Sarac, BaranIvanov, YuryKarazehir, TolgaPutz, BarbaraGreer, A. LindsaySarac, A. SezaiEckert, Juergen2025-01-062025-01-0620200947-65391521-376510.1002/chem.2020015962-s2.0-85086506794https://doi.org/10.1002/chem.202001596https://hdl.handle.net/20.500.14669/2299Nanostructured metallic glass films (NMGF) can exhibit surface and intrinsic effects that give rise to unique physical and chemical properties. Here, a facile synthesis and electrochemical, structural, and morphologic characterization of Pd-Au-Si based MGs of approximately 50 nm thickness supported on Si/SiO(2)is reported. Impressively, the maximum total hydrogen charge stored in the Pd-Au-Si nanofilm is equal to that in polycrystalline Pd films with 1 mu m thickness in 0.1 mH(2)SO(4)electrolyte. The same NMGF has a volumetric desorption charge that is more than eight times and 25 % higher than that of polycrystalline PdNF and Pd-Cu-Si NMGF with the same thickness supported on Si/SiO2, respectively. A significant number of nanovoids originating from PdH(x)crystals, and an increase in the average interatomic spacing is detected in Pd-Au-Si NMGF by high-resolution TEM. Such a high amount of hydrogen sorption is linked to the unique density fluctuations without any chemical segregation exclusively observed for this NMGF.eninfo:eu-repo/semantics/openAccesselectrosorptionhydrogenationmetallic glassnanostructuresthin filmsArticle82533732329916Q1824426WOS:000540746600001Q2