Porous electrodes for spectroelectrochemistry and x-ray structure analyses

Patent · Tue Apr 30 00:00:00 EDT 2019

OSTI ID:1568263

Kwon, Gihan; Emery, Jonathan D.; Kim, In Soo; Martinson, Alex B.; Tiede, David M.

An electrochemical cell that allows for in-situ structural characterization of amorphous thin film materials during the course of electrolysis using high-energy X-ray scattering (>50 keV). The compact and versatile cell employs a three-electrode configuration and minimizes X-ray scattering contributions from the cell, reference and counter electrodes, as well as the working electrode support. A large surface area working electrode has a physically robust support and is largely transparent to X-rays. This design, which utilizes a three-dimensional working electrode, also greatly improves the intensity and quality of the scattered signal compared to a two-dimensional working electrode. The in-situ cell can be used not only to investigate structural evolution during electrolysis using X-ray scattering (e.g. pair distribution function), but also to perform electrochemical potential-dependent structural analysis by extended X-ray absorption fine structure.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-06CH11357; SC0001059; W-31-109-ENG-38
• Assignee: UChicago Argonne, LLC (Chicago, IL)
• Patent Number(s): 10,273,593
• Application Number: 15/221,167
• OSTI ID: 1568263
• Resource Relation: Patent File Date: 07/27/2016
• Country of Publication: United States
• Language: English