Ultra low water adhesive metal surface for enhanced corrosion protection

Wang, Gang; Zeng, Zhixiang; Chen, Junjun; Xu, Meng-Ya; Jin-hua, Zhu; Shuan, Liu; Ren, Tianhui; Xue, Qunji

doi:10.1039/c6ra03875a

Cited by 23 publications

(6 citation statements)

References 38 publications

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“…In this stacked catalytic membrane microreactor, a single-phase fluid flow can be achieved by introducing membranes that can guarantee a uniform flow distribution. In this work, poly(dimethylsiloxane) (PDMS) was selected as the membrane material due to its superiority with respect to gas permeability and chemical stability. − The catalysts were prepared and immobilized on the PDMS membranes by the layer-by-layer (LbL) self-assembly method − and in situ reduction technology without corrosion. Prior to the preparation of the catalysts, dopamine and polyelectrolyte multilayers (PEMs) , were deposited on the PDMS membranes to adsorb metal ions.…”

Section: Introductionmentioning

confidence: 99%

Stacked Catalytic Membrane Microreactor for Nitrobenzene Hydrogenation

Liu

Zhu

Liao

et al. 2020

Ind. Eng. Chem. Res.

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In the present study, a novel stacked catalytic membrane microreactor assembled by microfluidic sheets and gaspermeable membranes was developed for gas−liquid−solid multiphase catalytic reactions. The developed microreactor consisted of multilayered perforated microchannels for supplying liquid reactants and perforated microchambers for supplying gas reactants, which were separated by poly(dimethylsiloxane) membranes with coated catalysts. Gas and liquid reactants flowed through their independent passageways layer by layer. Gas reactants bidirectionally permeated through the gas-permeable membrane to the catalyst layer, improving the gas utilization. Catalyst layers were prepared and immobilized on the membranes through layer-by-layer self-assembly and in situ reduction technology. Unlike other stacked microreactors, the integration of microchannels, microchambers, and membranes into one unit circumvented flow maldistribution, low durability, and low throughput of the microreactor. Furthermore, the scale-up of the membrane microreactor could be easily realized by increasing the number of microfluidic sheets and membranes. The catalytic performance was evaluated by nitrobenzene hydrogenation over palladium nanocatalyst. Results showed that the stacked catalytic membrane microreactor enabled a stable and efficient operation for 50 h. As the number of stacked layers was increased, the durability was continuously increased. The conversion was increased with increasing hydrogen flow rate or decreasing nitrobenzene flow rate. In addition, the increased inlet nitrobenzene concentration led to more serious catalyst deactivation, which decreased the conversion. In general, the stacked catalytic membrane microreactor developed in this study creates a new approach to design membrane microreactors for multiphase catalytic reactions.

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Section: Introductionmentioning

confidence: 99%

Stacked Catalytic Membrane Microreactor for Nitrobenzene Hydrogenation

Liu

Zhu

Liao

et al. 2020

Ind. Eng. Chem. Res.

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“…This model can explain phenomena as the self-cleaning properties of Lotus leaves 1 or the anti-fogging property of fly eyes [14]. Amongst all the surface structures reported in the literature, nanofibers were found to be extremely interesting to control the surface wettability [15][16][17][18]. Indeed, the surface hydrophobicity and water adhesion are highly dependent on their length, diameter, orientation to the substrates as well as their spacing.…”

Section: Introductionmentioning

confidence: 99%

Major influence of the hydrophobic chain length in the formation of poly(3,4-propylenedioxypyrrole) (PProDOP) nanofibers with special wetting properties

Mortier

Darmanin

Guittard

2018

Materials Today Chemistry

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“…Figure 15 shows how this coating has tremendously improved the corrosion resistance as compared to only plain copper substrate, substrate with PDMS coating and substrate with ZnO coating. 45 Experiments by Liu et al, 46 to generate copper with superhydrophobic surfaces by treatment with n-tetradetanoic acid ethanol solution, also show reduction in corrosion rate of copper surfaces.…”

Section: Prevention Of Corrosion Due To Watermentioning

confidence: 98%

Section: Theory Of Superhydrophobic Surfacesmentioning

confidence: 99%

Superhydrophobic surfaces review: Functional application, fabrication techniques and limitations

Manoharan

Bhattacharya

2019

Journal of Micromanufacturing

135

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Over the years, researchers have been working to mimic the nature by inducing superhydrophobic properties into a variety of material surfaces so that they exhibit non-wetting properties. Many diverse applications have been found in the fields, such as space and aerospace, defence, automotive, biomedical applications and engineering, sensors, apparels, and so on. Superhydrophobic surfaces repel water generally due to their surface texture or chemical properties. In this article, we focus on the functional applications of the superhydrophobic surfaces, and state-of-the-art fabrication technologies and processes, and the limitations of these processes to generate the superhydrophobic surfaces have been developed over the years.

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Ultra low water adhesive metal surface for enhanced corrosion protection

Abstract: A superhydrophobic surface with ultra low water adhesive force is fabricated on various metals for enhanced corrosion protection.

Cited by 23 publications

References 38 publications

Stacked Catalytic Membrane Microreactor for Nitrobenzene Hydrogenation

Stacked Catalytic Membrane Microreactor for Nitrobenzene Hydrogenation

Major influence of the hydrophobic chain length in the formation of poly(3,4-propylenedioxypyrrole) (PProDOP) nanofibers with special wetting properties

Superhydrophobic surfaces review: Functional application, fabrication techniques and limitations

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