Change in the physical characteristics of the dendritic zinc deposits in the stationary and pulsating electrolysis / Ostanina T. N.,Rudoy V. M.,Nikitin V. S.,Darintseva A. B.,Demakov S. L. // JOURNAL OF ELECTROANALYTICAL CHEMISTRY. - 2017. - V. 784, l. . - P. 13-24.

ISSN/EISSN:

1572-6657 / 1873-2569

Type:

Article

Abstract:

The growth process of dendritic zinc deposits is investigated on rod electrode in stationary and pulsating modes of electrolysis in this study. The data on changes in physical properties (density, porosity, and specific surface area) of loose deposits in the electrolysis process are obtained. It is found that during the pauses of pulsating modes, duration of which was 15 and 30 s, there is an increase in the discharging ions concentration in the deposit depth. The change in concentration in pulsating galvanostatic mode is due to diffusion, whereas in potentiostatic mode it is due to the dissolution of dendrites in contact with the depleted solution. The decrease in the diffusion limitations leads to a decrease in the deposits elongation rate and an increase in its density. The SEM method shows that the transition from stationary to pulsating modes of electrolysis changes the loose deposit particles morphology. (C) 2016 Elsevier B.V. All rights reserved.

Author keywords:

Loose zinc deposit; Density; Specific surface area; Pulsating electrolysis; Growth dynamics HYDROGEN CODEPOSITION; COPPER; SURFACE; GROWTH; ELECTRODES; MORPHOLOGY; IMPEDANCE; MECHANISM; REGIME

DOI:

10.1016/j.jelechem.2016.11.063

Web of Science ID:

ISI:000392353400003

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN 1
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
EISSN	1873-2569
Keywords-Plus	HYDROGEN CODEPOSITION; COPPER; SURFACE; GROWTH; ELECTRODES; MORPHOLOGY; IMPEDANCE; MECHANISM; REGIME
Research-Areas	Chemistry; Electrochemistry
Web-of-Science-Categories	Chemistry, Analytical; Electrochemistry
Author-Email	nikitin.vya4eslaw2014@yandex.ru
Funding-Acknowledgement	Act 211 Government of the Russian Federation {[}02.A03.21.0006]
Funding-Text	The work was supported by Act 211 Government of the Russian Federation, contract no 02.A03.21.0006.
Number-of-Cited-References	36
Usage-Count-Since-2013	1
Journal-ISO	J. Electroanal. Chem.
Doc-Delivery-Number	EI2XQ