I agree that hydrogen hasn't even started to get the hype traction that lithium in particular has garnered in recent times. There is a few ways to play this thematic and I have positioned into Sparc Tech.
SPN (Sparc Technologies) has a p/ship with Twiggys FFI and the Adelaide Uni. Interesting times this month going by this article ...
"Later this month, Adelaide’s Sparc Technologies will release the technical economic assessment of its green hydrogen technology – and potentially deliver the knockout blow to Australia’s fossil fuels. Sparc Technologies executive chairman Stephen Hunt said the company is “looking forward to announcing some very positive results” with the release of the technical economic assessment (TEA) of its green hydrogen technology at the end of this quarter. The TEA will provide some economic metrics for the project and [an] understanding of how it may compare with the cost of hydrogen production against the more conventional electrolysis green hydrogen production – and, ultimately, also against fossil fuels,” Hunt said...
This also as SPN also has graphene side hustle ...
"Advanced discussions continued with several global paint companies. Discussions are focused on securing formal collaborative technical agreement/s as the precursor to a commercial agreement/sApproach used in advancing Coatings activities is now being used to progress further opportunities within the Building Materials sector; the initial focus on, Composites and ConcreteTesting continues on Antifouling Coatings technology – with the project well advanced in terms of the formal evaluation of a disruptive antifouling graphene product
