Kinetics of electroreduction of Cr3+ ions in sulfate solutions

被引：23

作者：

Kuznetsov, VV ^{[1
]}

Vinokurov, EG ^{[1
]}

Kudryavtsev, VN ^{[1
]}

机构：

[1] Mendeleev Univ Chem Technol, Moscow 125190, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2001年 / 37卷 / 07期

关键词：

Sulfate; Physical Chemistry; Reaction Order; Metal Layer; Sulfate Solution;

D O I：

10.1023/A:1016712616902

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Kinetics of electroreduction of Cr3+ ions in an electrolyte based on Cr3+ sulfate, which permits to produce thick (up to 100 mum) hard metal layers, is studied. The chemical stage of rearrangement of Cr2+ complexes in the near-electrode layer is the reaction's slow stage. The experimental Tafel slope b(taf) = 72 mV, which is close to theoretical value of 60 mV, and the reaction orders p(H+) = -1 and p(Cr3+) = 1 are explained.

引用

页码：699 / 703

页数：5

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