Haoyu Yin

Correction to: Nature https://doi.org/10.1038/s41586-026-10666-6 Published online 17 June 2026 In the version of this article initially published, due to figure preparation mistakes, the plots in Fig. 4b and Supplementary Fig. 49a–c,f were assembled from incorrect source files. In Extended Data Fig. 4b, the x-axis unit label now reading “s” was originally written “h”, while an additional, but unmentioned control sample (blue data points) has been removed for clarity.

Abstract Nanoporous anion-conducting membranes have gained considerable interest for their potential to reduce resistance in electrochemical devices1,2,3,4. Current pore-forming methods, such as backbone engineering through polymers of intrinsic microporosity5,6 or covalent organic and metal–organic frameworks7,8, however, suffer from limited structural control, mechanical fragility or demanding synthesis.

Abstract The electro-oxidation of formaldehyde at low potential with anodic hydrogen evolution offers an energy-saving way for hydrogen production. Coupling this reaction in an acidic catholyte with an alkaline anolyte within an acid-alkali hybrid electrochemical system enables self-powered hydrogen production with electricity generation.