Enhanced Mass Transport In Electrogalvanizing Systems By Hydrogen Evolution

Abstract

The effect of hydrogen evolution on mass transport during electrogalvanizing was evaluated for a vertical electrode by using a electrochemical tracer. The potentiodynamically measured limiting current of a cadmium tracer was compared with those obtained by the codeposition method at various current densities. The effects of pH on the hydrogen evolution and the mass transfer rate during electrogalvanizing were also determined. The Sherwood number was calculated and compared with that predicted by natural convection. It has been found that the mass transport was mainly enhanced by natural convection at current densities less than 25 mA cm-2 and by simultaneous hydrogen evolution at relatively higher current densities. © 1988.

Department(s)

Materials Science and Engineering

Comments

National Science Foundation, Grant HO256001

International Standard Serial Number (ISSN)

0013-4686

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Elsevier; International Society of Electrochemistry (ISE), All rights reserved.

Publication Date

01 Jan 1988

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