Standard Charge Transfer Rate Constants for Nb(V)/Nb(IV) Redox Pairs in Fluoride Melts

被引：9

作者：

Popova, A. V. ^{[1
]}

Kuznetsov, S. A. ^{[1
]}

机构：

[1] Tananaev Inst Chem & Technol Rare Elements & Mine, Apatity 184209, Murmansk Oblast, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2012年 / 48卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

redox couple; niobium complexes; cyclic voltammetry; diffusion coefficients; quasi-reversible process; standard charge transfer rate constant; CHLORIDE-FLUORIDE; ELECTROCHEMICAL IMPEDANCE; OXYFLUORIDE COMPLEXES; CYCLIC VOLTAMMETRY; MOLTEN-SALTS; NIOBIUM; REDUCTION; KINETICS; HALIDE; CHEMISTRY;

D O I：

10.1134/S1023193512010132

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Standard charge transfer rate constants (k(s)) were defined for Nb(V)/Nb(IV) redox couples in NaF-KF (eutectic)-K2NbF7, KF-K2NbF7, and CsF-K2NbF7 melts using the cyclic voltammetry technique. It was established that in fluoride melts, the k(s) values change in the following order depending on the composition of the second coordination sphere: k(s) (CsF) < k(s) (KF) < k(s) (NaF-KF).

引用

页码：93 / 98

页数：6

共 35 条

[1] Standard charge transfer rate constants for Nb(V)/Nb(IV) redox pairs in fluoride melts
A. V. Popova
S. A. Kuznetsov
Russian Journal of Electrochemistry, 2012, 48 : 93 - 98
[2] Standard rate constants of charge transfer for Nb(V)/Nb(IV) redox couple in chloride-fluoride melts: Experimental and calculation methods
A. V. Popova
V. G. Kremenetsky
V. V. Solov’ev
L. A. Chernenko
O. V. Kremenetskaya
A. D. Fofanov
S. A. Kuznetsov
Russian Journal of Electrochemistry, 2010, 46 : 671 - 679
[3] Standard rate constants of charge transfer for Nb(V)/Nb(IV) redox couple in chloride-fluoride melts: Experimental and calculation methods
Popova, A. V.
Kremenetsky, V. G.
Solov'ev, V. V.
Chernenko, L. A.
Kremenetskaya, O. V.
Fofanov, A. D.
Kuznetsov, S. A.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2010, 46 (06) : 671 - 679
[4] Unusual effect of the second coordination sphere on the standard charge transfer rate constants for the Nb(V)/Nb(IV) redox couple in chloride—Fluoride melts
S. A. Kuznetsov
V. G. Kremenetskii
A. V. Popova
O. V. Kremenetskaya
V. T. Kalinnikov
Doklady Physical Chemistry, 2009, 428 : 209 - 212
[5] Unusual effect of the second coordination sphere on the standard charge transfer rate constants for the Nb(V)/Nb(IV) redox couple in chloride-Fluoride melts
Kuznetsov, S. A.
Kremenetskii, V. G.
Popova, A. V.
Kremenetskaya, O. V.
Kalinnikov, V. T.
DOKLADY PHYSICAL CHEMISTRY, 2009, 428 : 209 - 212
[6] Standard rate constants of charge transfer of Nb(V)/Nb(IV) redox pair in equimolar NaCl-KCl melt
A. V. Popova
S. A. Kuznetsov
Russian Journal of Electrochemistry, 2008, 44 : 921 - 925
[7] Standard rate constants of charge transfer of Nb(V)/Nb(IV) redox pair in equimolar NaCl-KCl melt
Popova, A. V.
Kuznetsov, S. A.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2008, 44 (08) : 921 - 925
[8] The Effect of the Second Coordination Sphere on Electrochemistry of Niobium Complexes in Alkali Halide Melts II. Standard Rate Constants of Charge Transfer for the Nb(V)/Nb(IV) Redox Couple
Popova, A. V.
Kuznetsov, S. A.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2016, 163 (02) : H53 - H58
[9] The Composition of the Second Coordination Sphere and Charge Transfer of the Nb(V)/Nb(IV) Redox Couple in Alkali Halide Melts
Popova, A. V.
Kremenetsky, V. G.
Kuznetsov, S. A.
MOLTEN SALTS AND IONIC LIQUIDS 19, 2014, 64 (04): : 171 - 182
[10] Intervalence Charge Transfer of the Nb(V)/Nb(IV) Redox Couple in Alkali Chloride Melts: Experiment and Quantum-Chemical Calculations
Popova, A. V.
Kremenetsky, V. G.
Kuznetsov, S. A.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2017, 164 (08) : H5001 - H5006

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