RE: Next Hydrogen APPG Meeting - Tuesday 23 March, 11:15-12:1514 Mar 2021 22:37
The term 'rare-earth' elements seems to have been hijacked in modern times. I guess it was probably following the development of Neodymium into extremely powerful magnets, for their size, that the term gained a wider audience. As far as I know Neodymium is the most used, actual rare-earth element, within the EV and wind-farm sector (correct me if I'm wrong) being heavily used in the motors and generators. Now it seems to have been adopted by the general public that anything that isn't tin, coal, copper, iron, or aluminuim that we've been mining for ages must be rare and therefore, having vaguely heard the term before, must be rare-earth. On the contrary, for example, Lithium isn't a rare-earth element and isn't particularly rare either. But like a lot of elements it just isn't found in high levels of concentration so you can't just open a mine and chip off a piece of solid Lithium. Although generally abundant throughout the earth's crust, the trick is to find these more challenging elements in high enough concentrations that their separation following the mining of vast amounts of ore is economically beneficial. Exactly the same challenge is what we're facing with green hydrogen, tons of hydrogen about but can we economically separate it from the molecules it's rather attached to, and also economically transport it to its destination.