ELECTROCHEMICAL SYNTHESIS OF Fe-W NANOSTRUCTURAL ELECTROCATALYTIC COATINGS

被引：3
|
作者：
Bersirova, O. L. [1 ]
Bilyk, S. V. [1 ]
Kublanovs'kyi, V. S. [1 ]
机构：
[1] Ukrainian Natl Acad Sci, Vernadskii Inst Gen & Inorgan Chem, Kiev, Ukraine
来源：
MATERIALS SCIENCE | 2018年 / 53卷 / 05期
关键词：
Fe-W alloy; electrodeposition; coating; nanocrystalline structure; electrocatalysis; CORROSION PROPERTIES; SILVER COATINGS; ALLOYS; ELECTRODEPOSITION; MOLYBDENUM; TUNGSTEN;
D O I：
10.1007/s11003-018-0130-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrolytic Fe-W alloys are synthesized from citrate-ammonia electrolytes at current densities of 1-10 A. dm(-2) when their chemical composition undergoes insignificant changes. The structure of alloys is nanocrystalline, the block size is 20-40 angstrom, and the roughness is similar to 50-70 nm. It is shown that coatings by these alloys of the best quality can be obtained for the following optimal parameters: a current density of 1.5 A. dm(-2), pH 7.5, and a temperature of 70 degrees C. In the cyclic volt-ampere characteristic recorded in a 1 M KOH solution with an addition of ethanol, we detect a maximum of current caused by the electrooxidation of ethanol. This fact confirms the electrocatalytic properties of coatings in alkaline media.
引用
收藏
页码：732 / 738
页数：7
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