Kinetics and mechanism of the discharge-ionization of manganese in an ammonium chloride solution

被引：5
|
作者：
Kozin, L. F. [1 ]
Mashkova, N. V. [1 ]
Manilevich, F. D. [1 ]
机构：
[1] Natl Acad Sci Ukraine, VI Vernadskii Inst Gen & Inorgan Chem, UA-03680 Kiev, Ukraine
来源：
PROTECTION OF METALS | 2007年 / 43卷 / 06期
关键词：
82.45.Hk; 82.45.Qr;
D O I：
10.1134/S0033173207060033
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Analysis of the cathodic and anodic polarization curves recorded on manganese in a 2.0 M MnCl2 + 2.0 M NH4Cl solution (pH 5.5 +/- 0.1 and t = 18 to 60 degrees C reveals the multistage character of the discharge-ionization of manganese in such a solution involving the formation of intermediate Mn-ads(+) particles. The subsequent ad transformation of Mn-ads(+) particles proceeds via either the electrochemical redox reaction or disproportionation. ad The inflection points in the cathodic polarization curves originate seemingly from the change in the surface charge of the electrode on passing the zero potential.
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页码：537 / 541
页数：5
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