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June 12, 2026Nature CommunicationsOpen Access

Uniform nanoporous zirconia composite membrane enabling high-performance alkaline water electrolysis

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Authors

ZXZhipeng XuZLZhihao LinDHDaohui He

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Overview

Randomized trial shows improved hydrogen production in alkaline water electrolysis, indicating a breakthrough in membrane technology.

Key Points

  • This research aims to enhance alkaline water electrolysis efficiency using a novel nanoporous zirconia composite membrane.
  • Developed a nanoporous composite membrane using yttria-stabilized zirconia nanoparticles and polybenzimidazole via a one-pot sol-gel process.
  • Measured bubble-point pressure exceeding 25 bar, and current density at 2.0 V in alkaline electrolytes.
  • Assessed long-term stability over 7000 hours with reinforcement from polyphenylene sulfide mesh.
  • The membrane achieved a high current density of 13.1 A cm–2 at 2.0 V.
  • Maintained a high porosity of ~85% while ensuring strong stability and reliability.
  • Operated effectively across a broad range of alkaline electrolyte concentrations.

Cite This Study

Xu et al. (2026) studied this question.

synapsesocial.com/papers/6a2ba18c8101cf8926f00f7bhttps://doi.org/10.1038/s41467-026-74108-7
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