abstract

• We explore an idealized theoretical model for ion transport within highly asymmetric ionic liquid mixtures. A primitive model-inspired system serves as a representative for asymmetric ionic materials (such as liquid crystalline salts) which quench to form disordered, partially arrested phases. Self-consistent generalized Langevin equation theory is applied to understand the connection between the size ratio of charge-matched salts and their average mobility. Within this model, we identify novel glassy states where one of the two charged species (without loss of generality, either the macro-cation or the micro-anion) is arrested, while the other retains liquid-like mobility. We discuss how this result is useful in the development of novel single-ion conducting phases in ionic liquid-based materials, for instance, conductors operating at low temperature or the technology associated with ionic liquid crystals.

authors

• Ramírez González Pedro Ezequiel

publication date

• 2025-01-01

funding provided via

• University of Notre Dame, ND; Consejo Nacional de Humanidades, Ciencias y Tecnologías, Conahcyt, (IxM-1631, IxM-7119, CF-2023-I-1013); National Science Foundation, NSF, (DMR-17519)  Grant

published in

• Physics of Fluids  Journal

keywords

• Arrested phasis; Crystalline salts; Generalized Langevin equation theories; Ion-transport; Ionic liquid mixtures; Ionic materials; Liquid crystalline; Primitive model; Size ratio; Theoretical modeling; Liquid crystals

Digital Object Identifier (DOI)

• 10.1063/5.0245688

PubMed ID

start page

end page

volume

• 37

issue

• 1