Correction to: Nature Catalysis https://doi.org/10.1038/s41929-020-0465-6, published online 15 June 2020.

In the version of this Article originally published, in the legend of Fig. 4d and Supplementary Fig. 8, the green dashed and blue dotted lines were labelled ‘Mn2O3’ and ‘MnO’, respectively; they should have been labelled ‘MnO’ and ‘Mn2O3’, respectively. This has been corrected in the online versions of this Article and in the Supplementary Information.