TY - JOUR
T1 - MATHEMATICAL MODEL FOR VANADIUM(V) ELECTROREDUCTION KINETICS UNDER THE CONDITIONS OF STRIPPING VOLTAMMETRY AT A GRAPHITE ELECTRODE IN NH//4Cl SOLUTIONS OF DIFFERENT pH.
AU - Stromberg, A. G.
AU - Dubova, N. M.
AU - Kaplin, A. A.
N1 - Copyright:
Copyright 2004 Elsevier B.V., All rights reserved.
PY - 1985/1
Y1 - 1985/1
N2 - The effect of electrolysis potential on the maximum current of anodic electrooxidation of the vanadium deposit is studied at a graphite electrode in 0. 1 M NH//4Cl solutions of different pH (7. 70, 8. 45, 8. 85) under conditions where the VO//3** minus undergo reduction to V//2O//3(s) and V//2O//2(s). Transfer coefficients were calculated for the reduction of VO//3** minus to V//2O//3(s) ( alpha //1 equals 0. 16 plus or minus 0. 01) and of VO//3** minus to V//2O//2(s) ( alpha //2 equals 0. 14 plus or minus 0. 02). A semiempirical equation is proposed which describes the experimental relation between maximum current of anodic electrooxidation of oxide V//2O//3 and the electrolysis potential at different pH, and allows for the probable mechanism of vanadium(V) electroreduction under the conditions studied.
AB - The effect of electrolysis potential on the maximum current of anodic electrooxidation of the vanadium deposit is studied at a graphite electrode in 0. 1 M NH//4Cl solutions of different pH (7. 70, 8. 45, 8. 85) under conditions where the VO//3** minus undergo reduction to V//2O//3(s) and V//2O//2(s). Transfer coefficients were calculated for the reduction of VO//3** minus to V//2O//3(s) ( alpha //1 equals 0. 16 plus or minus 0. 01) and of VO//3** minus to V//2O//2(s) ( alpha //2 equals 0. 14 plus or minus 0. 02). A semiempirical equation is proposed which describes the experimental relation between maximum current of anodic electrooxidation of oxide V//2O//3 and the electrolysis potential at different pH, and allows for the probable mechanism of vanadium(V) electroreduction under the conditions studied.
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M3 - Article
AN - SCOPUS:0021942408
VL - 21
SP - 67
EP - 71
JO - Soviet electrochemistry
JF - Soviet electrochemistry
SN - 0038-5387
IS - 1
ER -