Structural insights into metal-metalloid glasses from mass spectrometry.

ABSTRACT: Despite being studied for nearly 50 years, smallest chemically stable moieties in the metallic glass (MG) could not be found experimentally. Herein, we demonstrate a novel experimental approach based on electrochemical etching of amorphous alloys in inert solvent (acetonitrile) in the presence of a high voltage (1 kV) followed by detection of the ions using electrolytic spray ionization mass spectrometry (ESI MS). The experiment shows stable signals corresponding to Pd, PdSi and PdSi₂ ions, which emerges due to the electrochemical etching of the Pd₈₀Si₂₀ metallic glass electrode. These fragments are observed from the controlled dissolution of the Pd₈₀Si₂₀ melt-spun ribbon (MSR) electrode. Annealed electrode releases different fragments

SUBMITTER: Baksi A 

PROVIDER: S-EPMC7567878 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature