Corrosion of nanocrystalline nickel coatings electrodeposited from choline chloride:ethylene glycol deep eutectic solvent exposed in 0.05 M NaCl solution

被引：33

作者：

Winiarski, Juliusz ^{[1
]}

Cieslikowska, Beata ^{[1
]}

Tylus, Wtodzimierz ^{[1
]}

Kunicki, Piotr ^{[2
]}

Szczygiel, Bogdan ^{[1
]}

机构：

[1] Wroclaw Univ Sci & Technol, Dept Adv Mat Technol, Fac Chem, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland

[2] Nanores Sp Z Oo Sp K, Bierutowska 57-59, PL-53317 Wroclaw, Poland

来源：

APPLIED SURFACE SCIENCE | 2019年 / 470卷

关键词：

Metal coatings; Nickel; EIS; Polarization; XPS; Electrodeposited films; Passive films; ALLOY COATINGS; XPS SPECTRA; METAL; SPECTROSCOPY;

D O I：

10.1016/j.apsusc.2018.11.155

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：

Over 10 days of exposure in 0.05 M NaCl solution, Ni coaling with mean crystallite size of 6 nm deposited in ChCl:EG deep eutectic solvent corrodes with diffusion constraints. Native oxide layer (4.7 nm thick) is a mixture of NiO and NiOOH. During exposure, NiO forms on the top of the layer of corrosion products, whose thickness exceeds 15 nm after 10 days. Double layer capacitance increases due to the growth of the active surface. Thickening of the layer and diffusion limitations leads to the increase in charge transfer resistance from teens of k Omega cm(2) to 220 k Omega cm(2).

引用

页码：331 / 339

页数：9

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