About the first two articles: A new wrinkle on old art. The non-aluminum components of the alloy prevent the Al2O3 from forming a relatively impermeable barrier on the surface that keeps the reactants apart. That's the real news. Weight-for-weight (but not volume-for-volume), lithium metal generates slightly more hydrogen than the new alloy.

The first sentence of the first article:
"An Indiana startup called AlGalCo is to commercialize a Purdue University research development that extracts hydrogen from water using aluminum and gallium as catalysts."

Bullshit.The aluminium is CONSUMED in the reaction. Therefore it's NOT a catalyst. But the stupidity of the author does not reflect on the efficacy of the technology.

The claim about Freedman's product, Chemalloy, could be interpreted in two ways. It could be an over-unity claim, in which case the bullshit probability is more than 99.999%. Oh, I almost forgot. Big Oil bought off Freedman, and the revolutionary technology has been langushing for more than 50 years. Yeah, right.

Or more interestingly, the Chemalloy could be acting as a catalyst for a photochemical reaction to split apart the water molecules into H2 and O2 gases. There's ongoing research about that, using different materials. Who knows? Maybe Freedman has scooped everyone else?