Stern layers on RuO2 (100) and (110) in electrolyte: Surface X-ray scattering studies
Name
2002.11521.pdf
Description
Submitted version
Size
1.06 MB
Format
Unknown
Checksum (MD5)
0af8b4c7c3787bb810833513c276bb8f
Author(s)
Kawaguchi, Tomoya
Rao, Reshma R.
Lunger, Jaclyn R.
Liu, Yihua
Walko, Donald
Karapetrova, Evguenia A.
Komanicky, Vladimir
Shao-Horn, Yang
You, Hoydoo
Date Issued
October 2020
Journal
Journal of Electroanalytical Chemistry
Publisher
Elsevier BV
Version
Original manuscript
Abstract
© 2020 Elsevier B.V. Electrochemical Stern layers are observed on the surfaces of RuO2 single crystals in 0.1 M CsF electrolyte. The Stern layers formed at the interfaces of RuO2 (110) and (100) are compared to the previously reported Stern layer on Pt(111) [Liu et al., J. Phys. Chem. Lett., 9 (2018) 1265]. While the Cs+ density profiles at the potentials close to hydrogen evolution reactions are similar, the hydration layers intervening the surface and the Cs+ layer are significantly denser on RuO2 surfaces than that on Pt(111) surface, reflecting the oxygen termination of RuO2 surfaces. The overall similarities between Stern layers on ruthenium surfaces and platinum surface suggest the universal presence of Stern layers in all well-defined solid-electrolyte interfaces.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.jelechem.2020.114228
