Results of an international round-robin exercise on electrochemical impedance spectroscopy

Autor: José María Sánchez-Amaya, Michele Curioni, Robert A. Cottis, Rik-Wouter Bosch, Radek Novotny, Jan Macák, Stefan Ritter, Wenzhong Zhang, Johan Öijerholm, Matthias Herbst, Bojan Zajec, François Huet, Andreas Heyn, Kieu Ngo, Timo Saario, H. Takenouti, Mirdash Bakalli
Přispěvatelé: Paul Scherrer Institute (PSI), Centre d'Etude de l'Energie Nucléaire (SCK-CEN), Laboratoire Interfaces et Systèmes Electrochimiques (LISE), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Materials Performance Centre, University of Manchester [Manchester], Sika Technology AG, Framatome GmbH, Otto-von-Guericke-Universität Magdeburg, University of Chemistry and Technology Prague (UCT Prague), European Commission - Joint Research Centre [Petten], Studvick Nuclear AB, VTT Technical Research Centre of Finland (VTT), Universidad de Cádiz (UCA), Slovenian National Building and Civil Engineering Institute (ZAG), Jacobs
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Corrosion Engineering, Science and Technology
Corrosion Engineering, Science and Technology, Maney Publishing, 2021, 56 (3), pp.254-268. ⟨10.1080/1478422X.2020.1850070⟩
Ritter, S, Bosch, R W, Huet, F, Ngo, K, Cottis, R A, Bakalli, M, Curioni, M, Herbst, M, Heyn, A, Macak, J, Novotny, R, Öijerholm, J, Saario, T, Sanchez-Amaya, J M, Takenouti, H, Zajec, B & Zhang, W 2021, ' Results of an international round-robin exercise on electrochemical impedance spectroscopy ', Corrosion Engineering Science and Technology, vol. 56, no. 3, pp. 254-268 . https://doi.org/10.1080/1478422X.2020.1850070
ISSN: 1743-2782
1478-422X
DOI: 10.1080/1478422X.2020.1850070⟩
Popis: International audience; To check the reproducibility of electrochemical impedance spectroscopy (EIS) measurements, 19 laboratories have performed round-robin (RR) testing on EIS using various instruments and three different systems: a dummy cell, and two electrochemical systems of practical interest in the nuclear corrosion domain. The general conclusion drawn from the tests performed with the dummy cell is that the actual commercially available instruments for EIS measurements are suitable to produce good quality data. Differences in the EIS diagrams for the tested electrochemical systems were observed and discussed. This RR exercise, involving for the first time a large number of laboratories, shows that intrinsic scatter (large or small) is present in the impedance data and that reproducibility should be readily checked. While EIS is an excellent technique for investigating the kinetics of electrochemical systems, great care has to be taken on planning and conducting the experiments. Recommendations are given in this paper to help obtaining reliable EIS results.
Databáze: OpenAIRE