Structure and dynamics in ionic liquid based electrolytes
- Reference number
- ICA10-0074
- Start and end dates
- 120401-150331
- Amount granted
- 3 000 000 SEK
- Administrative organization
- Chalmers University of Technology
- Research area
- Materials Science and Technology
Summary
By applying to this grant I aim to consolidate my independency as a young researcher in the research area "structure and dynamics in novel ionic liquid-based electrolytes by advanced spectroscopic methods".By applying to this grant I aim to consolidate my independency as a young researcher in the research area "structure and dynamics in novel ionic liquid-based electrolytes by advanced spectroscopic methods". Even though ionic liquids have attracted considerable attention as potential materials for use as electrolytes, for real applications the entrapment into solid matrices is inevitable. One possible approach is the swelling of a polymer membrane like Nafion, whereas a much more elegant way is to nano-confine ionic liquids into 3D solid matrices grown from precursor silica particles. The latter are also known as ionogels. I aim to better understand these materials in order to further improve their functionality, using spectroscopic methods yet not so extensively used in the field. These include NMR, x-ray diffraction, neutron scattering and in situ micro-Raman. Issues of both fundamental and applied importance will be addressed, like the proton transport mechanism, the generality of nano-segregation, the effects of physical confinement, the molecular functionalization of precursor silica particles, and the development of in situ investigation methods. Since I have already a financial support to employ a PhD student from the Energy Area of Advance at Chalmers, the grant will mainly be used to purchase a micro-Raman spectrometer and recruit a postdoctoral fellow. This will enable me to strengthen my independency and give a unique profile to my growing research group.
Popular science description
Ionic liquids have attracted a considerable amount of interest for their peculiar set of properties that they provide. They are salts that are melt at room temperature, although they are only comprised of ions. In my research, I aim to develop solid-like electrolytes starting from liquid materials. I will do so by reacting precursor silica particles inside an ionic liquid and thus grow an extended SiO2 network. These materials, also known as ionogels, have the potential to be used in electrochemical devices such as fuel cells or li-ion batteries, but must be tailor made to suit the specific applications. The peculiarity of ionogels is that they look and fell like solids although they keep liquid-like dynamic properties. In order to better understand the structure and the dynamics in these innovative materials, I will make use of advanced characterization methods like NMR, x-ray diffraction, neutron scattering and Raman spectroscopy. I am also particularly interested in developing spectroscopic methods to investigate materials during operation, so called in situ characterization methods.