来自MSN9 个月
Scientists crack green hydrogen code with iridium-free electrolyzer design
A collaboration between researchers at various institutes in Spain has successfully developed an electrolyzer that does not use the rare earth element iridium at its anode. Under laboratory ...
PBS8 年
Alvarez finds evidence of dinosaur-killing asteroid
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.