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Probing Ionic Liquid/Electrode Interfaces by Hyperspectral Imaging
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DOI：10.1149/07515.0545ecst.png)
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Abstract
En 中文
Understanding the interface between ionic liquids (ILs) and electroactive surfaces is of great importance for a wide range of applications including batteries, capacitors, and sensors. In this work, we discuss analyses and characterization of the structure and dynamics of the electric double layer (EDL) by surface-enhanced infrared absorption spectroscopy (SEIRA). In particular, we are interested in developing a high throughput imaging version of the SEIRA consisting of a quantum cascade laser coupled to a hyperspectral imaging camera detector. Rather than generating single spectra at a time for single experiments, hyperspectral imaging techniques can be utilized to both increase signal to noise for capturing rapid dynamics while multiplexing experiments simultaneously. We are particularly interested in IL systems which exhibit hysteresis at interfaces. That is, systems for which interfacial structure is dependent on past events. Here, we discuss several cases studies and some preliminary findings.
Keywords:
LIQUID INTERFACE
ELECTRODE
SURFACE
HYSTERESIS
LAYER
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