Effect of the orientation of the initially formed grains on the final morphology of electrodeposited lead
| Autor: | R Evica Ivanovic, Goran Branković, D Nebojsa Nikolic, I Konstantin Popov |
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| Rok vydání: | 2014 |
| Předmět: |
lead
Materials science Morphology (linguistics) Scanning electron microscope Diffusion General Chemistry Electrochemistry Characterization (materials science) crystal lcsh:Chemistry Crystal Orientation (vector space) Diffusion layer Crystallography scanning electron microscope (SEM) lcsh:QD1-999 Chemical engineering electrodeposition cylindrical diffusion spherical diffusion |
| Zdroj: | Journal of the Serbian Chemical Society JOURNAL OF THE SERBIAN CHEMICAL SOCIETY Journal of the Serbian Chemical Society, Vol 79, Iss 8, Pp 993-1005 (2014) |
| Popis: | The processes of Pb electrodeposition in the diffusion control were examined by the scanning electron microscopic (SEM) analysis of the formed crystals. Orientation of grains of hexagonal shape formed in the initial stage of electrodeposition strongly affected the final morphology of Pb crystals. Formation of Pb crystals of the different shape from the same initial shape was discussed by the effect of orientation of initially formed grains on the type of diffusion control. The spherical diffusion layer was formed around the tip of the hexagonal shaped grain oriented by the tip towards the bulk of solution leading to formation of elongated crystals in the growth process. On the other hand, the cylindrical type of diffusion was responsible for growth of hexagonal shaped grains oriented by the lateral side towards the bulk of solution. Pb crystals with well defined sides parallel to the surface area of macroelectrode were formed by this type of diffusion. [{Projekat Ministarstva nauke Republike Srbije, br. 172046: Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies] |
| Databáze: | OpenAIRE |
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