Doctoral Dissertations

Abstract

"The effects of temperatures from 0°C to 50°C and current densities from 10 asf to 200 asf on the current efficiency in the electrolysis of pure zinc sulfate solutions (65 gpl Zn⁺⁺ - 200 gpl H₂SO₄) were determined. Pure platinum and platinum coated titanium anodes were used with an aluminum cathode. Platinum anodes were not inert at certain combinations of temperature and current density, and platinum acted as a low overvoltage impurity causing resolution of the cathode deposit. Orientation of the zinc deposits was found to vary with temperature and to have a distinct relationship to current efficiency. Preconditioning of lead and lead alloy anodes was investigated as a possible means of producing a stable anode. Electrodes were conditioned in fluoride solutions and compared to anodes conditioned in H₂SO₄ solutions under similar circumstances. The scanning electron microscope was utilized to study the morphology of the anodic coating. X-ray and potential decay data were employed to determine the phases present on the electrode surface"--Abstract, page ii.

Advisor(s)

O'Keefe, T. J. (Thomas J.)

Committee Member(s)

James, William Joseph
Leighley, Hollis P.
Kisslinger, Fred, 1919-2010
Straumanis, Martin E., 1898-1973
Clark, John Beverley

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Metallurgical Engineering

Sponsor(s)

National Science Foundation (U.S.)
American Zinc Company

Publisher

University of Missouri--Rolla

Publication Date

1970

Pagination

xi, 144 pages

Note about bibliography

Includes bibliographical references (pages 140-143).

Rights

© 1970 Ernest Ray Cole , Jr., All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Subject Headings

Zinc sulfateElectrolysisAnodesCathodes

Thesis Number

T 2399

Print OCLC #

6022856

Electronic OCLC #

852902944

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