Promoting in-situ stability of hydroxide exchange membranes by thermally conductive network for durable water electrolysis.

ABSTRACT: Hydroxide exchange membrane (HEM) water electrolysis is promising for green hydrogen production due to its low cost and excellent performance. However, HEM often has insufficient stability in strong alkaline solutions, particularly under in-situ electrolysis operation conditions, hindering its commercialization. In this study, we discover that the in-situ stability of HEM is primarily impaired by the locally accumulated heat in HEM due to its low thermal conductivity. Accordingly, we propose highly thermally conductive HEMs with an efficient three-dimensional (3D) thermal diffusion network to promote the in-situ stability of HEM for water electrolysis. Based on the 3D heat conductive network, the thermal conductivity of polymeric HEM is boosted by 32 times and thereby reduce the HEM temper

SUBMITTER: Wang W 

PROVIDER: S-EPMC11754833 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature