부산대학교 도서관

As a new type of composite ionic conductor, the combination of ionic liquids (ILs) and metal organicframework (MOF) shows a good application prospect. In this study, two ionic liquids, 1,3-dimethylimidazolium tetrafluoroborate ([Dmim][BF4]) and 1-Allyl-3-methylimidazolium dicyanamide([Amim][N(CN)2]) were successfully combined with MIL-101(Cr). The influence of the amount of ionicliquid and temperature on the electrical conductivity of composite IL@MIL-101(Cr) was explored. Theoptimal electrical conductivity reached 3.73 10-3Scm1 ([Dmim][BF4]) and 2.69 10-3Scm1([Amim][N(CN)2]) respectively when exposed to air at 100 C. It is worth noting that the ionic conductivityof all composites exhibits linear Arrhenius behavior. Since the activation energies of composites areclosely related to the type of ionic liquid and MOF types, these two composites exhibit different activationenergies. The reason for the difference in activation energies is analyzed with the aid of quantumchemical calculations.