New stable water-splitting catalyst doesn’t require expensive iridium
Green Car Congress
OCTOBER 22, 2022
Researchers have developed a nickel-stabilized, ruthenium dioxide (Ni-RuO 2 ) anode catalyst for proton exchange membrane (PEM) water electrolysis. The Ni-RuO 2 catalyst shows high activity and durability in acidic OER for PEM water electrolysis. A schematic shows the experimental water electrolyzer developed at Rice to use a nickel-doped ruthenium catalyst. That’s why the only practical material used in commercial proton exchange membrane water electrolyzers is iridium.