They accidentally discovered a band of sedimentary rock that contained unusually high levels of a rare element, iridium. Chemical dating techniques put the rock at around 65 million years old.

What makes this achievement remarkable is the use of inexpensive nickel compounds for the anode catalyst, replacing costly and rare iridium. Hydrogen will play a major role in the energy system of ...

Mattiq says it is evaluating “millions of combinations” of different alternatives to iridium for PEM electrolysis, while Hystar, Air Liquide, and Trillium Energy Solutions have revealed plans ...