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. 2020 Jul 16;11:3561. doi: 10.1038/s41467-020-17370-7

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© The Author(s) 2020

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. 8 — a i-V and i-power density curves (10 mV s⁻¹ forward scans, solid line H₂/O₂, dashed line H₂/Air (CO₂ free) at 1 L min⁻¹) of an AMFC with 8% PTFE in the CL and 20% PTFE in the GDL for both the anode and cathode; (b) voltage vs. time at a constant current density of 600 mA cm⁻² under H₂/Air (CO₂ free) flowed at 1 L min⁻¹. The cell was held at 65 °C with both the anode and cathode RH set at 100%. The anode and cathode RHs were slightly adjusted to remove recoverable performance losses during the stability tests. The anode and cathode loading were 0.70 mg_PtRu cm⁻² and 0.60 mg_Pt cm⁻², respectively. The membrane used was HDPE⁵. The data is presented without iR-correction.