Here is more on this....

Porous silicon material for ultra-pure hydrogen production and storage - Inceptive Mind

Unfortunately, it raises as many quesitons as it answers - especially as to where they source their metallurgical silicon - other than dumpter diving for solar recycles.  They could be a customer if the QRR and NSIR live up to the claims and hopes of purity and thruput.  Here are some take aways toward the end of the article that peaked my interest:

The production process consumes underutilized electricity, emitting no greenhouse gases. The raw material is metallurgical silicon, which can be sourced from sand together with a carbon source, or from recycled silicon from broken or end-of-life, solar panels otherwise destined for landfill.

The company claims that its Si+, which is in solid form and packed in containers, can ship up to 30,000 tonnes of hydrogen per average-sized cargo ship. For comparison, the world’s first liquid hydrogen ship built by Kawasaki Heavy Industries can only carry 88.5 tonnes of liquid hydrogen.

As a guaranteed source of safe, on-demand energy, Si+ has multiple uses. It can facilitate the phasing out of expensive and polluting backup diesel generator sets. In addition, Si+ is an ideal replacement for marine fuel oil and offers a thermal energy storage solution through exothermic heat that is released during the Si+ hydrogen generation reaction.

The material will also support the mass roll-out of hydrogen fuel cell electric vehicles and hydrogen-powered flights. Si+ hydrogen refueling stations generating on-demand hydrogen locally can share the footprint of existing fuel stations, reducing capital and operational expenditure.