Electrocatalytic Behavior of Hydrogenated Pd-Metallic Glass Nanofilms: Butler-Volmer, Tafel, and Impedance Analyses

Enhancement of Interfacial Hydrogen Interactions with Nanoporous Gold-Containing Metallic Glass

“…New-generation Pd-based nanomaterials are promising candidates to enhance the efficiency of hydrogen interactions, thus providing green alternatives for nanoscale energy applications. Among these, Pd-metallic glasses (MGs) have recently garnered significant recognition in a variety of energy applications, including hydrogen storage and release, − hydrogen evolution reaction (HER), − hydrogen oxidation reaction in fuel cells, methanol/ethanol electrooxidation, − glucose sensors, MEMS hydrogen sensor, − and hydrogen permeation membranes. − The grain-free structure of metallic glasses, along with the presence of free volume between atomic clusters, are advantages of Pd-MGs over polycrystalline Pd (alloys) in terms of hydrogen storage and release as well as electrochemical stability in long-term use. ,,,, …”

“…23−25 The grain-free structure of metallic glasses, along with the presence of free volume between atomic clusters, are advantages of Pd-MGs over polycrystalline Pd (alloys) in terms of hydrogen storage and release as well as electrochemical stability in long-term use. 1,4,5,8,9 Au in Pd−Au−Si metallic glasses breaks down the strong metal−metalloid bonds, forming new short-to medium-range order clusters (as in Pd−Cu−Si and Pd−Ni−P systems). 26,27 These clusters are disordered Pd atoms and/or nanocrystals, and the space between these structures is occupied by absorbed hydrogen, either in ionic or molecular form, which is subsequently attached to the metallic glass.…”

Hydrogen storage performance of the multi-principal-component CoFeMnTiVZr alloy in electrochemical and gas–solid reactions

“…The formation of two hydride phases in the hydrogenated sample, together with the low volumetric expansion of the crystal lattice generated by hydrogen absorption, is in good agreement with previously reported data on the ZrTiVNiCrFe MPC alloy. 48 Meanwhile, for most C14 type binary intermetallics, the volumetric expansion reaches and sometimes even exceeds 20% at the same hydrogen concentration. 18,[64][65][66][67][68] The signicantly reduced effect of specic volume on hydride formation seems to be typical for MPC alloys.…”

“…35 CV is also used to analyze the sorption and desorption behavior of hydrogen and electrocatalytic behavior in various materials and applications. [36][37][38][39][40][41][42][43][44][45][46][47][48][49] Hydrogen absorption and evolution reactions have attracted growing interest in the past years due to their insufficient kinetics, i.e. low conductivity of OH À ions in alkaline electrolytes.…”

Microstructure and corrosion behavior of Al95−xNixY5 (x = 7,10) glassy ribbons

“…Corrosion behavior is important for amorphous alloys in many applications and can be investigated by Tafel polarization and electrochemical impedance spectroscopy (EIS) tests. 18,19 The open-circuit potential (OCP) and polarization curves on the light and dark sides of the as-spun Al 95Àx Ni x Y 5 ribbons (x ¼ 7 and 10) in 3.5 wt% NaCl solution are shown in Fig. 4.…”