Nanostructural analysis of mirror-bright zinc coatings
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The zinc coatings electrode posited from solution containing dextrin/salicyl aldehyde mixture are examined by the scanning tunneling microscopy (STM). It is shown that mirror brightness of these zinc deposits is associated with flat and mutually parallel hexagonal zinc crystals which are smooth at the atomic level. The mechanism of zinc electrodeposition with these additives is examined by the use of a possibility of STM software measurements based on root-mean-square roughness analysis of metal surfaces and known as scaling analysis. It is proposed that the zinc growth in the presence of these additives follows the Edwards-Wilkinson model.
Keywords:electrodeposition / zinc / additives / scanning tunneling microscopy
Source:Russian Journal of Electrochemistry, 2006, 42, 10, 1121-1126
- 8th International Frumkin Symposium on Kinetics of Electrode Processes, Oct 18-22, 2005, Moscow, Russia