Fabrication of superhydrophobic copper surface with ultra-low water roll angle

Zhang, Youfa; Yu, Xinquan; Quan-Hui, Zhou; Chen, Feng; Li, Kangning

doi:10.1016/j.apsusc.2009.10.024

Cited by 54 publications

(18 citation statements)

References 26 publications

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“…SEM was performed to evaluate the morphology and structure of materials. As seen in Figure 1a, the OCF exhibited nano-or micro-size along with rough surface that composed of the petal shapes of copper oxide sheets roughly 800nm in diameters, in line with the results reported in the literature 20 . However, because of the hydrophilic nature of OCF, the adsorb ability for superhydrophobic PCM (such as paraffin or SA) is poor.…”

Section: Resultssupporting

confidence: 79%

Superhydrophobic Copper Foam Supported Phase Change Composites with High Thermal Conductivity for Energy Storage

et al. 2018

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Superhydrophobic and superoleophilic oxidized copper foam (OCF) was prepared by oxidation of copper foam using (NH 4 ) 2 S 2 O 8 to generate rough surface then followed by modification with low surface energy substance polydimethylsiloxane (PDMS) and stearic acid (SA). Based on sperwetting, form-stable phase change materials (PCMs) composites were obtained by facile absorbing of organic PCMs into PDMS-OCF network. In this way, the organic PCMs can be spontaneously adsorbed and remain stable without leakage even at high temperature over their melting points, and the thermal storage capacity of the as-synthesized PCMs composites were analyzed using a differential scanning calorimeter (DSC). The latent heats of the PDMS-OCF/PCMs composites were measured to be 36.87 J g -1 and 36.81 J g -1 for PDMS-OCF/paraffin and PDMS-OCF/SA, respectively, which is greater than that of untreated copper form (CF)/paraffin composite (8.50 J g -1). The PDMS-OCF/PCMs composite shows better thermal stability and the loaded organic PCM has been reduced by 0.64% after 100 times of melting-cooling recycling for PDMS-OCF/paraffin. The thermal conductivity of PDMS-OCF/paraffin composite is about 9 times that of pure paraffin. Such excellent thermal conductivity as well as good thermal stability of the PDMS-OCF/PCMs makes it promising candidate for thermal energy storage.

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Section: Resultssupporting

confidence: 79%

Superhydrophobic Copper Foam Supported Phase Change Composites with High Thermal Conductivity for Energy Storage

et al. 2018

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“…As an important engineering material, copper is widely used in many industrial applications. Recently, there were some reports on copper-based materials, and much work has attempted to create superhydrophobic copper surfaces. − However, superoleophobicity on copper substrate has received relatively little attention; particularly, to the best of our knowledge, switchable oil wettability and adhesion transition on copper substrates have not been reported so far. In this study, switchable oil wettability and adhesion transition on a copper sheet was realized with ease by the alternation of plasma treatment and surface fluorination, as shown in Figure .…”

Section: Introductionmentioning

confidence: 99%

Rapid Control of Switchable Oil Wettability and Adhesion on the Copper Substrate

Zhu

Zhang

et al. 2011

Langmuir

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We described a facile approach to rapidly achieve the reversible oil wettability and adhesion transition on the copper substrate. Plasma treatment and surface fluorination were used to tune the surface composition, and this tunability of the surface composition, along with the stable surface roughness, gave rise to the switchable wettability varying from superoleophobicity to superoleophilicity and reversible oil adhesion between sliding superoleophobicity and sticky superoleophobicity. It took only 1.25 min to realize the whole wettability transition and 5 min for the whole adhesion transition. Additionally, the application of a sticky superoleophobic surface was demonstrated. This study represents an important addition to the field of functional superoleophobic materials.

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“…The surface of Cu after corrosion (Figure a1) is mainly covered with petal‐like and small cubic substances. They are probably related to CuO, copper hydroxide and Cu 2 O, respectively. The surface of TTC‐Cu after corrosion (Figure a3) is mainly distributed with trident star like substances.…”

Section: Resultsmentioning

confidence: 99%

A novel process for copper protection in the simulated industrial cooling water based on click synthesis and self‐assembling method

Zhang

et al. 2019

Materials & Corrosion

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The triazole inhibitor of 1‐(p‐tolylthio)‐1H‐1,2,3‐triazole‐4‐carboxylic acid (TTC) was synthesized via the Cu(I)‐catalyzed azide‐alkyne 1,3‐dipolar cycloaddition reaction. The self‐assembling method was performed to fabricate the self‐assembled film of TTC on the copper surface. The electrochemical measurement results indicate that the TTC film can efficiently protect the copper from corrosion in high concentrated industrial cooling water. The protection efficiency of TTC film for copper is 92.2%. Surface characterizations imply that the copper with TTC film after corrosion is covered with multiple protective layers. It probably contains Cu(I) and Cu(II) complexes mixed with nitrogenous compound, Cl− and SO42−. The result of quantum chemical calculation shows that the superior performance of TTC film is related to the adsorption of TTC molecules on copper surface horizontally. This kind of adsorption is mainly achieved via the adsorption centers of triazole ring and O atoms in TTC molecule.

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Fabrication of superhydrophobic copper surface with ultra-low water roll angle

Cited by 54 publications

References 26 publications

Superhydrophobic Copper Foam Supported Phase Change Composites with High Thermal Conductivity for Energy Storage

Superhydrophobic Copper Foam Supported Phase Change Composites with High Thermal Conductivity for Energy Storage

Rapid Control of Switchable Oil Wettability and Adhesion on the Copper Substrate

A novel process for copper protection in the simulated industrial cooling water based on click synthesis and self‐assembling method

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