| Autor: |
Bogdan Dereka, Nicholas H. C. Lewis, Yong Zhang, Nathan T. Hahn, Jonathan H. Keim, Scott A. Snyder, Edward J. Maginn, Andrei Tokmakoff |
| Přispěvatelé: |
University of Zurich, Tokmakoff, Andrei |
| Rok vydání: |
2022 |
| Předmět: |
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| DOI: |
10.5167/uzh-227562 |
| Popis: |
Understanding the mechanisms of charge transport in batteries is important for the rational design of new electrolyte formulations. Persistent questions about ion transport mechanisms in battery electrolytes are often framed in terms of vehicular diffusion by persistent ion-solvent complexes versus structural diffusion through the breaking and reformation of ion-solvent contacts, i.e., solvent exchange events. Ultrafast two-dimensional (2D) IR spectroscopy can probe exchange processes directly via the evolution of the cross-peaks on picosecond time scales. However, vibrational energy transfer in the absence of solvent exchange gives rise to the same spectral signatures, hiding the desired processes. We employ 2D IR on solvent resonances of a mixture of acetonitrile isotopologues to differentiate chemical exchange and energy-transfer dynamics in a comprehensive series of Li |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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