Iridium oxide is an active and stable catalyst for the oxygen evolution reaction, however Ir is very rare, making it unsuitable for large-scale application. Here the authors develop a class of Ir double perovskites containing less Ir than iridium oxide, but exhibiting 3-fold higher activity in acidic media.
- Oscar Diaz-Morales
- Stefan Raaijman
- Marc T. M. Koper
