Article 19413

Title of the article

ELECTRODEPOSITION OF ZINC COATINGS IN THE CONTROLLED POTENTIAL MODE
OF IMPULSE ELECTROLYSIS FROM LOW-TOXIC LACTIC ELECTROLYTE 

Authors

Kireev Sergey Yur'evich, Candidate of engineering sciences, associate professor, sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia), Sergey58_79@mail.ru
Perelygin Yuriy Petrovich, Doctor of engineering sciences, professor, head of sub-department of chemistry,
dean of the Faculty of natural sciences, Penza State University (40 Krasnaya street, Penza, Russia), pyp@pnzgu.ru
Kireeva Svetlana Nikolaevna, Candidate of engineering sciences, associate professor, sub-department of chemistry, Penza State University (40 Krasnaya street, Penza, Russia), pyp@pnzgu.ru
Vlasov Dmitriy Yur'evich, Postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia), pyp@pnzgu.ru 

Index UDK

544.654.2 

Abstract

Background. In order to intensify and decrease ecological hazard the authors examined the process of electrodeposition of zinc coatings in the controlled potental impulse electrolysis from low-toxic lactic electrolyte.
Materials and methods. Electrode polarization was realized with the help of the IPC-Pro potentiostat. The researchers used galvanostatic and potentiostatic regimes of impulsing electrolysis. The authors suggest a technique of defining the electric charge that passed through an electrochemical system in the process of using impulse current.
Results. On the basis of the analysis of experimental data the researchers revealed the dependences of cathodic current efficiency of zinc and the deposition rate on the values of potentials of current impulses, frequency, porosity, and ion density of zinc, lactic acid and hydrions (pH) in the solution.
Conclusions. The article shows the advantages of the chosen regime in comparison with galvanostatic impulse electrolysis and a stationary electrolysis. On the basis of the researches the authors suggest a composition of electrolyte and regimes of formation of qualitative galvanizations by zinc at the rate of 17–78.5 microns/hour. 

Key words

zinc coatings, potentiostatic pulse electrolysis, lactic acid. 

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References

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Дата создания: 29.08.2014 19:32
Дата обновления: 01.09.2014 09:50