High intrinsic proton conduction in cerium(IV) metal-organic framework constructed by bromine-grafted terephthalic acid

Two histidine-templated metal phosphate-oxalates: solvent-free synthesis, luminescence, and proton-conducting properties

“…It is believed that the increased temperature is helpful for the dissociation of protons from the histidine cations and accelerates proton transport within the layered structure. 13 For compound 2 , its chainlike structure is unstable under high humidity condition. Therefore, its proton conductivities were measure under 75% relative humidity.…”