Correction to: Nature Communications https://www.nature.com/articles/s41467-019-10342-6, published online 24 May 2019.

The original version of this Article contained errors in Fig. 1. The titles at the top of each panel a, b, c were incorrectly given as ‘CO2+/Au → CO2+ A’, ‘CO2+/Au → CO2+ B’ and ‘CO2+/Au → O2 C’ instead of the correct panel a, b, c ‘CO2+/Au → CO2+’, ‘CO2+/Au → O2+’ and ‘CO2+/Au → O2’, respectively. This has been corrected in the PDF and HTML versions of the Article.