Using "tender" X-ray Ambient Pressure X-Ray Photoelectron Spectroscopy as A Direct Probe of Solid-Liquid Interface

292Citations
Citations of this article
308Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

We report a new method to probe the solid-liquid interface through the use of a thin liquid layer on a solid surface. An ambient pressure XPS (AP-XPS) endstation that is capable of detecting high kinetic energy photoelectrons (7 keV) at a pressure up to 110 Torr has been constructed and commissioned. Additionally, we have deployed a "dip &pull" method to create a stable nanometers-thick aqueous electrolyte on platinum working electrode surface. Combining the newly constructed AP-XPS system, "dip &pull" approach, with a "tender" X-ray synchrotron source (2 keV-7 keV), we are able to access the interface between liquid and solid dense phases with photoelectrons and directly probe important phenomena occurring at the narrow solid-liquid interface region in an electrochemical system. Using this approach, we have performed electrochemical oxidation of the Pt electrode at an oxygen evolution reaction (OER) potential. Under this potential, we observe the formation of both Pt 2+ and Pt 4+ interfacial species on the Pt working electrode in situ. We believe this thin-film approach and the use of "tender" AP-XPS highlighted in this study is an innovative new approach to probe this key solid-liquid interface region of electrochemistry.

References Powered by Scopus

Quantitative electron spectroscopy of surfaces: A standard data base for electron inelastic mean free paths in solids

5405Citations
N/AReaders
Get full text

Atomic subshell photoionization cross sections and asymmetry parameters: 1 ≤ Z ≤ 103

4659Citations
N/AReaders
Get full text

Reaction-driven restructuring of Rh-Pd and Pt-Pd core-shell nanoparticles

1143Citations
N/AReaders
Get full text

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Axnanda, S., Crumlin, E. J., Mao, B., Rani, S., Chang, R., Karlsson, P. G., … Liu, Z. (2015). Using “tender” X-ray Ambient Pressure X-Ray Photoelectron Spectroscopy as A Direct Probe of Solid-Liquid Interface. Scientific Reports, 5. https://doi.org/10.1038/srep09788

Readers over time

‘15‘16‘17‘18‘19‘20‘21‘22‘23‘24‘25015304560

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 126

56%

Researcher 76

34%

Professor / Associate Prof. 20

9%

Lecturer / Post doc 2

1%

Readers' Discipline

Tooltip

Chemistry 91

48%

Materials Science 45

24%

Physics and Astronomy 36

19%

Engineering 19

10%

Article Metrics

Tooltip
Social Media
Shares, Likes & Comments: 65

Save time finding and organizing research with Mendeley

Sign up for free
0