Efficiency definition of the deposition process of electrochromic Ni(OH)2-PVA films formed on a metal substrate from concentrated solutions





electrochromism, electrodeposition, nickel hydroxide, polyvinyl alcohol, nickel nitrate, current efficiency


Electrochemical devices based on nickel hydroxide electrodes are used in different areas. The main ones are chemical current sources, variable transparency “smart” windows, devices for carrying out electrocatalytic reactions, sensors for determining various substances. In this regard, methods of nickel hydroxide synthesis are of great interest, especially those that allow forming nickel hydroxide directly on the surface of electrodes. One of these methods is electrochemical deposition with cathodic current polarization.

The available information on nickel hydroxide synthesis from nickel solutions was considered. It was shown that the available data mainly covered information on dilute solutions from 0.01 to 0.25 mol/L Ni(NO3)2. In addition, no comparison was found in the literature for the efficiency of the cathodic formation of Ni(OH)2 at different concentrations of nickel nitrate.

To eliminate the lack of information, the dependence of the current efficiency on the concentration of nickel nitrate in the electrodeposition solution was determined at a constant cathode current density of 0.625 mA/cm2. The resulting dependence decreased nonlinearly with increasing concentration. The nickel hydroxide deposit formed in this case had an X-ray amorphous structure, and it depended little on the Ni(NO3)2 concentration. In addition, the current efficiency reached zero at concentrations of 1.5 mol/L Ni(NO3)2 and higher. However, with polyvinyl alcohol in the solution and at Ni(NO3)2 concentrations of 1.5 and 2 mol/L, electrochemically and electrochromically active Ni(OH)2 films were deposited. The current efficiency calculated indirectly for 1.5 and 2 mol/L Ni(NO3)2 solutions was 3.2 and 2.3 %, respectively. Thus, it was concluded that polyvinyl alcohol affected the mechanism of nickel hydroxide electrodeposition from aqueous solutions of nickel nitrate.

Author Biographies

Valerii Kotok, University of Chemical Technology

PhD, Associate Professor

Department of Processes, Apparatus and General Chemical Technology

Vadym Kovalenko, Ukrainian State University of Chemical Technology

PhD, Associate Professor

Department of Analytical Chemistry and Chemical Technology of Food Additives and Cosmetics

Rovil Nafeev, State University of Telecommunications

PhD, Associate Professor

Department of Physics

Volodymyr Verbitskiy, National Pedagogical Dragomanov University; National Ecological and Naturalistic Center for Student Youth

Doctor of Pedagogical Sciences, Professor

Department of Medical, Biological and Valeological Basics of Life and Health Protection


Olena Melnyk, Sumy National Agrarian University

PhD, Associate Professor, Senior Researcher

Research Coordination Office

Iryna Plaksiienko, Poltava State Agrarian University

PhD, Associate Professor

Department of Ecology, Sustainable Nature Management and Environmental Protection

Igor Kovalenko, Sumy National Agrarian University

Doctor of Biological Sciences, Professor, Dean of Faculty

Department of Ecology and Botany

Faculty of Agrotechnology and Nature Management

Viktoriia Stoliarenko, Kryvyi Rih State Pedagogical University

PhD, Associate Professor

Department Chemistry and Methods of its Teaching

Valerii Plaksiienko, Poltava State Agrarian University

Doctor of Economic Sciences, Professor

Department of Accounting and Economic Control

Iryna Zamrii, State University of Telecommunications

PhD, Associate Professor

Department of Higher Mathematics, Mathematical Modeling and Physics


  1. Zayani, W., Azizi, S., El‐Nasser, K. S., Othman Ali, I., Molière, M., Fenineche, N. et. al. (2021). Electrochemical behavior of a spinel zinc ferrite alloy obtained by a simple sol-gel route for Ni-MH battery applications. International Journal of Energy Research, 45 (4), 5235–5247. doi: https://doi.org/10.1002/er.6140
  2. Yang, J., Chen, J., Wang, Z., Wang, Z., Zhang, Q., He, B. et. al. (2021). High‐Capacity Iron‐Based Anodes for Aqueous Secondary Nickel–Iron Batteries: Recent Progress and Prospects. ChemElectroChem, 8 (2), 273–273. doi: https://doi.org/10.1002/celc.202001556
  3. Pourabdollah, K. (2021). Fouling and corrosion of electrode plates in nickel cadmium batteries. Engineering Failure Analysis, 130, 105797. doi: https://doi.org/10.1016/j.engfailanal.2021.105797
  4. Peng, Z., Yang, C., Zhao, Q., Liang, F., Yun, S., Liu, R. et. al. (2022). Ultra-dispersed nickel–cobalt sulfides on reduced graphene oxide with improved power and cycling performances for nickel-zinc batteries. Journal of Colloid and Interface Science, 607, 61–67. doi: https://doi.org/10.1016/j.jcis.2021.08.193
  5. Jiang, T., Chen, W. (2021). Nickel hydrogen gas batteries: From aerospace to grid-scale energy storage applications. Current Opinion in Electrochemistry, 30, 100859. doi: https://doi.org/10.1016/j.coelec.2021.100859
  6. Li, J., Wang, L., Yang, Y., Wang, B., Duan, C., Zheng, L. et. al. (2021). Rationally designed NiMn LDH@NiCo2O4 core–shell structures for high energy density supercapacitor and enzyme-free glucose sensor. Nanotechnology, 32 (50), 505710. doi: https://doi.org/10.1088/1361-6528/ac2764
  7. Shi, M., Zhao, M., Jiao, L., Su, Z., Li, M., Song, X. (2021). Novel Mo-doped nickel sulfide thin sheets decorated with Ni–Co layered double hydroxide sheets as an advanced electrode for aqueous asymmetric super-capacitor battery. Journal of Power Sources, 509, 230333. doi: https://doi.org/10.1016/j.jpowsour.2021.230333
  8. Kotok, V. A., Kovalenko, V. L. (2019). Non-Metallic Films Electroplating on the Low-Conductivity Substrates: The Conscious Selection of Conditions Using Ni(OH)2 Deposition as an Example. Journal of The Electrochemical Society, 166 (10), D395–D408. doi: https://doi.org/10.1149/2.0561910jes
  9. Wang, W., Li, Z., Yu, Z., Su, G. (2021). The stabilization of Ni(OH)2 by In2O3 rods and the electrochromic performance of Ni(OH)2/In2O3-rod composite porous film. Thin Solid Films, 734, 138839. doi: https://doi.org/10.1016/j.tsf.2021.138839
  10. Cibrev, D., Jankulovska, M., Lana-Villarreal, T., Gómez, R. (2014). Potentiostatic Reversible Photoelectrochromism: An Effect Appearing in Nanoporous TiO2/Ni(OH)2 Thin Films. ACS Applied Materials & Interfaces, 6 (13), 10304–10312. doi: https://doi.org/10.1021/am5017396
  11. Fleischmann, M., Korinek, K., Pletcher, D. (1972). The oxidation of hydrazine at a nickel anode in alkaline solution. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 34 (2), 499–503. doi: https://doi.org/10.1016/s0022-0728(72)80425-x
  12. Wang, H., Lu, L., Subramanian, P., Ji, S., Kannan, P. (2021). Co, Fe-ions intercalated Ni(OH)2 network-like nanosheet arrays as highly efficient non-noble catalyst for electro-oxidation of urea. International Journal of Hydrogen Energy, 46 (69), 34318–34332. doi: https://doi.org/10.1016/j.ijhydene.2021.08.022
  13. Ganesh, V., Farzana, S., Berchmans, S. (2011). Nickel hydroxide deposited indium tin oxide electrodes as electrocatalysts for direct oxidation of carbohydrates in alkaline medium. Journal of Power Sources, 196 (23), 9890–9899. doi: https://doi.org/10.1016/j.jpowsour.2011.08.031
  14. Ganesh, V., Latha Maheswari, D., Berchmans, S. (2011). Electrochemical behaviour of metal hexacyanoferrate converted to metal hydroxide films immobilized on indium tin oxide electrodes—Catalytic ability towards alcohol oxidation in alkaline medium. Electrochimica Acta, 56 (3), 1197–1207. doi: https://doi.org/10.1016/j.electacta.2010.11.015
  15. Shang, K., Zhu, J., Meng, X., Cheng, Z., Ai, S. (2012). Multifunctional Fe3O4 core/Ni–Al layered double hydroxides shell nanospheres as labels for ultrasensitive electrochemical immunoassay of subgroup J of avian leukosis virus. Biosensors and Bioelectronics, 37 (1), 107–111. doi: https://doi.org/10.1016/j.bios.2012.04.035
  16. Guo, X., Deng, H., Fu, Q. (2020). An unusual decrease in dielectric constant due to the addition of nickel hydroxide into silicone rubber. Composites Part B: Engineering, 193, 108006. doi: https://doi.org/10.1016/j.compositesb.2020.108006
  17. Jayashree, R. S., Kamath, P. V. (2001). Nickel hydroxide electrodeposition from nickel nitrate solutions: mechanistic studies. Journal of Power Sources, 93 (1-2), 273–278. doi: https://doi.org/10.1016/s0378-7753(00)00568-1
  18. Kotok, V. A., Kovalenko, V. L., Kovalenko, P. V., Solovov, V. A., Deabate, S., Mehdi, A. et. al. (2017). Advanced electrochromic Ni(OH)2/PVA films formed by electrochemical template synthesis. ARPN Journal of Engineering and Applied Sciences, 12 (13), 3962–3977. Available at: https://www.researchgate.net/publication/318452605_Advanced_electrochromic_NiOh2PVA_films_formed_by_electrochemical_template_synthesis
  19. Hall, D. S., Lockwood, D. J., Poirier, S., Bock, C., MacDougall, B. R. (2012). Raman and Infrared Spectroscopy of α and β Phases of Thin Nickel Hydroxide Films Electrochemically Formed on Nickel. The Journal of Physical Chemistry A, 116 (25), 6771–6784. doi: https://doi.org/10.1021/jp303546r
  20. Tan, Y., Srinivasan, S., Choi, K.-S. (2005). Electrochemical Deposition of Mesoporous Nickel Hydroxide Films from Dilute Surfactant Solutions. Journal of the American Chemical Society, 127 (10), 3596–3604. doi: https://doi.org/10.1021/ja0434329
  21. Fu, G., Hu, Z., Xie, L. et. al. (2009). Electrodeposition of nickel hydroxide films on nickel foil and its electrochemical performances for supercapacitor. International Journal of Electrochemical Science, 4 (8), 1052–1062. Available at: http://www.electrochemsci.org/papers/vol4/4081052.pdf
  22. Kim, G.-B., Ganesh Kumar, V., Bae, S.-W., Lee, J.-S. (2006). Contraction of Alpha-nickel Hydroxide Layers by Excess Coulombic Attraction of Anions. Journal of the Korean Chemical Society, 50 (2), 141–152. doi: https://doi.org/10.5012/jkcs.2006.50.2.141
  23. Jayashree, R. S., Vishnu Kamath, P. (1999). Factors governing the electrochemical synthesis of α-nickel (II) hydroxide. Journal of Applied Electrochemistry, 29, 449–454. doi: https://doi.org/10.1023/A:1003493711239
  24. Mortimer, R. J., Sialvi, M. Z., Varley, T. S., Wilcox, G. D. (2014). An in situ colorimetric measurement study of electrochromism in the thin-film nickel hydroxide/oxyhydroxide system. Journal of Solid State Electrochemistry, 18 (12), 3359–3367. doi: https://doi.org/10.1007/s10008-014-2618-5
  25. Kotok, V., Kovalenko, V. (2017). The properties investigation of the faradaic supercapacitor electrode formed on foamed nickel substrate with polyvinyl alcohol using. Eastern-European Journal of Enterprise Technologies, 4 (12 (88)), 31–37. doi: https://doi.org/10.15587/1729-4061.2017.108839
  26. Kotok, V. A., Malyshev, V. V., Solovov, V. A., Kovalenko, V. L. (2017). Soft Electrochemical Etching of FTO-Coated Glass for Use in Ni(OH)2-Based Electrochromic Devices. ECS Journal of Solid State Science and Technology, 6 (12), P772–P777. doi: https://doi.org/10.1149/2.0071712jss
  27. Kalu, E. E., Nwoga, T. T., Srinivasan, V., Weidner, J. W. (2001). Cyclic voltammetric studies of the effects of time and temperature on the capacitance of electrochemically deposited nickel hydroxide. Journal of Power Sources, 92 (1-2), 163–167. doi: https://doi.org/10.1016/s0378-7753(00)00520-6
  28. Kotok, V., Kovalenko, V. (2017). The electrochemical cathodic template synthesis of nickel hydroxide thin films for electrochromic devices: role of temperature. Eastern-European Journal of Enterprise Technologies, 2 (11 (86)), 28–34. doi: https://doi.org/10.15587/1729-4061.2017.97371
  29. Kotok, V. A., Kovalenko, V. L., Zima, A. S., Kirillova, E. A. Burkov, A. A., Kobylinska, N. G. et. al. (2019). Optimization of electrolyte composition for the cathodic template deposition of Ni(OH)2-based electrochromic films on FTO glass. ARPN Journal of Engineering and Applied Sciences, 14 (2), 344–353. Available at: http://www.arpnjournals.org/jeas/research_papers/rp_2019/jeas_0119_7562.pdf
  30. Kotok, V., Kovalenko, V. (2019). Optimization of the deposition conditions for Ni(OH)2 films for electrochromic elements of “smart” windows. Eastern-European Journal of Enterprise Technologies, 2 (5 (98)), 35–40. doi: https://doi.org/10.15587/1729-4061.2019.162572
  31. Hall, D. S., Bock, C., MacDougall, B. R. (2013). The Electrochemistry of Metallic Nickel: Oxides, Hydroxides, Hydrides and Alkaline Hydrogen Evolution. Journal of The Electrochemical Society, 160 (3), F235–F243. doi: https://doi.org/10.1149/2.026303jes
  32. Kotok, V., Kovalenko, V., Nafeev, R., Verbitskiy, V., Melnyk, O., Plaksiienko, I. et. al. (2021). A study of physico-chemical characteristics of electrochromic Ni(OH)2-PVA films on fto glass with different deposition duration. Eastern-European Journal of Enterprise Technologies, 5 (12 (113)), 39–46. doi: https://doi.org/10.15587/1729-4061.2021.242853
  33. Kotok, V., Kovalenko, V., Nafeev, R., Verbitskiy, V., Lominoga, E., Melnyk, O. et. al. (2021). Determination of the effect of exposure conducted in KOH solutions at different temperatures on the properties of electrochromic Ni(OH)2-PVA films. Eastern-European Journal of Enterprise Technologies, 4 (6 (112)), 60–66. doi: https://doi.org/10.15587/1729-4061.2021.239151
  34. Liu, A., Zhu, Y., Li, K., Chu, D., Huang, J., Li, X. et. al. (2018). A high performance p-type nickel oxide/cuprous oxide nanocomposite with heterojunction as the photocathodic catalyst for water splitting to produce hydrogen. Chemical Physics Letters, 703, 56–62. doi: https://doi.org/10.1016/j.cplett.2018.05.020
  35. Berezovska, I. S., Yanishpolskii, V. V., Tertykh, V. A., Burmistr, M. V., Sukhyy, K. M. (2006). Role of ionene in composition of porous structure of template-synthesized silicas. Journal of Thermal Analysis and Calorimetry, 86 (1), 93–96. doi: https://doi.org/10.1007/s10973-006-7579-1




How to Cite

Kotok, V., Kovalenko, V., Nafeev, R., Verbitskiy, V., Melnyk, O., Plaksiienko, I., Kovalenko, I., Stoliarenko, V., Plaksiienko, V., & Zamrii, I. (2021). Efficiency definition of the deposition process of electrochromic Ni(OH)2-PVA films formed on a metal substrate from concentrated solutions . Eastern-European Journal of Enterprise Technologies, 6(12 (114), 27–33. https://doi.org/10.15587/1729-4061.2021.246511



Materials Science