Platinum-Group-Metal-Free Heterostructure Phosphide Cathode for Anion-Exchange Membrane Water Electrolyzers

Government

National laboratory research

Investment firm

An oxygen evolution catalyst used in alkaline electrolyzer systems as a complement to the phosphide cathode. It is a proven, earth-abundant alternative to precious metal anodes.

A water electrolysis technology that uses a solid polymer membrane to conduct protons. PEM systems traditionally rely on platinum group metals as catalysts.

A water electrolysis technology that splits water into hydrogen and oxygen while shuttling hydroxide ions through an alkaline polymer membrane. AEMWE combines the cost benefits of traditional alkaline electrolysis with the compactness and efficiency of membrane-based technologies.

Missouri

Research and development of a non-precious-metal catalyst system for anion-exchange membrane water electrolyzers, combining a nanoscale heterostructure of two complementary metal phosphides with a nickel-iron anode.

A nanoscale heterostructure composed of two complementary metal phosphides designed to replace platinum in anion-exchange membrane water electrolyzers. The cathode operates at industry-level current densities for over 1,000 hours without degradation.

Academic publishing