1 **Título Reformulado (separado claramente):** Challenges in Scaling Catalyst-Coated Membranes for Proton Exchange Membrane Water Electrolyzers

Introduction to Proton Exchange Membrane Water Electrolyzers Proton exchange membrane water electrolyzers (PEMWEs) are at the forefront of transforming renewable energy into green hydrogen, a crucial step towards achieving carbon neutrality. Among various electrolysis technologies, PEMWEs stand out due to their high current densities, broad partial load range, and excellent compatibility with fluctuating renewable energy […]