Corrosion resistance of zinc electrodeposited from acidic and alkaline electrolytes using pulse current
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Matilda Zemanová
Abstract
Corrosion resistance of zinc coatings was investigated in an accelerated corrosion test in a condensation chamber. Zinc was electrodeposited from alkaline and acidic electrolytes using direct current (DC) or pulse current (PC). The zinc coating was subsequently protected against corrosion with a chrome (III) layer. Morphology and structure of the coatings was investigated using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction analysis (XRD) before and after the corrosion test. Corrosion resistance of alkaline zinc coatings electrodeposited with DC and PC under test conditions was found to be comparable. The corrosion resistance of zinc coatings deposited from acidic electrolytes by PC was lower in comparison with corrosion resistance of zinc coatings deposited using DC.
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© 2009 Institute of Chemistry, Slovak Academy of Sciences
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Articles in the same Issue
- Magnetic nano- and microparticles in biotechnology
- Application of gas chromatography-mass spectrometry in research of traditional Chinese medicine
- Copper determination using ICP-MS with hexapole collision cell
- Reactivation of a palladium catalyst during glucose oxidation by molecular oxygen
- Robust stabilization of a chemical reactor
- Influence of production progress on the heavy metal content in flax fibers
- In vitro antifungal and antibacterial properties of thiodiamine transition metal complexes
- Synthesis, characterization, and antimicrobial activity of new benzoylthiourea ligands
- Investigation of DNA cleavage activities of new oxime-type ligand complexes and molecular modeling of complex-DNA interactions
- Characterization of mechanochemically synthesized lead selenide
- Hydroxyapatite modified with silica used for sorption of copper(II)
- Corrosion resistance of zinc electrodeposited from acidic and alkaline electrolytes using pulse current
- Ternary composites of multi-wall carbon nanotubes, polyaniline, and noble-metal nanoparticles for potential applications in electrocatalysis
- Synthesis of 2-[3-(trifluoromethyl)phenyl]furo[3,2-c]pyridine derivatives
- Key side products due to reactivity of dimethylmaleoyl moiety as amine protective group
- Comparative DFT study on the α-glycosidic bond in reactive species of galactosyl diphosphates
- Gas chromatographic retention times prediction for components of petroleum condensate fraction
- Gas chromatography with surface ionization detection of nitro pesticides
- Clean fuel-oriented investigation of thiophene oxidation by hydrogen peroxide using polyoxometalate as catalyst
- Aqueous foam stabilized by polyoxyethylene dodecyl ether
