Development of a Micropatterned Electrode for Studies of Zinc Electrodeposition PDF Download
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Author: Davor Peter Sutija
Publisher:
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Languages : en
Pages : 272
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Author: Davor Peter Sutija
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
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Author:
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Category :
Languages : en
Pages :
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A micropatterned electrode was prepared for the study of electrocrystallization. Using microphotolithography, in conjunction with evaporation and pulse electrodeposition of thin films, a set of artificially roughened electrodes with hemispherical surface features five microns in diameter was developed. Voltammetric studies were conducted to determine the best electrode material. Gold, platinum, and various carbon surfaces were evaluated for zinc nucleation density and hydrogen overpotential. Surface homogeneity was examined by both light and scanning electron microscopy. Gold was determined to possess the best combination of material properties: chemical inertness, low melting point, and a high work function allowing underpotential deposition of zinc which reduces the rate of hydrogen evolution. Stripping coulometry was employed to determine zinc limiting currents, and evaluate effective diffusion coefficients in concentrated zinc chloride solutions. Although the method worked well for dilute zinc chloride and copper sulfate solutions, it failed at higher current densities; the emergence of surface roughness obscured actual limiting current plateaus.
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Category : Power resources
Languages : en
Pages : 616
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Author: Madhav Datta
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Category : Science
Languages : en
Pages : 420
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Author: Kenneth Guy Jordan
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Category :
Languages : en
Pages : 536
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Category : Power resources
Languages : en
Pages : 652
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Author: Maryam Shapouri Shapouri Ghazvini
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ISBN: 9783869485607
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Languages : en
Pages :
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Author: Uziel Landau
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Category : Electric batteries
Languages : en
Pages :
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Author: Milan Paunovic
Publisher: The Electrochemical Society
ISBN: 9781566771801
Category : Science
Languages : en
Pages : 666
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Author: Jana Dogel
Publisher:
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Category :
Languages : en
Pages : 121
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