Automated monitoring of electrocatalyst corrosion as a function of electrochemical history and electrolyte formulation.

Autor: Jenewein KJ; Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Forschungszentrum Jülich, Cauerstrasse 1, 91058 Erlangen, Germany. k.jenewein@fz-juelich.de.; Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany.; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA. gregoire@caltech.edu., Kan K; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA. gregoire@caltech.edu.; Liquid Sunlight Alliance, California Institute of Technology, Pasadena, CA, USA., Guevarra D; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA. gregoire@caltech.edu.; Liquid Sunlight Alliance, California Institute of Technology, Pasadena, CA, USA., Jones RJR; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA. gregoire@caltech.edu.; Liquid Sunlight Alliance, California Institute of Technology, Pasadena, CA, USA., Lai Y; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA. gregoire@caltech.edu.; Liquid Sunlight Alliance, California Institute of Technology, Pasadena, CA, USA., Suram SK; Toyota Research Institute, Los Altos, CA, 94022, USA., Haber JA; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA. gregoire@caltech.edu.; Liquid Sunlight Alliance, California Institute of Technology, Pasadena, CA, USA., Cherevko S; Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Forschungszentrum Jülich, Cauerstrasse 1, 91058 Erlangen, Germany. k.jenewein@fz-juelich.de., Gregoire JM; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA. gregoire@caltech.edu.; Liquid Sunlight Alliance, California Institute of Technology, Pasadena, CA, USA.
Jazyk: angličtina
Zdroj: Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2024 Aug 29; Vol. 60 (71), pp. 9554-9557. Date of Electronic Publication: 2024 Aug 29.
DOI: 10.1039/d4cc02906b
Abstrakt: Automated platforms assessing the stability of electrocatalysts are key to accelerate the deployment of clean energy technologies. Here, we present a robust system that allows the study of corrosion behavior in conjunction with the electrochemical protocol and electrolyte composition over many individual electrodes. Oxygen reduction reaction on Pt is used as a proof-of-concept platform, where the influence of the potential window and phosphoric acid (PA) addition on Pt dissolution is probed. A total of 72 hours of automated operation was realized with actions including liquid management, cell cleaning, aliquoting, PA injection, and bubble detection and removal, demonstrating further advancements in automated stability testing for electrocatalysts.
Databáze: MEDLINE