Synthesis and Structure of the Nanosized Cobalt Coatings on Porous Aluminum Oxide

R. G. Valeev; Валеев Р. Г.; A. S. Alalykin; Алалыкин А. С.; A. N. Beltiukov; Бельтюков А. Н.; V. V. Kriventsov; Кривенцов В. В.

doi:10.31857/S1028096023110225

Synthesis and Structure of the Nanosized Cobalt Coatings on Porous Aluminum Oxide

Authors: Valeev R.G.¹, Alalykin A.S.¹, Beltiukov A.N.¹, Kriventsov V.V.²
Affiliations:
1. Udmurt Federal Research Center of the Ural Branch of the RAS
2. Boreskov's Catalysis Institute of Siberian Branch of the RAS
Issue: No 11 (2023)
Pages: 72-77
Section: Articles
URL: https://journals.rcsi.science/1028-0960/article/view/232219
DOI: https://doi.org/10.31857/S1028096023110225
EDN: https://elibrary.ru/EPEEAH
ID: 232219

Cite item

Full Text

Open Access
Restricted Access

Access granted
Restricted Access

Subscription Access

Abstract
About the authors
References
Supplementary files
Statistics

Abstract

The results of studies of the morphology and chemical structure of cobalt coatings deposited by magnetron sputtering on nanostructured surfaces of porous alumina with different morphologies are presented. The morphology of porous alumina was specified by the anodization voltage in solutions of sulfuric (25 V) and oxalic (40 and 120 V) acids. Using scanning electron and atomic force microscopy, it has been shown that the coatings have morphological features, which are hexagonally arranged nanoparticles formed at the boundaries between pores. With an increase in the size of nanopores on the surface of the substrates, the size and shape of the morphological features of the deposited coatings change. According to X-ray absorption fine structure spectroscopy and fine structure spectroscopy of the near region of the X-ray absorption edge, there are changes in the local atomic structure of cobalt, in particular, cobalt in a coating sample deposited on the surface of porous alumina obtained by anodizing at a voltage of 25 V in sulfuric acid, oxidized more strongly, which is associated with greater chemical activity due to the smaller sizes of the nanoparticles that make up the coating. The results obtained will allow in the future to make a directed change in the formation of structure-sensitive properties, such as chemical and electrochemical activity, magnetic sensitivity, of the resulting coatings.

Keywords

cobalt, porous alumina, coating, electron microscopy, EXAFS, XANES.

References

Lazzari J., Melnick I., Randet D. // IEEE Trans. Magnetics. 1967. V. 3. Iss. 3. P. 205. https://www.doi.org/10.1109/TMAG.1967.1066051
Zhang X., Lee C.S.-M., Mingos D.M.P., Hayward D.O. // Appl. Catalysis A: General. 2003. V. 248. Iss. 1–2. P. 129. https://www.doi.org/10.1016/S0926-860X(03)00154-6
Rytter E., Aaserud C., Hilmen A.-M., Bergene E., Holmen A. // Catalysts. 2022. V. 12. № 1. P. 65. https://www.doi.org/10.3390/catal12010065
Jimenez J.D., Wen C., Royko M.M., Kropf A.J., Segre C., Lauterbach J. // Chem. Cat. Chem. 2020. V. 12. Iss. 3. P. 846. https://www.doi.org/10.1002/cctc.201901676
Ahmed S., Nelson P.A., Gallagher K.G., Susarla N., Dees D.W. // J. Power Sources. 2017. V. 342. P. 733. https://www.doi.org/10.1016/j.jpowsour.2016.12.069
Zhao H., Lam W.-Y.A., Sheng L., Wang L., Bai P., Yang Y., Ren D., Xu H., He X. // Adv. Energy Mater. 2022. V. 12. Iss. 16. P. 2103894. https://www.doi.org/10.1002/aenm.202103894
Liu S., Tian J., Zhang W. // Nanotechnology. 2021. V. 32. № 22. P. 222 001. https://www.doi.org/10.1088/1361-6528/abe25f
Valeev R.G., Beltiukov A.N., Alalykin A.S., Kriventsov V.V. // AIP Conference Proc. 2020. V. 2299. P. 080001. https://www.doi.org/10.1063/5.0030668
Валеев Р.Г., Алалыкин А.С. // Российские нанотехнологии. 2019. Т. 14. № 7–8. С. 58.
Валеев Р.Г., Сташкова В.В., Алалыкин А.С. // Журн. технической физики. 2020. Т. 90. Вып. 3. С. 494. https://www.doi.org/10.21883/JTF.2020.03.48938.301-19
Masuda H., Fukuda K. // Science. 1995. V. 268. Iss. 5216. P. 1466. https://www.doi.org/10.1126/science.268.5216.1466
Santos A., Formentin P., Pallares J., Ferre-Borrull J., Marsal L.F. // J. Electroanal. Chem. 2011. V. 655. Iss. 1. P. 73. https://www.doi.org/10.1016/j.jelechem.2011.02.005
Klementev K.V. // Nucl. Instrum. Methods Phys. Res. A. 2000. V. 448. Iss. 1–2. P. 299. https://www.doi.org/10.1016/S0168-9002(99)00710-X
Barbier A., Tuel A., Arčon I., Kodre A., Antonin M.G. // J. Catalysis. 2001. V. 200. P. 106. https://www.doi.org/10.1006/jcat.2001.3204
Dorovskikh S.I., Hairullin R.R., Sysoev S.V., Kriventsov V.V., Panin A.V., Shubin Y.V., Morozova N.B., Gelfond N.V., Korenev S.V. // Surf. Engineer. 2016. V. 32. Iss. 1. P. 8. https://www.doi.org/10.1179/1743294414Y.0000000424
Khodakov A.Y., Chu W., Fongarland P. // Chem. Rev. 2007. V. 107. № 5. P. 1692. https://www.doi.org/10.1021/cr050972v
Zakharov Y.A., Pugachev V.M., Kriventsov V.V., Popova A.N., Tolochko B.P., Bogomyakov A.S., Dodonov V.G., Karpushkina Y.V. // Bull. RAS: Phys. 2013. V. 77. № 2. P. 142. https://www.doi.org/10.3103/S106287381302041X
Moodley D.J. // On the deactivation of cobalt-based Fischer-Tropsch synthesis catalysts, Doctoral thesis, Schuit Institute of Catalysis, Laboratory of Inorganic Chemistry and Catalysis, Eindhoven University of Technology, Eindhoven, Netherlands, 2008.
Ильин А.П., Коршунов А.В., Толбанова Л.О. // Известия Томского политехнического университета. 2009. Т. 314. № 3. С. 35.
ICSD Database (2023) FIZ Karlsruhe GmbH, Germany. https://icsd.products.fiz-karlsruhe.de/