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. 2021 Apr 13;12:2231. doi: 10.1038/s41467-021-22296-9

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — a Applied current step and b, c resulting dissolution of b a baseline measurement at standard conditions (10 µg_Ir cm⁻² catalyst loading, 200 µl min⁻¹ flow rate, fresh electrolyte, 33 wt% Nafion in the catalyst layer and 0.1 M H₂SO₄ (pH = 1)) and c with a variation of electrolyte pH. The integration area for the calculation of S-numbers is highlighted by vertical dashed lines. Source data are provided in the source data file.