Abstract.
The degradation of electrocatalysts as a consequence of their dissolution in the operating conditions of fuel cells and electrolyzers remains one of the main challenges in electrochemical energy conversion. In order to investigate and predict the kinetics of dissolution of electrocatalysts in real conditions, the electrochemical on-line inductively coupled mass spectrometry (ICP-MS) technique was developed. This approach is employed in electrocatalysis research as a tool for enabling the detection of dissolved elements in the electrolyte going down to the parts-per-trillion (ppt) range and providing at the same time multielement analysis and a wide linear dynamic range of quantification. In this way, on-line ICP-MS has been successfully applied for fundamental studies of noble metal dissolution, and the previous works related to the particular case of platinum are revised in the present chapter.
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Funding is acknowledged by Deutsche Forschungsgemeinschaft (Grant no. 1763/5-1).
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Briega-Martos, V., Cherevko, S. (2023). On-Line ICP-MS in Electrocatalysis Research: Platinum Dissolution Studies. In: Proceedings of the 61st Conference of Metallurgists, COM 2022. COM 2022. Springer, Cham. https://doi.org/10.1007/978-3-031-17425-4_34
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