The electrochromic properties of hydrated nickel oxide films formed by colloidal and anodic deposition

Orel, Zorica Crnjak; Hutchins, M.G.; McMeeking, Graham D.

doi:10.1016/0927-0248(93)90110-o

Cited by 31 publications

(2 citation statements)

References 11 publications

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“…12,13 The other anodic oxidation method involves the oxidation of species in solution from a lower oxidation state to a higher oxidation state; examples for this technique include the formation of hydrous IrO 2 films, hydrated nickel oxide, PbO 2 /Co 2 O 3 composites, and single-crystalline Bi 2 O 3 films. [14][15][16][17] There has been little study of the anodic deposition of cerium oxide films. Balasubramanian and co-workers studied electrochemically deposited cerium-related thin films and investigated the oxidation state of the cerium utilizing X-ray absorption fine structure technique ͑XAFS͒.…”

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Anodic Electrodeposition of Cerium Oxide Thin Films

Golden

Wang

2003

J. Electrochem. Soc.

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Nanocrystalline cerium oxide films with grain sizes as small as 6 nm are deposited by anodic deposition. Cyclic voltammetry studies of a series of complexing ligands indicate that formation constants below 1×103 and a solution pH between 7 and 10 are needed for CeO2 film formation. A mechanism is proposed for the deposition of polycrystalline CeO2 films by anodic deposition. © 2003 The Electrochemical Society. All rights reserved.

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Anodic Electrodeposition of Cerium Oxide Thin Films

Golden

Wang

2003

J. Electrochem. Soc.

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“…This film could provide a barrier against the corrosion attack on Ni-P coating and thus protect the coated AZ91 alloy. Nickel undergoes the passivation reaction in aqueous solutions forming several nanometers thick film of nickel oxide (NiO) or hydrated nickel oxide (NiO x H y ) [36,37].…”

Section: Electrochemical Impedance Spectroscopy Characteristicsmentioning

confidence: 99%

Improvement of AZ91 Alloy Corrosion Properties by Duplex NI-P Coating Deposition

et al. 2020

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The corrosion behavior of duplex Ni-P coatings deposited on AZ91 magnesium alloy was studied. The electroless deposition process of duplex Ni-P coating consisted in the preparation of low-phosphorus Ni-P coating (5.7 wt.% of P), which served as a bond coating and high-phosphorus Ni-P coating (11.5 wt.% of P) deposited on it. The duplex Ni-P coatings with the thickness of 25, 50, 75 and 100 µm were deposited on AZ91 magnesium alloy. The electrochemical corrosion behavior of coated AZ91 magnesium alloy was investigated by electrochemical impedance spectroscopy and potentiodynamic polarization method in 0.1 M NaCl. Obtained results showed a significant improvement in the corrosion resistance of coated specimens when compared to uncoated AZ91 magnesium alloy. From the results of the immersion tests in 3.5 wt.% NaCl, 10% solution of HCl and NaOH and 5% neutral salt spray, a noticeable increase in the corrosion resistance with the increasing thickness of the Ni-P coating was observed.

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