Dip-and-pull ambient pressure photoelectron spectroscopy as a spectroelectrochemistry tool for probing molecular redox processes

Summary, in English

Ambient pressure x-ray photoelectron spectroscopy (APXPS) can provide a compelling platform for studying an analyte's oxidation and reduction reactions in solutions. This paper presents proof-of-principle operando measurements of a model organometallic complex, iron hexacyanide, in an aqueous solution using the dip-and-pull technique. The data demonstrates that the electrochemically active liquid meniscuses on the working electrodes can undergo controlled redox reactions which were observed using APXPS. A detailed discussion of several critical experimental considerations is included as guidance for anyone undertaking comparable experiments.

• Author: Robert H. Temperton; Anurag Kawde; Axl Eriksson; Weijia Wang; Esko Kokkonen; Rosemary Jones; Sabrina Maria Gericke; Suyun Zhu; Wilson Quevedo; Robert Seidel; Joachim Schnadt; Andrey Shavorskiy; Petter Persson; Jens Uhlig
• Department/s: MAX IV Laboratory; LTH Profile Area: Photon Science and Technology; LTH Profile Area: Nanoscience and Semiconductor Technology; Chemical Physics; NanoLund: Centre for Nanoscience; LINXS - Institute of advanced Neutron and X-ray Science; Synchrotron Radiation Research; Department of Physics; Combustion Physics; Computational Chemistry
• Publishing year: 2022-12-28
• Language: English
• Publication/Series: Journal of Chemical Physics
• Volume: 157
• Issue: 24
• Links: http://dx.doi.org/10.1063/5.0130222
• Document type: Journal article
• Publisher: American Institute of Physics (AIP)
• Topic: Other Chemistry Topics; Condensed Matter Physics (including Material Physics, Nano Physics)
• Status: Published
• ISBN/ISSN/Other: ISSN: 0021-9606