Correction to: Nature Energy https://doi.org/10.1038/s41560-020-0560-6, published online 17 February 2020.

In the version of this Article originally published, the corresponding e-mail address for Zhengxiao Guo was ‘z.x.guo@ucl.ac.uk’, but should have been ‘zxguo@hku.hk’, and affiliations 7, 8 and 9 incorrectly included the term “Present address:”. These errors have been corrected in all versions.