Alkaline electrolysis water hydrogen production technology principle and market status
Alkaline electrolysis water hydrogen production technology principle and market status Alkaline electrolysis water technology (ALK): Usually potassium hydroxide (KOH) solution is used as the electrolyte, a porous membrane is used as the diaphragm, and use non-noble metal nickel-based catalyst. The advantage of this technology is that it is mature and low-priced. It is the main water electrolysis technology. The structure of the electrolyzer: Alkaline electrolyzers are mainly composed of polar plates (bipolar plates + pole frames), catalytic electrodes, diaphragms, seals and other components. Catalytic electrodes: most of the electrodes currently used in alkaline electrolytic cells are nickel-based materials. They are mostly made of pure nickel mesh and nickel foam as the base material, and are coated with catalysts using processes such as spraying, roller coating, and electroless plating to improve electrolysis efficiency. Most of the catalysts are Nickel-based cataly...