NDLI: Fabrication and electrochemical characterization of Zn–halloysite nanotubes composite coatings

Content Provider	Royal Society of Chemistry (RSC)
Author	Venkatesha, T. V. Ranganatha, S.
Copyright Year	2014
Abstract	Zinc–halloysite nanotube (HNT) composite coatings through electrodeposition technique were successfully fabricated on mild steel substrate. As a comparison, pure zinc coating was also prepared. The composites were deposited in the presence of the surfactants cetyltriammonium bromide (CTAB) and sodium lauryl sulfate (SLS). The effect of the addition of nanoparticles and surfactants on the deposition, crystal structure, texture, surface morphology and electrochemical corrosion behavior were investigated. For the characterization of the electrodeposits, techniques such as X-ray diffraction (XRD) and scanning electron microscopy (SEM) coupled with energy dispersive X-ray analysis were used. Both the additives HNTs and surfactants polarize the reduction process and thus influence the deposition process, surface nature and electrochemical properties. Electrochemical experiments, such as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) studies, carried out in 3.5% NaCl solution show higher corrosion resistance by HNT incorporated coating, which was fabricated in the presence of CTAB. Microhardness of the deposits was evaluated and the composite with higher incorporation of nanoparticles in the presence of CTAB exhibited the highest value.
Starting Page	31230
Ending Page	31238
Page Count	9
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	4
Issue Number	59
Journal	RSC Advances
DOI	10.1039/c4ra02455a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Voltammetry Electroplating Scanning electron microscope Zinc Bromide Sodium dodecyl sulfate X-ray crystallography Corrosion Hà Nội T&T F.C. Electrochemistry Carbon steel Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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