Electrodes Based on Amorphous Metallic Aluminum Alloys in the Reactions of Hydrogen Release

Electrodes Based on Amorphous Metallic Aluminum Alloys in the Reactions of Hydrogen Release

We estimate the electrochemical activity of specimens of the amorphous metallic alloys (АМA) Al 87 Ni 8 Y 5 , Al 87 Ni 8 Y 4 Gd 1 , and Al 87 Ni 8 Dy 1 Y 4 in alkaline solutions of potassium hydroxide of different concentrations and the influence of partial substitution of 1 at. % Gd or Dy for Y. It...

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Veröffentlicht in:Materials science (New York, N.Y.) N.Y.), 2016, Vol.51 (4), p.548-554
Hauptverfasser: Boichyshyn, L. М., Hertsyk, О. М., Kovbuz, М. О., Kotur, B. Ya, Nosenko, V. K.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Aluminum alloys
Aluminum base alloys
Catalytic activity
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion and anti-corrosives
Corrosion resistance
Electrodes
Electrolytes
Estimates
Hydrogen
Hydroxides
Materials Science
Medical societies
Polarization
Potassium hydroxides
Solid Mechanics
Structural Materials
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Zusammenfassung:We estimate the electrochemical activity of specimens of the amorphous metallic alloys (АМA) Al 87 Ni 8 Y 5 , Al 87 Ni 8 Y 4 Gd 1 , and Al 87 Ni 8 Dy 1 Y 4 in alkaline solutions of potassium hydroxide of different concentrations and the influence of partial substitution of 1 at. % Gd or Dy for Y. It is shown that all investigated specimens are corrosion-resistant in the course of cyclic polarization within the potential range from – 1.2 to + 1.0 V in aqueous KОН solutions of various concentrations (0.5–5.0) М. It is shown that AMA electrodes alloyed with 1 at.% Dy exhibit the highest catalytic activity in a 4 М KОН solution.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-016-9874-8