Control of triboelectrification on Al–metal surfaces through microstructural design

Feng, Min; Ma, Shaochen; Liu, Ying; Zheng, Youbin; Feng, Yange; Wang, Hanchao; Cheng, Jiahui; Wang, Daoai

doi:10.1039/d2nr03445j

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…Aluminum (Al) alloys are widely utilized in aerospace, automotive, marine, and other industries due to the excellent properties in low density, high thermal conductivity, and ease of processing and forming. − Despite the natural formation of protective oxide films on this material surface, its thin thickness (typically only several nanometers) , usually makes it a severe challenge to withstand corrosive attacks, especially under extreme conditions. Therefore, some techniques including organic coating, , electroplating, and anodizing , have been developed to reduce this risk.…”

Section: Introductionmentioning

confidence: 99%

Dense Amorphous Passivation Layer Formed on Aluminum Alloy Surfaces by Femtosecond Laser-Assisted Oxygen-Rich Doping

Zhang,

Yan,

Zou

et al. 2024

Langmuir

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Aluminum (Al) alloy surfaces are prone to serious corrosion in humid and salt-laden environments, which promotes the development of numerous protective approaches. Although the amorphous state is more conducive to improve corrosion resistance compared with the crystalline state, it still faces coating design problems like insufficient adhesive strength and flaking-off tendency. Here, we propose a strategy of femtosecond laser-assisted oxygen-rich doping to in situ create a dense high-quality passivation layer on Al alloy surfaces. With respect to the femtosecond laser processing in traditional air ambience, the material surface modifications within the oxygen-rich environment demonstrate some distinctiveness. For the ridge area of the laser ablation grooves, the oxidation surface is separated into two layers: the outer region presents a loose and porous appearance similar to the observations in the air ambience, while the inner region exhibits complete and homogeneous oxidation, especially associated with the continuous distribution of the amorphous substance, in sharp contrast to the nanoscale discrete amorphous formation in the air case. Simultaneously, the high degree of material oxidization with the amorphous phase is also developed on the wallside area of the groove valleys, which is much different from the incomplete oxidation in the air ambience. As a result, the measured corrosion current decreases by 49 times to a value of I corr = 1.19 × 10–10 A/cm2 relative to the laser treatment in the air environment. Such a method offers the prospect for elevating the anticorrosion performance of metal surfaces.

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Section: Introductionmentioning

confidence: 99%

Dense Amorphous Passivation Layer Formed on Aluminum Alloy Surfaces by Femtosecond Laser-Assisted Oxygen-Rich Doping

Zhang,

Yan,

Zou

et al. 2024

Langmuir

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“…They found that all of the output performance of TENG with nanostructured PDMS is better than TENG with flat PDMS. The maximum voltage of the TENG with the cicada wing reached 210 V. 25 To date, a variety of methods to fabricate the micro/nanostructures have been reported, including lithography, 26 anodic aluminum oxide (AAO), 27,28 nanoimprinting, 29 etching, 30 and self-assembly. 31 Different methods to fabricate nanostructures have pros and cons of being suitable for various application scenarios.…”

Section: Introductionmentioning

confidence: 99%

Nanopillar- and Nanocone-Structured SrTiO₃/PDMS Films for Triboelectric Nanogenerators

Meng,

Hui,

et al. 2024

ACS Appl. Nano Mater.

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Structurally Defined Amphiphilic AAO Membranes Using UV-Assisted Thiol–Yne Chemistry: Applications in Anti-Counterfeiting and Electronics

Lee,

Fan,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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In this study, we fabricate and characterize amphiphilic anodic aluminum oxide (AAO) membranes using UV-triggered thiol−yne click reactions and photomasks for various innovative applications, including driven polymer nanopatterns, anti-counterfeiting, and conductive pathways. Specifically, we synthesize 10undecynyl-terminated-AAO membranes and subsequently prepare amphiphilic AAO membranes with superhydrophilic and superhydrophobic regions. Various analytical methods, including grazing angle X-ray photoelectron spectroscopy (GIXPS), energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), Xray diffraction analysis (XRD), nanofocused synchrotron X-ray techniques (nano-XRD and nano-XRF), and water contact angle measurements, confirm the modifications and distinct properties of the modified areas. This work achieves a series of applications, such as driven polymer nanopatterns, solvent-and light-triggered anticounterfeiting, and region-selective conductive pathways using silver paint with lower resistivity. Besides, the amphiphilic AAO membrane exhibits successful stability, durability, and reusability. To sum up, this study highlights the versatility and potential of amphiphilic AAO membranes in advanced material design and smart applications.

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Control of triboelectrification on Al–metal surfaces through microstructural design

Abstract: Micro/nano-AAO was fabricated on the surface of Al, and the short-circuit current was reduced 8.77 times through microstructure and composition regulation. Besides, a positive correlation between the contact area and the charge density was demonstrated.

Cited by 3 publications

References 42 publications

Dense Amorphous Passivation Layer Formed on Aluminum Alloy Surfaces by Femtosecond Laser-Assisted Oxygen-Rich Doping

Dense Amorphous Passivation Layer Formed on Aluminum Alloy Surfaces by Femtosecond Laser-Assisted Oxygen-Rich Doping

Nanopillar- and Nanocone-Structured SrTiO₃/PDMS Films for Triboelectric Nanogenerators

Structurally Defined Amphiphilic AAO Membranes Using UV-Assisted Thiol–Yne Chemistry: Applications in Anti-Counterfeiting and Electronics

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Control of triboelectrification on Al–metal surfaces through microstructural design

Abstract: Micro/nano-AAO was fabricated on the surface of Al, and the short-circuit current was reduced 8.77 times through microstructure and composition regulation. Besides, a positive correlation between the contact area and the charge density was demonstrated.

Cited by 3 publications

References 42 publications

Dense Amorphous Passivation Layer Formed on Aluminum Alloy Surfaces by Femtosecond Laser-Assisted Oxygen-Rich Doping

Dense Amorphous Passivation Layer Formed on Aluminum Alloy Surfaces by Femtosecond Laser-Assisted Oxygen-Rich Doping

Nanopillar- and Nanocone-Structured SrTiO3/PDMS Films for Triboelectric Nanogenerators

Structurally Defined Amphiphilic AAO Membranes Using UV-Assisted Thiol–Yne Chemistry: Applications in Anti-Counterfeiting and Electronics

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Product

Resources

About

Nanopillar- and Nanocone-Structured SrTiO₃/PDMS Films for Triboelectric Nanogenerators