High-Entropy Self-Rebuilding Electrode Enhances Green Hydrogen Production in AEM Electrolyzers

Researchers at the Chinese Academy of Sciences have made a significant leap in the world of green hydrogen production. They’ve developed a self-rebuilding high-entropy antiperovskite oxygen-evolution electrode crafted on porous nickel foam. This innovative electrode can maintain industrially relevant current densities in anion exchange membrane (AEM) electrolyzers for hundreds of hours with just minor performance dips. What sets this apart is how it intentionally uses surface reconstruction instead of merely trying to prevent it, changing the game for hydrogen production.

The project is spearheaded by Guowen Meng and Bin Chen at the Institute of Solid State Physics in Hefei, and their findings are published in ACS Nano. By engineering a lattice made up of five metals, the team allows it to undergo a controlled transformation under oxygen evolution reaction (OER) conditions. This creates an active oxyhydroxide phase on the outer layer, improving charge transfer and enhancing catalytic performance over extended periods.

Start a free 7-day trial for unlimited articles plus hydrogen company, project & technology intelligence. Cancel anytime.
Continue reading on Hydrogen Fuel News → · Subscribe