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Digitale Medien

Sulfide ion electrooxidation catalysed by cobalt phthalocyanine microcrystals (1997)

Komorsky-Lovrić, Šebojka ; Lovrić, Milivoj ; Scholz, Fritz

Springer

Microchimica acta 127 (1997), S. 95-99

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Details

ISSN: 1436-5073

Schlagwort(e): sulfide ; electrooxidation ; cobalt phthalocyanine ; cyclic voltammetry

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract Electrooxidation of sulfide ion catalysed by microcrystals of cobalt phthalocyanine was investigated by cyclic voltammetry in 0.5M KNO3 at pH 9.22. Traces of catalyst were immobilized at the surface of a paraffin-impregnated graphite electrode by the mechanical transfer of its powder. The electro-oxidation of HS− proceeds in two irreversible steps, with the first peak between 0 V and −0.12 V and the second at 0.17 V. The first step is second order in HS− and its product is the adsorbed disulfide, which may further dissociate to give adsorbed sulfur atoms. The reduction of sulfur occurs at −0.1 V.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01243171

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