EXPLORING ANOMALOUS DYNAMICS IN ROOM TEMPERATURE IONIC LIQUIDS
Abstract
Understanding and predicting chemical dynamics, including solvent-solute interactions, adsorption processes, and transport processes, requires the ability to probe these events directly. Moreover, the power of prediction is improved with the ability to directly visualize chemistry. In this project chemical interactions of ionic liquids (ILs) will be mapped and unprecedented quantitative details of dynamic behaviors in ILs will be produced. Work will be performed on IL microstructures to determine how IL dynamics propagate from an interface and into a bulk environment. The project is also structured to explore how IL dynamics differ in the presence of an applied bias potential. A common question that will be explored in this work is what is the role of glassy dynamics in these IL systems? The PI will leverage their expertise in microfluidic device fabrication and in nonlinear optical spectroscopy and imaging techniques to produce quantitative details of IL dynamics exhibited at interfaces and into the bulk environment. Patterned microstructures will be used to explore the role templating by a molecular interface plays in the dynamics observed in ILs. Experiments will be performed to determine how the glass transition temperature influences the dynamical behaviors of the IL systems. Finally, electrodes will be integrated into the microfluidic device architectures to determine the how the presence of an external bias potential influences the IL dynamics as compared to the dynamics observed under the initial ambient conditions. The interfacial behaviors will be observed independently by using vibrational sum frequency generation spectroscopy and this behavior will be linked to bulk dynamic behaviors by spatially resolving the dynamics using 2D IR microscopy. The wholistic approach used in this project will increase knowledge related to IL behaviors crucial for their application as lubricants and electrolyte materials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2021
- Source ID
- FA95502010401
Entities
People
- Amber T Krummel
Organizations
- Air Force Office of Scientific Research
- Colorado State University
- United States Air Force