#7524. Effects of mechanical grinding on the phase behavior and anhydrous proton conductivity of imidazolium hydrogen succinate

October 2026publication date
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Journal’s subject area:
Engineering (all);
Chemical Engineering (all);
Physics and Astronomy (all);
Materials Science (all);
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Abstract:
Anhydrous organic proton conductors have attracted considerable attention as potential candidates for next-generation solid electrolytes in fuel cells. For further material development, a clear understanding of the conduction mechanism is essential, which can be accessed using crystalline materials as model systems. Recently, it has been reported that single-crystalline imidazolium hydrogen succinate (Im-Suc) exhibits a structural transition with the orientational disordering of imidazolium, which promotes proton conduction. In this study, we investigated the effects of mechanical grinding on the phase behavior and anhydrous proton conductivity of Im-Suc by comparing single-crystalline and mechanically crushed powder samples to understand the connection between ideal single crystals and highly disordered polymer systems.
Keywords:
Anhydrous proton conductor; Imidazolium hydrogen succinate; Mechanical grinding; Molecular dynamics; Phase behavior

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