Determination of the surface of dendritic electrolytic zinc powders and evaluation of its fractal dimension / Ostanina T. N.,Rudoi V. M.,Nikitin V. S.,Darintseva A. B.,Zalesova O. L.,Porotnikova N. M. // RUSSIAN JOURNAL OF NON-FERROUS METALS. - 2016. - V. 57, l. 1. - P. 47-51.

ISSN/EISSN:

1067-8212 / 1934-970X

Type:

Article

Abstract:

The area of dendritic deposits of zinc deposits prepared by electrolysis from zincate electrolyte, which contained 0.3 mol/dm(3) ZnO and 4 mol/dm(3) NaOH, is determined. The application of electrochemical methods has made it possible to measure the in situ surface without removing the dendrite deposit from the cathode. The specific deposit surface found using chronopotentiometry is 0.144 +/- 0.002 m(2)/g, while according to the result of impedance spectroscopy it is 11.61 +/- 0.14 m(2)/g. The surface of powders prepared from dendrite deposits is 21.26 +/- 0.62 m(2) according to the data of the BET method. It is shown that the difference in these values is associated with the resolving ability of methods applied. It is established that the surface of dendritic deposits possesses fractal properties. The fractal dimension of the specific surface is calculated and the results of measurements performed by different methods are compared using the scaling relationship.

Author keywords:

dendrites; zinc; specific surface; fractal dimension; chronopotentiometry; impedance spectroscopy IMPEDANCE

DOI:

10.3103/S1067821216010120

Web of Science ID:

ISI:000376425500008

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	ALLERTON PRESS INC
Address	18 WEST 27TH ST, NEW YORK, NY 10001 USA
Language	English
EISSN	1934-970X
Keywords-Plus	IMPEDANCE
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	ostni@mail.ru nikitin-viachieslav@mail.ru n.porotnikova@mail.ru
ResearcherID-Numbers	Porotnikova, Natalia/J-7625-2016
Funding-Acknowledgement	Russian Foundation for Basic Research {[}11-03-00226]
Funding-Text	This study was supported by the Russian Foundation for Basic Research, project no. 11-03-00226.
Number-of-Cited-References	11
Usage-Count-Since-2013	6
Journal-ISO	Russ. J. Non-Ferrous Metals
Doc-Delivery-Number	DM5YC