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Electrocatalytic oxygen reduction with thiospinels and other sulphides of transition metals

โœ Scribed by H. Behret; H. Binder; G. Sandstede

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
617 KB
Volume
20
Category
Article
ISSN
0013-4686

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โœฆ Synopsis

Thiospinels and other sulphides were examined sqs'cmatically with regard to their eiectrocatalytic activity for oxygen reduction m acid electrolyte. The measurements were carried out by potentiodynamic and galvanostalic methods. The rnr~al~ cobalt. iron and nickel shou the highest activity in sulphur compounds, the best results being obtained by cobalt. Other transition metals reduce the activity.

A considerable decrease in activity is observed when sulphur is partly or totally replaced by oxygen, selenium or tellurium: the same effect is observed with disulphides. A simple mtcrpretation of the results obtained is possible considering the geometric and electrostatic conditions in the spinels.

๐Ÿ“œ SIMILAR VOLUMES

Comparison of the reaction mechanisms of
Comparison of the reaction mechanisms of electrocatalytic oxygen reduction using transition metal thiospinels and chelates
โœ H. Behret; H. Binder; W. Clauberg; G. Sandstede ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 530 KB

Abatnet -The cathode process of oxygen reduction on thiospinels and other sulphida was examined by potentiodynamic, galvanostatic and rotating ring-disc electrode measurements. The highest activity was found with the sulphur compounds of cobalt and iron. The results are compared with those obtained