Nanostructure of dense ionic fluids

This thesis explores the engineering of nanostructure in dense ionic fluids (DIFs); emerging solvents for electrochemical and biomass applications. Using neutron techniques, including small-angle neutron scattering and diffraction, we reveal how intermolecular forces drive self-assembly in DIFs. Four strategies to control nanostructure were identified: introducing molecular hydrogen bond donors, mixing salts, adding amphiphiles, and incorporating polymeric components. Our investigation relates molecular parameters such as ionic character, hydrogen bond ability, and solvophobicity to nanostructure, providing insights that guide the design of tailored DIFs with improved properties for safer electrolytes and greener solvents. This approach advances DIF development toward systematic molecular design.