Extended Data Fig. 1: Low-temperature water electrolyser architectures and designs.
From: Water electrolysers with closed and open electrochemical systems
a, Alkaline water electrolyser. b, Proton exchange membrane water electrolyser. c, Anion exchange membrane water electrolyser. The components and commonly used materials or commercial products of each electrolyser design are listed at the top and at the bottom of the schematics, respectively.
