Influence of Bath Composition at Acidic pH on Electrodeposition of Nickel-Layered Silicate Nanocomposites for Corrosion Protection

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This article describes how nickel-layered silicate nanocomposite films were electrochemically deposited using pulsed potentiostatic conditions from an acidic plating bath containing exfoliated layered silicate to enhance adhesion to the substrate, corrosion resistance, and mechanical properties.

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Tientong, Jeerapan; Thurber, Casey; D'Souza, Nandika; Mohamed, Adel M. A. & Golden, Teresa September 25, 2013.

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This article describes how nickel-layered silicate nanocomposite films were electrochemically deposited using pulsed potentiostatic conditions from an acidic plating bath containing exfoliated layered silicate to enhance adhesion to the substrate, corrosion resistance, and mechanical properties.

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8 p.

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Abstract: Nickel-layered silicates were electrochemically deposited from acidic bath solutions. Citrate was used as a ligand to stabilize nickel (II) ions in the plating solution. The silicate, montmorillonite, was exfoliated by stirring in aqueous solution over 24 hours. The plating solutions were analyzed for zeta-potential, particle size, viscosity, and conductivity to investigate the effects of the composition at various pHs. The solution particles at pH 2.5 (−22.2 mV) and pH 3.0 (−21.9 mV) were more stable than at pH 1.6 (−10.1 mV) as shown by zeta-potential analysis of the nickel citrate-montmorillonite plating solution. for the films ranged from −0.32 to −0.39 V with varying pH from 1.6 to 3.0. The films were immersed in 3.5% NaCl and the open circuit potential monitored for one month. The coatings deposited at pH 3.0 were stable 13 days longer in the salt solution than the other coatings. X-ray diffraction showed a change in the (111)/(200) ratio for the coatings at the various pHs. The scanning electron microscopy and hardness results also support that the electrodeposition of nickel-montmorillonite at pH 3.0 (234 GPa) had improved hardness and morphology compared to pH 2.5 (174 GPa) and pH 1.6 (147 GPa).

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  • International Journal of Electrochemistry, 2013. Cairo, Egypt: Hindawi Publishing Corporation

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  • Publication Title: International Journal of Electrochemistry
  • Volume: 2013
  • Pages: 8
  • Peer Reviewed: Yes

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  • September 25, 2013

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  • July 31, 2017, 8:25 p.m.

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  • Dec. 4, 2020, 12:22 p.m.

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Tientong, Jeerapan; Thurber, Casey; D'Souza, Nandika; Mohamed, Adel M. A. & Golden, Teresa. Influence of Bath Composition at Acidic pH on Electrodeposition of Nickel-Layered Silicate Nanocomposites for Corrosion Protection, article, September 25, 2013; Cairo, Egypt. (https://digital.library.unt.edu/ark:/67531/metadc987465/: accessed December 4, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT College of Arts and Sciences.

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