Search
Ni/cerium Molybdenum Oxide Hydrate Microflakes Composite Coatings Electrodeposited from Choline Chloride: Ethylene Glycol Deep Eutectic Solvent
Abstract
Cerium molybdenum oxide hydrate microflakes are codeposited with nickel from a deep eutectic solvent-based bath. During seven days of exposure in 0.05 M NaCl solution, the corrosion resistance of composite coating (Ni/CeMoOxide) is slightly reduced, due to the existence of some microcracks caused by large microflakes. Multielemental analysis of the solution, in which coatings are exposed and the qualitative changes in the surface chemistry (XPS) show selective etching molybdenum from microflakes. The amount of various molybdenum species within the surface of coating nearly completely disappear, due to the corrosion process. Significant amounts of Ce3+ compounds are removed, however the corrosion process is less selective towards the cerium, and the overall cerium chemistry remains unchanged. Initially, blank Ni coatings are covered by NiO and Ni(OH)2 in an atomic ratio of 1:2. After exposure, the amount of Ni(OH)2 increases in relation to NiO (ratio 1:3). For the composite coating, the atomic ratios of both forms of nickel vary from 1:0.8 to 1:1.3. Despite achieving lower corrosion resistance of the composite coating, the applied concept of using micro-flakes, whose skeleton is a system of Ce(III) species and active form are molybdate ions, may be interesting for applications in materials with potential self-healing properties.
Citations
-
1 2
CrossRef
-
0
Web of Science
-
1 5
Scopus
Authors (7)
-
Juliusz Winiarski
-
Anna Niciejewska
-
Sylwia Baśladyńska
-
Katarzyna Winiarska
-
Bogdan Szczygieł prof.
Cite as
Full text
- Publication version
- Accepted or Published Version
- License
-
open in new tab
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Materials
no. 13,
pages 1 - 17,
ISSN: 1996-1944 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Winiarski J., Niciejewska A., Ryl J., Darowicki K., Baśladyńska S., Winiarska K., Szczygieł B.: Ni/cerium Molybdenum Oxide Hydrate Microflakes Composite Coatings Electrodeposited from Choline Chloride: Ethylene Glycol Deep Eutectic Solvent// Materials -Vol. 13,iss. 4 (2020), s.1-17
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma13040924
- Verified by:
- Gdańsk University of Technology
seen 136 times
Recommended for you
Nickel-nanodiamond coatings electrodeposited from tartrate electrolyte at ambient temperature
- I. Makarova,
- I. Dobryden,
- D. Kharitonov
- + 4 authors
Effect of TiO2 Concentration on Microstructure and Properties of Composite Cu–Sn–TiO2 Coatings Obtained by Electrodeposition
- A. Kasach,
- D. Kharitonov,
- A. Paspelau
- + 4 authors
Influence of CeO2 and TiO2 Particles on Physicochemical Properties of Composite Nickel Coatings Electrodeposited at Ambient Temperature
- I. Makarava,
- M. Esmaeili,
- D. Kharitonov
- + 5 authors