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  Electronic Circuit Simulations as a Tool to Understand Distorted Signals in Single-Entity Electrochemistry

Kanokkanchana, K., & Tschulik, K. (2022). Electronic Circuit Simulations as a Tool to Understand Distorted Signals in Single-Entity Electrochemistry. The Journal of Physical Chemistry Letters, 13(43), 10120-10125. doi:10.1021/acs.jpclett.2c02720.

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acs.jpclett.2c02720.pdf (Verlagsversion), 3MB
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2022
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The Authors. Published by American Chemical Society.

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 Urheber:
Kanokkanchana, Kannasoot1, Autor
Tschulik, Kristina2, 3, Autor           
Affiliations:
1Chair of Analytical Chemistry II, Faculty of Chemistry and Biochemistry, ZEMOS 1.45, Ruhr University Bochum, Universitätsstraße 150, D-44780Bochum, Germany, ou_persistent22              
2Ruhr University Bochum, Faculty for Chemistry and Biochemistry, Analytical Chemistry II, Bochum, Germany, ou_persistent22              
3Electrochemistry and Nanoscale Materials, Max Planck Fellow Group, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_3429551              

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 Zusammenfassung: Electrochemical analysis relies on precise measurement of electrical signals, yet the distortions caused by potentiostat circuitry and filtering are rarely addressed. Elucidation of these effects is essential for gaining insights behind sensitive low-current and short-duration electrochemical signals, e.g., in single-entity electrochemistry. We present a simulation approach utilizing the Electrical Simulation Program with Integrated Circuit Emphasis (SPICE), which is extensively used in electronic circuit simulations. As a proof-of-concept, we develop a universal electrical circuit model for single nanoparticle impact experiments, incorporating potentiostat and electronic filter circuitry. Considering these alterations, the experimentally observed transients of silver nanoparticle oxidation were consistently shorter and differently shaped than those predicted by established models. This reveals the existence of additional processes, e.g., migration, partial or asymmetric oxidation. These results highlight the SPICE approach’s ability to provide valuable insights into processes occurring during single-entity electrochemistry, which can be applied to various electrochemical experiments, where signal distortions are inevitable.

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Sprache(n): eng - English
 Datum: 2022-11
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1021/acs.jpclett.2c02720
 Art des Abschluß: -

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Titel: The Journal of Physical Chemistry Letters
  Kurztitel : J. Phys. Chem. Lett.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Washington, DC : American Chemical Society
Seiten: 6 Band / Heft: 13 (43) Artikelnummer: - Start- / Endseite: 10120 - 10125 Identifikator: ISSN: 1948-7185
CoNE: https://pure.mpg.de/cone/journals/resource/1948-7185