Zn–TiO2 composite films prepared by pulsed electrodeposition

Gomes, A.; Pereira, M. I. da Silva; Mendonça, M.H.; Costa, F.M.

doi:10.1007/s10008-004-0573-2

Cited by 48 publications

(31 citation statements)

References 14 publications

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“…A variety of nanosized particles, ranging from 4 nm to 800 nm diameters, have been successfully incorporated into metallic electrodeposits (Low et al, 2006). These include oxides such as Al 2 O 3 , ZrO 2 , TiO 2 and Cr 2 O 3 or carbides like SiC, WC, TiC or nitrides like Si 3 N 4 (Bahrololoom & Sani 2005;Jung et al, 2009;Srivastava et al, 2010;Krishnaveni et al, 2008;Stroumbouli et al, 2005;Gay et al, 2001).The metals mostly used are copper and nickel (Low el al., 2006) however other metals like zinc, silver and, alloys have been used (Gomes et al, 2005;Gay et al, 2001;Tulio & Carlos 2009;Muller et al, 2002;Tian & Cheng, 2007). The most studied system has been the Ni-SiC due to its potential technological applications (Low et al, 2006;Hovestad & Janssen 1995;Zimmermann et al, 2002;Hou et al, 2002;Garcia et al 2001;Gyftou et al, 2005;Lekka et al, 2005).…”

Section: General Aspectsmentioning

confidence: 99%

“…With the increasing availability of nanoparticles, the interest of the low-cost and lowtemperature composite electroplating is continuously growing, with the major challenge being the achievement of high co-deposition rates and homogenous distribution of the particles in the metallic matrix (Gyftou et al, 2008). Fundamentally, the electrocodeposition process and hence the structure, the morphology and the properties of the composite coatings is affected by the electrodeposition parameters like the electrolysis conditions (composition and agitation of the electrolytic bath, presence of additives, temperature, pH), the electrical profile (Gomes et al, 2005;Fustes et al, 2008) and the particle properties (type, size, shape, surface charge, concentration and dispersion in the bath) (Maurin & Lavanant, 1995;Hovestad & Janssen 1995;Kantepozidou et al, 1996).…”

Section: General Aspectsmentioning

confidence: 99%

“…The particles distribution gradient in the metallic deposit can be intentionally achieved in a single electrolyte bath by the simple alteration of the applied current density or potential and/or by modulation of the particles hydrodynamics and concentration in the solution (Low et al, 2006). AFM analysis provides available surface morphology characterization at the nanometric scale and due to high resolution imaging, surface roughness values can be estimated (Gomes et al, 2005;McCormack et al, 2003). Tu et al have investigated by XPS the interaction between Al 2 O 3 or SiO 2 nanoparticles and a nickel metal matrix.…”

Section: Wwwintechopencom Electrodeposition Of Metal Matrix Nanocommentioning

confidence: 99%

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Electrodeposition of Metal Matrix Nanocomposites: Improvement of the Chemical Characterization Techniques

Gomes¹,

Pereira²,

Pereiro³

2011

Advances in Nanocomposites - Synthesis, Characterization and Industrial Applications

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Section: General Aspectsmentioning

confidence: 99%

Section: General Aspectsmentioning

confidence: 99%

Section: Wwwintechopencom Electrodeposition Of Metal Matrix Nanocommentioning

confidence: 99%

See 1 more Smart Citation

Electrodeposition of Metal Matrix Nanocomposites: Improvement of the Chemical Characterization Techniques

Gomes¹,

Pereira²,

Pereiro³

2011

Advances in Nanocomposites - Synthesis, Characterization and Industrial Applications

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“…Using these methods, a variety of nanosized particles (typically with spherical shape), ranging from 4 to 800 nm diameters, have been successfully incorporated into zinc deposits. These include silicon dioxide (SiO 2 ) [1,3] titanium dioxide (TiO 2 ) [4][5][6] and aluminum oxide (Al 2 O 3 ) [7,8].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposited Zn–TiO2 nanocomposite coatings and their corrosion behavior

et al. 2010

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The present paper aims to investigate the electrodeposition on steel substrate and the corrosion behavior of Zn-TiO 2 nanocomposite coatings. Zn-TiO 2 composite coatings were electrodeposited on OL 37 steel from an electrolyte containing ZnCl 2 , KCl, HBO 3 (pH 5.7) brightening agents and dispersed nanosized TiO 2 . Corrosion measurements were performed in 0.2 g L -1 (NH 4 ) 2 SO 4 solution (pH 3) by using electrochemical methods (open-circuit potential measurements, polarization curves, electrochemical impedance spectroscopy). The results of electrochemical measurements were corroborated with those obtained by using non-electrochemical methods (X-ray diffraction, atomic force microscopy and scanning electron microscopy). The results indicate that the composite coatings exhibit higher corrosion resistance as compared to pure Zn coatings and a non-linear dependence of their polarization resistance on TiO 2 concentration in the plating bath was found. The importance of TiO 2 nature and concentration regarding the properties of the composite coatings was demonstrated.

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“…The nanocomposite coatings were prepared by the occlusion electrodeposition method, where high surface area TiO 2 nanoparticles are incorporated within the metal matrix, while simultaneously reduction of the metal ions occurs at the interface electrode solution [4,5]. This method has been selected for its versatility and simplicity.…”

Section: Introductionmentioning

confidence: 99%

Annealed Ti/Zn-TiO2 nanocomposites tested as photoanodes for the degradation of Ibuprofen

Gomes

Frade

Lobato

et al. 2011

J Solid State Electrochem

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Ti/Zn-TiO 2 electrodes were successfully prepared by the co-deposition method, on a titanium substrate, using an acidic zinc sulphate solution with TiO 2 nanoparticles in suspension. After electrodeposition, samples were heated in air at 450°C for 6 h. The X-ray diffraction analysis of the deposits point to the metal matrix modification from Zn to ZnO. In addition, the scanning electron microscopy results indicate that the films have a high surface area with a rich morphology, due to the appearance of ZnO needle-shaped grains. The voltammograms recorded, in Na 2 SO 4 solution, for these electrodes under illumination at λ0365 nm confirmed the films photoactivity. Photoelectrochemical degradation of Ibuprofen (Ibu) was achieved with the Zn-TiO 2 electrodes after thermal treatment. UV-Vis spectrometry, high-performance liquid chromatography (HPLC), chemical oxygen demand (COD) and total organic carbon (TOC) measurements were performed and data demonstrated that Ibuprofen was efficiently degraded. Absorbance at 220 nm, COD and TOC removals of 35%, 34% and 23%, respectively, were obtained after a 3 h period.

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Zn–TiO2 composite films prepared by pulsed electrodeposition

Cited by 48 publications

References 14 publications

Electrodeposition of Metal Matrix Nanocomposites: Improvement of the Chemical Characterization Techniques

Electrodeposition of Metal Matrix Nanocomposites: Improvement of the Chemical Characterization Techniques

Electrodeposited Zn–TiO2 nanocomposite coatings and their corrosion behavior

Annealed Ti/Zn-TiO2 nanocomposites tested as photoanodes for the degradation of Ibuprofen

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