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Characterization of the electrocatalytic properties of amorphous metals for oxygen and hydrogen evolution by impedance measurements

✍ Scribed by Hailemichael Alemu; K. Jüttner

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 574 KB
Volume: 33
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(88)80201-9

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✦ Synopsis

The electrocatalytic properties of amorphous metals containing Fe, Co, and Ni as main components have been studied for the oxygen and hydrogen evolution in I M KOH at four different temperatures, T = 298, 323, 348, and 363 K . The methods employed were ac-impedance, cyclic voltammetry and steady state polarization techniques. For comparison, measurements were carried out on polycrystalline Fe, Co, Ni, and Pt. It was found that the amorphous metal Co50Nir3Si, IB10 is the best catalyst for the oxygen evolution and Fe60Co20SimB10 is a good catalyst for both oxygen and hydrogen evolution reactions comparable with Pt .

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