In the FWIW department, here is a Russian paper where it is likely that either DDL or at least deep f/H was found, extracted and possibly misidentified (mislabeled, since it does not fit the definition of metallic hydrogen).
Hope you saved all those old NiCads and NIMH batteries! They could be worth more than gold, if the Ruskies are for real. "Possibility of obtaining atomic metallic hydrogen by electrochemical method" Nikolay E. Galushkin, Nataliya N. Yazvinskaya, Dmitriy N. Galushkin 2013 The authors find that a dense hydrogen species gradually formed over the years inside of sintered oxide-nickel electrodes of nickel-cadmium battery over a long period of electrochemical hydrogenation (more than five years). The density this species is 12 times higher than liquid hydrogen and a good conductor but not a superconductor. "It was established that density is 0.85 g/ccm, specific energy of hydrogen recombination is 216 MJ kg" (whoa!) (Gasoline contains about 42 MJ/kg) Jones <https://drive.google.com/file/d/0B1_tFmz65k8Bb1p3RTVVZWFDdDg4Vm5pa20yMFppS2 EzaTRJ/view?pli=1> https://drive.google.com/file/d/0B1_tFmz65k8Bb1p3RTVVZWFDdDg4Vm5pa20yMFppS2E zaTRJ/view?pli=1 Meulenberg/Paillet paper on DDL. I was hoping that they would address the Holmlid results wrt to DDL. There was no mention, despite Holmlid's work being the only actual experiments which seems to verify the existence of such an allotrope.
