Year: 2024
Type: article
Abstract: The combination of continuous wave electron paramagnetic resonance (cw-EPR) with electrochemistry is highly attractive as it allows a clean in-situ generation and the subsequent spectroscopic characterisation of radical ions, which are important intermediates in many photocatalytic cycles as well as light-induced processes occurring in biological systems or optoelectronic devices. Although commercial setups for spectroelectrochemical EPR are available, they are often expensive and tailored to a particular spectroscopic setup. Here we present a design for a low-cost electrochemical EPR cell that can be used in combination with any commercial cw-EPR instrumentation. The cell design is compared to existing setups and the performance of the cell is evaluated by comparison of EPR spectra obtained by chemical and electrochemical oxidation of a graphene fragment.
Source: Chemistry - A European Journal
Authors: Dominic K. F. Bruyers, Sabine Richert
Institution: University of Freiburg
Language: English
Subfield: Biophysics
Domain: Life Sciences
Open Access status: hybrid
Estimated APC paid: $4,640
OpenAlex ID: W4402146108