High-resolution in situ electrochemical NMR with interdigitated electrodes
AssigneeGeorgetown University
InventorsYuYe J. Tong, Eric G. Sorte
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Abstract
A system for carrying out electrochemical nuclear magnetic resonance spectroscopy (EC-NMR) is disclosed, along with methods of manufacturing the EC-NMR system, and methods of using the EC-NMR system to monitor electrochemical reactions. The system comprises interdigitated electrodes arranged in a cylindrically symmetric manner. The system allows for nuclear magnetic resonance spectroscopy to be carried out on a sample during electrolysis with minimal effect to its sensitivity.
Claims17
A method of performing nuclear magnetic resonance spectroscopy during an electrochemical reaction comprising:
- supplying an interdigitated electrode acting as a working electrode;
- supplying an interdigitated electrode acting as a counter electrode;
- and
- supplying an NMR sample tube,
- wherein the interdigitated electrodes are positioned inside the NMR sample tube such that the electrodes are in an NMR detection region of the NMR sample tube, and wherein the interdigitated electrodes are cylindrically symmetric;
- and
- performing nuclear magnetic resonance spectroscopy in the NMR detection region that comprises applying a magnetic field having a skin depth, and wherein the working electrode and the counter electrode each have a thickness of 0.1 to 2.5% of the magnetic field skin depth.
A method of manufacturing an electrochemical nuclear magnetic resonance (EC-NMR) system comprising:
- (a) cutting a support;
- (b) applying a mask to the support;
- (c) depositing electrodes on the support;
- (d) removing the mask to reveal an interdigitated electrode pattern;
- and
- (e) rolling the support with the interdigitated electrode pattern into a cylinder for inserting into an NMR tube.
Dependencies are inferred from the claim text.