High temperature ionic conduction mediated by ionic liquid incorporated within the metal-organic framework UiO-67(Zr)

[email protected] (IL = ionic liquid; MOF = metal organic framework) as a new type hybrid ionic conductor has attracted research interest. Ionic liquids incorporated within MOFs not only promote the ionic conductivity of ILs, but also mediate the working temperature. In our report, 1-Ethyl-3-methylimidazolium Chloride (EMIMCl) was introduced into the pores of UiO-67(Zr) MOF by taking simple strategy basing on capillary action through specific grinding and diffusing in heating process. The working temperature of [email protected] is up to 200 °C. And it shows high ionic conductivity (1.67 × 10− 3 S·cm− 1 at 200 °C). The activation energy was estimated to be 0.37 eV. It is noteworthy that the hybrid material can be regarded as a fast-ion conductor based on the value of high conduction and low Ea. The high-temperature and humidity-independent ion conduction as well as low activation energy make this material potentially useful for electrochemical devices.