MID INFRARED SPECTROMICROSCOPY (MID-IR)

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TIME-RESOLVED SPECTROELECTROCHEMISTRY WITH IRSWEEP

Dual comb IR spectroscopy for time resolved spectroscopy

Oct. 21, 2020

A dual infrared frequency comb spectrometer with heterodyne detection has been used to perform time-resolved electrochemical attenuated total reflectance surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS). In collaboration with the Canadian Light Source and IRsweep, the desorption of a monolayer of a pyridine derivative with 10 μs time resolution and a detection limit of 5% of a monolayer was demonstrated. The applications of the method are potentially immense for the study of short lived adsorbed species during electrocatalysis. You can access the pre-print (https://harvest.usask.ca/handle/10388/12909) in the UofS open access repository.

Analytical Chemistry.(https://pubs.acs.org/doi/10.1021/acs.analchem.0c00260).