Anode Engineering for Proton Exchange Membrane Water Electrolyzers

Sustainable hydrogen (H2) production via water electrolysis is one of the most critical pathways to decarbonize the chemical industry. Among various electrolyzer technologies, proton exchange membrane (PEM) water electrolyzer (PEMWE) is widely regarded as having a great advantage and promise for large-scale H2 production given its high efficiency, reliable stability, and high output pressure. Though state-of-the-art iridium-based catalysts exhibit satisfying activity and stability for oxygen evolution reaction at the anode, their high loadings, as well as the precious metal coating and titanium bulk of porous transport layer (PTL) and bipolar plates, significantly add to the capital cost of the PEMWE stack.…

• DA
  David and Lucile Packard Foundation

  Award: 2020-71371
• WF
  Welch Foundation

  Award: C-2051-20230405