A new approach to nickel electrolytic colouring of anodised aluminium
-
Matilda Zemanová
,
Marta Chovancová
Abstract
Energy dispersive X-ray spectroscopy and scanning electron microscopy were used to analyse nickel on anodic aluminium surfaces after stripping the anodic aluminium oxide. The metal was electroplated at the bottom of the pores of anodised aluminium during electrolytic colouring in solutions without (Watts) and with (citrate) complexing agents, respectively. A relation between the anodic-cathodic processes, changes of the structure and composition of the coating in dependence on the used solution were studied. A morphology study performed after stripping the anodic aluminium oxide revealed the crucial influence of the anodic process/cycle and the complexing agent on the nickel structure on the aluminium surface. Off-time of half-way rectified current influenced the nickel deposition in the pores of anodic alumina negatively.
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© 2008 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Polymer interfaces used in electrochemical DNA-based biosensors
- Integration of biomass drying with combustion/gasification technologies and minimization of emissions of organic compounds
- Application of hydrocolloids as baking improvers
- Simultaneous determination of 118 pesticide residues in Chinese teas by gas chromatography-mass spectrometry
- Modifications of spectrophotometric methods for total phosphorus determination in meat samples
- Modification and characterization of montmorillonite fillers used in composites with vulcanized natural rubber
- A new approach to nickel electrolytic colouring of anodised aluminium
- Solvent-free synthesis and properties of carboxymethyl starch fatty acid ester derivatives
- Reduction of silver nitrate by polyaniline nanotubes to produce silver-polyaniline composites
- Chemometrical analysis of computed QSAR parameters and their use in biological activity prediction
- Mild and efficient conversion of trifluoromethylarenes into tribromomethylarenes using boron tribromide
- 1,3-Dibromo-5,5-dimethylhydantoin as a useful reagent for efficient synthesis of 3,4-dihydropyrimidin-2-(1H)-ones under solvent-free conditions
- A new xanthone from the roots of Securidaca inappendiculata
