Morphology of nanoporous anodic films formed on tin during anodic oxidation in less commonly used acidic and alkaline electrolytes

Zaraska, Leszek; Gawlak, Karolina; Gurgul, Magdalena; Gilek, Dominika; Kozieł, Marcin; Socha, Robert P.; Sulka, Grzegorz D.

doi:10.1016/j.surfcoat.2019.01.114

Cited by 23 publications

(16 citation statements)

References 28 publications

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“…Further increase in the bias voltage leads to the precipitation of tin oxalate by reaction of the stannate intermediate that was formed during the anodization with the oxalic acid etchant (Figure h). The results indicate that the lamellar structure represents an intermediate of the anodization at low bias, porous nanochannels were shown to form at high bias , …”

Section: Resultsmentioning

confidence: 96%

“…Irregular nanoporous tin oxide films in 0.3 m oxalic acid solution were synthesized at voltages of 6–8 V and used as a gas sensor material . Anodization of tin in oxalic acid solutions at an applied voltage of above 5 V produces highly porous tin oxide structures, as shown by anodic oxidation at a potential of 8 V followed by annealing between 200 °C and 700 °C . Lower applied voltages lead to a surface passivation by precipitation of tin oxalate , .…”

Section: Introductionmentioning

confidence: 99%

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Self‐Organized Arrays of SnO₂ Microplates with Photocatalytic and Antimicrobial Properties

et al. 2019

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Porous anodic metal oxides have been widely used for the development of various functional nanostructures. So far, these self-organized pore structures were prepared as hexagonal arrangements of nanopores, which have become a popular template system for the fabrication of functional nanostructures. Here we report a new oxalic acid-based anodization process for long-range ordered arrays of submicrometer tin dioxide plates at low applied voltages in buffered solution, which prevents the precipitation of SnC 2 O 4 on the Sn anode surface. The chemical composition of the surface SnO 2 was established [a]

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Self‐Organized Arrays of SnO₂ Microplates with Photocatalytic and Antimicrobial Properties

et al. 2019

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“…Optical band gap (E g ) values were estimated from [F(R) hv] 2 vs. hv plots (Tauc plots) constructed based on UV-Vis DRS spectra according to the previously described procedure [ 36 ] (direct nature of E g was assumed). As can be seen in Figure 4 , the E g of the samples not subjected to annealing after the SILAR procedure ( Figure 4 a blue and back lines) are almost the same as those observed for unmodified SnO x ( Figure 4 b).…”

Section: Resultsmentioning

confidence: 99%

CdS-Decorated Porous Anodic SnOx Photoanodes with Enhanced Performance under Visible Light

et al. 2022

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Electrochemically generated nanoporous tin oxide films have already been studied as photoanodes in photoelectrochemical water splitting systems. However, up to now, the most significant drawback of such materials was their relatively wide band gap (ca. 3.0 eV), which limits their effective performance in the UV light range. Therefore, here, we present for the first time an effective strategy for sensitization of porous anodic SnOx films with another narrow band gap semiconductor. Nanoporous tin oxide layers were obtained by simple one-step anodic oxidation of metallic Sn in 1 M NaOH followed by further surface decoration with CdS by the successive ionic layer adsorption and reaction (SILAR) method. It was found that the nanoporous morphology of as-anodized SnOx is still preserved after CdS deposition. Such SnOx/CdS photoanodes exhibited enhanced photoelectrochemical activity in the visible range compared to unmodified SnOx. However, the thermal treatment at 200 °C before the SILAR process was found to be a key factor responsible for the optimal photoresponse of the material.

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“…Anodic oxidation is a well‐acknowledged method for preparing different oxide films on metallic materials . In this process, metallic material is used as anode.…”

Section: Conventional Technologies For Surface Modificationmentioning

confidence: 99%

“…Anodic oxidation is a well-acknowledged method for preparing different oxide films on metallic materials. [292] In this process, metallic material is used as anode. In comparison to passivation, anodic oxidation reactions are driven by electric field which can promote the diffusion of metal ions and oxygen ions, resulting in the formation of oxide film on the surface of anode.…”

Section: Electrochemical Treatmentsmentioning

confidence: 99%

Surface Modification of Titanium and Titanium Alloys: Technologies, Developments, and Future Interests

2020

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Thanks to a considerable number of fascinating properties, titanium (Ti) and Ti alloys play important roles in a variety of industrial sectors. However, Ti and Ti alloys could not satisfy all industrial requirements; the degradation of Ti and Ti alloys always commences on their surfaces in service, which declines the performances of Ti workpieces. Therefore, with aim to further improve their mechanical, corrosion and biological properties, surface modification is often required for Ti and Ti alloys. This article reviews the technologies and recent developments of surface-modification methods with respect to Ti and Ti alloys, including mechanical, physical, chemical, and biochemical technologies. Conventional methods have limited improvement in the properties and/or restriction on the geometry of workpieces. Therefore, many advanced surfacemodification technologies have emerged in recent decades. New methods make Ti and Ti alloys have better performance and extended applications. With requirement of high surface properties in future. Understanding the mechanism in various surface-modification methods, combining the advantages of current technologies and developing new coating materials with high performance are required urgently. As such, incorporation of different surface-modification technologies with high-performance modified layers may be the mainstream of surface modifications for Ti and Ti alloys. . His current research interests focus on the metal additive manufacturing (e.g., selective laser melting, electron beam melting), titanium alloys and composites, and processing-microstructureproperties in high-performance materials.

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Morphology of nanoporous anodic films formed on tin during anodic oxidation in less commonly used acidic and alkaline electrolytes

Cited by 23 publications

References 28 publications

Self‐Organized Arrays of SnO₂ Microplates with Photocatalytic and Antimicrobial Properties

Self‐Organized Arrays of SnO₂ Microplates with Photocatalytic and Antimicrobial Properties

CdS-Decorated Porous Anodic SnOx Photoanodes with Enhanced Performance under Visible Light

Surface Modification of Titanium and Titanium Alloys: Technologies, Developments, and Future Interests

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Morphology of nanoporous anodic films formed on tin during anodic oxidation in less commonly used acidic and alkaline electrolytes

Cited by 23 publications

References 28 publications

Self‐Organized Arrays of SnO2 Microplates with Photocatalytic and Antimicrobial Properties

Self‐Organized Arrays of SnO2 Microplates with Photocatalytic and Antimicrobial Properties

CdS-Decorated Porous Anodic SnOx Photoanodes with Enhanced Performance under Visible Light

Surface Modification of Titanium and Titanium Alloys: Technologies, Developments, and Future Interests

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Product

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Self‐Organized Arrays of SnO₂ Microplates with Photocatalytic and Antimicrobial Properties

Self‐Organized Arrays of SnO₂ Microplates with Photocatalytic and Antimicrobial Properties