Catalytic electrode comprising a gas diffusion layer and bubble-involved mass transfer in anion exchange membrane water electrolysis: A critical review and perspectives

作者：Ning Yang, Haonan Li, Xiao Lin, Stella Georgiadou, Hong Liang, Zhaohua Wang, Fan He, Zhifu Qi, Wen‐Feng Lin · 发表于：Journal of Energy Chemistry · 年份：2025 · DOI：10.1016/j.jechem.2024.12.073 · 被引用次数：68 · 研究领域：Electrocatalysts for Energy Conversion、Advanced battery technologies research、Fuel Cells and Related Materials

Production of green hydrogen through water electrolysis powered by renewable energy sources has garnered increasing attention as an attractive strategy for the storage of clean and sustainable energy. Among various electrolysis technologies, the emerging anion exchange membrane water electrolyser (AEMWE) exhibits the most potential for green hydrogen production , offering a potentially cost-effective and sustainable approach that combines the advantages of high current density and fast start from proton exchange membrane water electrolyser (PEMWE) and low-cost catalyst from traditional alkaline water electrolyser (AWE) systems. Due to its relatively recent emergence over the past decade, a series of efforts are dedicated to improving the electrochemical reaction performance to accelerate the development and commercialization of AEMWE technology. A catalytic electrode comprising a gas diffusion layer (GDL) and a catalyst layer (CL) is usually called a gas diffusion electrode (GDE) that serves as a fundamental component within AEMWE, and also plays a core role in enhancing mass transfer during the electrolysis process. Inside the GDEs, bubbles nucleate and grow within the CL and then are transported through the GDL before eventually detaching to enter the electrolyte in the flow field. The transfer processes of water, gas bubbles, charges, and ions are intricately influenced by bubbles. This phenomenon is referred to as bubble-associated mass transfer. Like water management in ...