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  • 1
    Electronic Resource
    Electronic Resource
    Electrochemical behaviour of copper in a NaF-AlF3-BaCl2 ternary melt at 750° C (1976)
    Springer
    Journal of applied electrochemistry 6 (1976), S. 507-514 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Voltammetric and chronopotentiometric methods were used to study the electrochemical behaviour of copper in the NaF-AlF3-BaCl2 ternary melt at 750° C. Copper, graphite and platinum were used as electrode materials. It was shown that the electrochemical reduction of copper ions is a single step process, with the reversible exchange of one electron at a copper electrode. The value of the diffusion coefficient of the cuprous ion, determined by means of chronopotentiometry, isD =(2.8±0.3)× 10−5 cm2 s−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614538
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electrochemical behaviour of pure iron in the aluminium refining electrolyte (1978)
    Springer
    Journal of applied electrochemistry 8 (1978), S. 103-108 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The reduction of iron dissolved in the aluminum refining industrial melt was studied using cyclic voltammetry and chronopotentiometry. The required solutions were obtained by adding ferrous or ferric fluoride to the Gadeau electrolyte. The experimental arrangement permitted molten fluoride electrolysis as well as the introduction of additional salts under an inert argon atmosphere. Platinum, iron and graphite electrodes were used. Chemical analysis proved that the stable ionic valency of iron in the melt at 750° wasII. The reduction reaction of the Fe(II) ions was reversible and involved two electrons. The diffusion coefficient of the Fe(II) ions was calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617668
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Electrochemical behaviour of manganese in the aluminium electrorefining bath (1979)
    Springer
    Journal of applied electrochemistry 9 (1979), S. 715-719 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The study of the mechanism of the electrode reaction Mn(II)/Mn in the aluminium electrorefining bath free of aluminium fluoride (1·48 NaF-1·05 BaCl2) has been carried out by chronopotentiometry with an inert graphite electrode, a manganese electrode and a platinum electrode; this study was supplemented by utilizing anodic chronopotentiometry with current reversal from a stationary state. The tests carried out at 800° C show that the exchange mechanism of Mn(II)/Mn is reversible, involves the exchange of two electrons and that the diffusion coefficient DMn(II)=(1·9±0·5)×10−5 cm2 s−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614965
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    Paper (German National Licenses)
    Fulltext
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