Insights into the superhydrophobicity of metallic surfaces prepared by electrodeposition involving spontaneous adsorption of airborne hydrocarbons

Liu, Peng; Cao, Ling; Zhao, Wei; Xia, Yue; Huang, Wei; Li, Zelin

doi:10.1016/j.apsusc.2014.10.170

Cited by 117 publications

(69 citation statements)

References 60 publications

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“…As a result, the proportion of carbon content on the surface would increase. Aria [45] and Liu [46] both have carried out independently further experiments in order to verify this conclusion.…”

Section: Analysis Of Surface Wettabilitymentioning

confidence: 99%

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Modification of wetting property of Inconel 718 surface by nanosecond laser texturing

Zheng

Tian

Yang

et al. 2017

Applied Surface Science

113

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Topographic and wetting properties of Inconel 718 (IN718) surfaces were modified via nanosecond laser treatment. In order to investigate surface wetting behavior without additional post treatment, three kinds of microstructures were created on IN718 surfaces, including line pattern, grid pattern and spot pattern. From the viewpoint of surface morphology, the results show that laser ablated grooves and debris significantly altered the surface topography as well as surface roughness compared with the nontreated surfaces. The effect of laser parameters (such as laser scanning speed and laser average power) on surface features was also discussed. We have observed the treated surface of IN718 showed very high hydrophilicity just after laser treatment under ambient air condistion.And this hydrophicility property has changed rapidly to the other extreme; very high hydrophobicity over just about 20 days. Further experiments and analyses have been carried out in order to investigate this phenomena. Based on the XPS analysis, the results indicate that the change of wetting property from hydrophilic to hydrophobic over time is due to the surface chemistry modifications, especially carbon content. After the contact angles reached steady state, the maximum water contact angle (WCA) for line-patterned and grid-patterned surfaces increased to 152.3  1.2° and 156.8  1.1° with the corresponding rolling angle (RA) of 8.8  1.1° and 6.5  0.8°, respectively. These treated IN718 surfaces exhibited superhydrophobic property. However, the maximum WCA for the spot-patterned surfaces just increased to 140.8  2.8° with RA above 10°. Therefore, it is deduced that laser-inscribed modification of surface wettability has high sensitivity to surface morphology and surface chemical compositions. This work can be utilized to optimize the laser processing parameters so as to fabricate desired IN718 surfaces with hydrophobic or even superhydrophobic property and thus extend the applications of IN718 material in various fields.

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Section: Analysis Of Surface Wettabilitymentioning

confidence: 99%

“…The surface chemistry was investigated by XPS for the samples with superhydrophobicity, before/after thermal annealing treatment, UV-O3 treatment, and before/after Ar + -etching in vacuum and re-exposure under ambient air [45][46].…”

Section: Analysis Of Surface Wettabilitymentioning

confidence: 99%

Modification of wetting property of Inconel 718 surface by nanosecond laser texturing

Zheng

Tian

Yang

et al. 2017

Applied Surface Science

113

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“…Consequentially, research on 2D and bulk lamellar materials predominately excludes considerations based on hydrocarbon contamination although spontaneous hydrocarbon adsorption is well known to occur on high surface energy metals. [35][36][37][38][39][40] Taking into account a thin hydrocarbon layer may help explain prior results on carbon surfaces 41 and contradictory electrochemical results on the basal plan of HOPG. 42 McCreery et al reported that electron transfer on the basal surface of HOPG is 1-3 orders of magnitude slower than electron transfer on glassy carbon.…”

Section: Implications Of Surface Contaminationmentioning

confidence: 99%

Understanding the intrinsic water wettability of graphite

Kozbial¹,

Li²,

Sun³

et al. 2014

Carbon

189

244

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“…The heating treatment does not damage the surface dendrites structure but change the wetting property. This is because of the hydrocarbons containing non-polar groups of C=C/C−C and polar groups of C=O/C−O existing almost everywhere in air that can spontaneously adsorb on the material surface [34,35]. Both of the non-polar and polar hydrocarbons are gradually desorbed during the heating process.…”

Section: Resultsmentioning

confidence: 99%

“…It can be seen that the water CA reduces rapidly from 167.1°to 7.8°when the UV irradiation time increases. The process of superhydrophobic Ag surface becoming superhydrophilic only needs 6 h of UV irradiation [35,36]. These phenomena can be explained by two aspects.…”

Section: Resultsmentioning

confidence: 99%

Reversible wettability between superhydrophobicity and superhydrophilicity of Ag surface

et al. 2016

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We present a facile one-step method to fabricate superhydrophobic Ag surface by electrodeposition without using any low surface energy reagent. The water contact angle of the prepared surface is 167.1°and the sliding angle is only 0.5°after heat treatment. It is demonstrated by the field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses that the dendrites of rough micro-nanostructure combined with the spontaneously adsorbed hydrocarbon make the surface exhibit superhydrophobicity. However, the superhydrophobic Ag surface becomes superhydrophilic when the surface is irradiated by UV light for several hours. It recovers superhydrophobicity after further heat treatment and can successfully implement the reversible wettability transition between superhydrophobicity and superhydrophilicity for several cycles.

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Insights into the superhydrophobicity of metallic surfaces prepared by electrodeposition involving spontaneous adsorption of airborne hydrocarbons

Cited by 117 publications

References 60 publications

Modification of wetting property of Inconel 718 surface by nanosecond laser texturing

Modification of wetting property of Inconel 718 surface by nanosecond laser texturing

Understanding the intrinsic water wettability of graphite

Reversible wettability between superhydrophobicity and superhydrophilicity of Ag surface

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