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Electrochemical behaviour of bismuth(V) and bismuth(III) compounds at a carbon paste electrode. Application to the study of the superconductor BiSrCaCuO

✍ Scribed by A.M. Espinosa; M.T. San José; M.L. Tascón; M.D. Vászquez; P. Sánchez Batanero

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
773 KB
Volume
36
Category
Article
ISSN
0013-4686

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✦ Synopsis

Abstrad-The electrochemical behaviour of NaBiO, and Bi,03 at solid state at a carbon paste electrode with electrolytic binder has been studied. We have carried out several experiments to elucidate the electrochemical transformation of both bismuth compounds in 10 M KOH media between + 500 and -1500 mV (see). The voltammograms have been employed to propose several mechanisms of charge transfer. Besides, we have recorded the voltammograms of the Bi,Sr2CaCu20, _ x superconductor in the same media in order to elucidate its oxidation state distribution.

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