Correction to: Nature Communications https://doi.org/10.1038/s41467-025-58019-7, published online 19 March 2025

Since the version of the article initially published, in the “Performance in MEAs” section, the sentence “As a result, the performance of the MEA with HP-IrOxHy-BM anode catalyst surpasses those of state-of-the-art MEAs” has been amended to “As a result, the performance of the MEA with the HP-IrOxHy-BM anode catalyst surpasses many previous reports and is comparable to that reported by Bernt et al.40” and a new ref. 40 added (M. Bernt et al. Effect of the IrOx conductivity on the anode electrode/porous transport layer interfacial resistance in PEM water electrolyzers. J. Electrochem. Soc. 168 084513 (2021)). This correction has been made to the HTML and PDF versions of the article.