Impact of the addition of cerium salts (Ce(III) and Ce(IV)) on formation and ageing of a silica sol-gel layer

Druart, Marie-Eve; Recloux, Isaline; Thái, Trần Thành; Ershov, Sergey; Snyders, Rony; Olivier, Marie‐Georges

doi:10.1016/j.surfcoat.2016.07.006

Cited by 15 publications

(9 citation statements)

References 48 publications

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“…Many research had been undertaken to study the anticorrosion efficiency of cerium salts for a number of metals and alloys, such as: aluminum, zinc, tin, steel, hot dip galvanized steel and their alloys, etc. [11][12][13][14][15]. The corrosion behavior of cerium salt was reported by Hayes et al [16] and Yu et al [17].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Cerium (Iii) Activated-Ceria Nanoparticles as Corrosion Inhibitors for Carbon Steel

Nguyen

Thái

et al. 2018

JST

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Abstract. The present work investigated the corrosion protection performance of Ce(III) activated-cerium(IV) oxide nanoparticles for carbon steel in a NaCl solution. Ceria nanoparticles were synthesized by homogeneous precipitation in ethanol/water mixed solvent. The obtained CeO 2 nanoparticles were characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). The corrosion inhibition action of the activated nanoparticles by cerium(III) ions on carbon steel in NaCl solution was evaluated by electrochemical measurements (electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization). Then, the effect of cerium salt activated-CeO 2 on the protection properties of poly-vinyl-butyral (PVB) coating deposited onto carbon steel plate was studied by salt spray test. The obtained results showed that the salt activated-nanoparticles are anodic corrosion inhibitors. The presence of Ce(III) activated CeO 2 in the coating improved the barrier properties and corrosion protection performance of the PVB coating. No swellings of coating were observed after 48 hours of exposure in salt spray chamber.

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Section: Introductionmentioning

confidence: 99%

Investigation of Cerium (Iii) Activated-Ceria Nanoparticles as Corrosion Inhibitors for Carbon Steel

Nguyen

Thái

et al. 2018

JST

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“…The most promising are inorganic/organic corrosion inhibitors added directly into the coating or added as nano-containers [25]. Rare earth cations, such as cerium(III) and cerium(IV) salts, were added in different hybrid sol-gel systems [26][27][28]. Cerium salts, e.g., chloride, acetate and nitrate, are recognized as efficient corrosion inhibitors for Al-based alloys when added directly in corrosive medium [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

“…However, the addition of cerium salts into the sol-gel matrix changes its physical, chemical and corrosion properties [11,25]. Cerium is a network modifier, i.e., it increases the condensation rate of the hybrid sol and forms a more condensed network due to the reduction of the amount of silanol groups (Si−OH) [27,36]. The addition of cerium also leads to further condensation and crosslinking between polymer molecules [27,37,38].…”

Section: Introductionmentioning

confidence: 99%

“…Cerium is a network modifier, i.e., it increases the condensation rate of the hybrid sol and forms a more condensed network due to the reduction of the amount of silanol groups (Si−OH) [27,36]. The addition of cerium also leads to further condensation and crosslinking between polymer molecules [27,37,38]. Moreover, the cerium can migrate through the coating and improve the active corrosion protection, resulting in self-healing properties [28].…”

Section: Introductionmentioning

confidence: 99%

“…At the same time, it has to be assured that doping of the coating with cerium does not reduce the barrier properties of the coating, as cerium ions are bigger in size (1.978 Å) compared to silicon atoms (1.068 Å). The addition of the larger Ce amount might cause lattice deformation and the formation of nanopores and consequently dramatically change the characteristics of the coating [27,38].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Cerium Ions on the Structure, Porosity and Electrochemical Properties of Si/Zr-Based Hybrid Sol-Gel Coatings Deposited on Aluminum

Rodič

Katić

Korte

et al. 2018

Metals

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This study was focused on the synthesis and characterization of Si/Zr-based hybrid sol-gel coatings with and without the addition of cerium(III) ions. The coatings were deposited on aluminum aiming to act as an effective and ecologically harmless alternative to toxic chromate coatings. The chemical composition, structure, thermal properties and porosity of the non-doped and Ce-doped coatings containing various Zr contents were examined by Raman spectroscopy and photothermal beam deflection spectroscopy. The corrosion properties of the coated aluminum substrates were studied using AC and DC electrochemical methods in 0.1 M NaCl electrolyte solution. Barrier and protecting properties of the coatings were monitored upon long-term immersion in chloride solution using electrochemical impedance spectroscopy. The effect of cerium ions was twofold: on the formation of a more condensed Si−O−Zr network structure and on the formation of Ce-based deposits, which diminish the rate of cathodic reaction at the coating/metal interface. These effects acted synergistically and resulted in the creation of the coatings with effective barrier and active corrosion protection.

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Sol-Gel Synthesis and Characterization of Hybrid Materials for Biomedical Applications

Catauro

Ciprioti

2019

Series in BioEngineering

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Impact of the addition of cerium salts (Ce(III) and Ce(IV)) on formation and ageing of a silica sol-gel layer

Cited by 15 publications

References 48 publications

Investigation of Cerium (Iii) Activated-Ceria Nanoparticles as Corrosion Inhibitors for Carbon Steel

Investigation of Cerium (Iii) Activated-Ceria Nanoparticles as Corrosion Inhibitors for Carbon Steel

The Effect of Cerium Ions on the Structure, Porosity and Electrochemical Properties of Si/Zr-Based Hybrid Sol-Gel Coatings Deposited on Aluminum

Sol-Gel Synthesis and Characterization of Hybrid Materials for Biomedical Applications

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