through a Grotthuss mechanism.

published proceedings

  • Chemistry

altmetric score

  • 0.25

author list (cited authors)

  • Khatua, S., Bar, A. K., Sheikh, J. A., Clearfield, A., & Konar, S.

citation count

  • 21

complete list of authors

  • Khatua, Sajal||Bar, Arun Kumar||Sheikh, Javeed Ahmad||Clearfield, Abraham||Konar, Sanjit

publication date

  • January 2018