Effects of glycine and current density on the mechanism of electrodeposition, composition and properties of Ni-Mn films prepared in ionic liquid

被引：34

作者：

Guo, Jiacheng ^{[1
]}

Guo, Xingwu ^{[1
]}

Wang, Shaohua ^{[1
]}

Zhang, Zhicheng ^{[1
]}

Dong, Jie ^{[1
]}

Peng, Liming ^{[1
]}

Ding, Wenjiang ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Natl Engn Res Ctr Light Alloys Net Forming, Shanghai 200240, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2016年 / 365卷

基金：

中国国家自然科学基金;

关键词：

Ionic liquid; Electrodeposition; Glycine; Film; Corrosion; ZN-MN; CORROSION BEHAVIOR; PROTECTIVE ABILITY; ALLOYS; COATINGS;

D O I：

10.1016/j.apsusc.2015.12.248

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of glycine on the mechanism of electrodeposition of Ni-Mn alloy film prepared in ChCl-urea ionic liquid were studied in order to control the composition, microstructure and properties of the film. The cyclic voltammograms revealed that the presence of glycine in the ionic liquid can inhibit the reduction of Ni2+ ions but promote the reduction of Mn2+ ions in the cathodic scan. However, it promoted the dissolution of both Ni and Mn deposits in the ChCl-urea ionic liquids during the reverse scan. Glycine changed the mode of Ni-Mn film growth from Volmer-Weber mode into Stranski-Krastanov mode. The Mn content in the Ni-Mn film increased with the increase of concentration of glycine and current density. The Ni-Mn alloy film with 3.1 at.% Mn exhibited the lowest corrosion current density of 3 x 10(-7) A/cm(2) compared with other films prepared and exhibited better corrosion resistance than pure Ni film in 3.5 wt.% NaCl solution. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：31 / 37

页数：7

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