Electrochemical Synthesis of Ni/TiO2 Composite Coatings from Deep Eutectic Solvent and Electrocatalytic Characteristics of Deposits

Kinetics of electrodeposition of composite Ni/TiO 2 coatings was studied using the electrolyte based on a deep eutectic solvent (DES) containing choline chloride, ethylene glycol, water additive, and nickel chloride. Degussa P 25 nanopowder was used as a dispersed phase in the electrolyte (1–10 g/dm...

Full description

Saved in:
Bibliographic Details
Published in:Surface engineering and applied electrochemistry 2022-10, Vol.58 (5), p.440-450
Main Authors: Protsenko, V. S., Butyrina, T. E., Bogdanov, D. A., Korniy, S. A., Danilov, F. I.
Format: Article
Language:English
Subjects:
Chemical synthesis
Chlorides
Choline
Coatings
Codeposition
Electrodeposition
Electrolytes
Engineering
Ethylene glycol
Hydrogen evolution reactions
Machines
Manufacturing
Nickel
Oxidation
Processes
Solvents
Titanium
Titanium dioxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Kinetics of electrodeposition of composite Ni/TiO 2 coatings was studied using the electrolyte based on a deep eutectic solvent (DES) containing choline chloride, ethylene glycol, water additive, and nickel chloride. Degussa P 25 nanopowder was used as a dispersed phase in the electrolyte (1–10 g/dm 3 ). The developed electrolyte allows depositing composite coatings with the content of titanium dioxide reaching ~10 wt %. The electrolytic deposition of the composite was shown to obey Guglielmi’s kinetic model. The main parameters of codeposition of TiO 2 particles into a nickel matrix were determined in the framework of this kinetic model. The codeposition of titanium dioxide was found to inhibit the reaction of the nickel ions' discharge. Electrocatalytic properties of the prepared composite Ni/TiO 2 coatings were evaluated with respect to the hydrogen evolution reaction in an aqueous alkaline solution. A noticeable improvement in the electrocatalytic activity was observed when titanium dioxide particles were introduced into an electrodeposited nickel matrix.
ISSN:1068-3755
1934-8002
DOI:10.3103/S106837552205009X