Synergistic effect of additives on bright nanocrystalline zinc electrodeposition

The influence of additives like cetyltrimethylammonium bromide (CTAB) and Ethyl vanillin (EV) on zinc electrodeposition from acid sulfate bath was systematically investigated by scanning electron microscopy, X-ray diffraction, and voltammetric techniques. The result shows the existence of interactio...

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Bibliographic Details
Published inJournal of applied electrochemistry Vol. 41; no. 1; pp. 39 - 49
Main Authors Nayana, K. O., Venkatesha, T. V., Praveen, B. M., Vathsala, K.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 2011
Subjects
Chemistry
Chemistry and Materials Science
Deposition
Diffraction
Electrochemistry
Electrodeposition
Industrial Chemistry/Chemical Engineering
Ion diffusion
Nanocrystals
Nucleation
Original Paper
Physical Chemistry
Synergistic effect
Zinc
Electrodeposition
Synergistic effect
Nucleation mechanism
Ethyl vanillin
Nanocrystalline
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Summary:The influence of additives like cetyltrimethylammonium bromide (CTAB) and Ethyl vanillin (EV) on zinc electrodeposition from acid sulfate bath was systematically investigated by scanning electron microscopy, X-ray diffraction, and voltammetric techniques. The result shows the existence of interaction between CTAB and EV. They exhibited synergistic effect to produce bright nanocrystalline zinc coating on steel surface. The combined effects of these two compounds on deposition overpotential, hydrogen evolution, zinc ion diffusion, and surface coverage were discussed. The morphological and orientational changes occurred in electrodeposit were presented. Also the nucleation mechanism exhibited by zinc during electrodeposition in the presence of additive was examined.
Bibliography:ObjectType-Article-1
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ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-010-0205-8