Just have a Think - Hydrogen storage in powder, Breakthrough or Busted, 25092022

Hydrogen is not easy to store. To get it into a manageable form it either has to be highly compressed or cryogenically chilled, both of which are expensive and energy hungry processes. Now two separate and completely unconnected teams claim to have worked out how to store hydrogen in powder form. So is this a genuine breakthrough or yet more wishful thinking?