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Unuma, Hidero; Takabatake, H.; Takeda, Shuntaro; Sakai, Masamichi; Watanabe, Kunio; Sugawara, Michio

doi:10.1023/a:1025743513063

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…This coating was deposited by soaking a glass slide in a solution containing 0.01mol/dm 3 The control of the composition of the starting solution and the reaction temperature is very important to obtain homogeneous and clear coating; powdery precipitate predominates or nothing happens otherwise.…”

Section: Oxidative Soak Coating Methods Snomentioning

confidence: 99%

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Ceramic Coatings Deposited from Aqueous Solutions

Unuma

2007

SSP

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This paper reviews novel techniques developed in our laboratory to deposit ceramic thin films from aqueous solutions. All the techniques are based on the heterogeneous nucleation and growth phenomenon; ceramic precipitates are prone to be formed preferentially on substrate/solution interfaces when the rate of the formation of the precipitates is appropriately controlled. In “oxidative soak coating” method, metal ions with a lower valence state are oxidized in homogeneous solutions to those with a higher valence state; thereby coatings of SnO2, MnO2, CeO2, Co3O4 and Fe3O4 have been deposited. In “ligand decomposition” method, ligands of an indium peroxo- complex are decomposed to promote spontaneous hydrolysis of the indium ion; thereby In2O3 coating has been deposited. In “enzyme-assisted precipitation” method, precipitant of metal ions is supplied by urease immobilized on a substrate to promote local deposition of ceramics on the substrate, by which hydroxyapatite coating has been rapidly deposited. The control of the rate of the precipitation reactions is the most important parameter. Some properties of the resultant coatings are also presented.

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Section: Oxidative Soak Coating Methods Snomentioning

confidence: 99%

“…By soaking the as-deposited coatings in a Sb 3+ -containing solution and a subsequent heat-treatment, the coating exhibited electrical conductivity [3].…”

Section: Oxidative Soak Coating Methods Snomentioning

confidence: 99%

Ceramic Coatings Deposited from Aqueous Solutions

Unuma

2007

SSP

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Preparation of Co3O4 thin films by a modified chemical-bath method

et al. 2004

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Preparation of Fe3O4 Thin Films by a Chemical Bath Technique

Saito¹,

Kaga²,

Tsutsumida³

et al. 2005

Chemistry Letters

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This letter describes a new method to prepare Fe3O4 thin films on glass substrates from aqueous solutions kept in a temperature range from 333 to 343 K. The process includes the deposition of precursor thin films, α-FeOOH, by oxidation of Fe2+ ion in aqueous solutions, and the conversion of the precursor to Fe3O4 in another solution. The film thickness, microstructure and magnetic properties of the resultant Fe3O4 thin films were characterized.

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Untitled

Cited by 5 publications

References 5 publications

Ceramic Coatings Deposited from Aqueous Solutions

Ceramic Coatings Deposited from Aqueous Solutions

Preparation of Co3O4 thin films by a modified chemical-bath method

Preparation of Fe3O4 Thin Films by a Chemical Bath Technique

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