Robust Ni/WC superhydrophobic surfaces by electrodeposition

Zhao, Guochen; Li, Jinshang; Huang, Yuanfeng; Yang, Liming; Ye, Ying; Walsh, Frank C.; Chen, Jie; Wang, Shuncai

doi:10.1039/c7ra08535d

Cited by 41 publications

(23 citation statements)

References 55 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been observed that metal deposition can occur on both incorporated conductive particles and the electrode surface. Under same deposition conditions, a more conductive particle could lead to a more porous composite coating structure [10,22]. Simulation work by Celis et al [23] showed a higher current density distribution on the incorporated conductive particles on the surface of the cathode, leading to a localised acceleration of metal deposition that leads to dendritic or nodular structure growth.…”

Section: Particle Size Distribution and Zeta Potential In Dispersionsmentioning

confidence: 99%

Effective particle dispersion via high-shear mixing of the electrolyte for electroplating a nickel-molybdenum disulphide composite

Zhou

Wang

Walsh

2018

Electrochimica Acta

Self Cite

View full text Add to dashboard Cite

The hydrophobic nature of molybdenum disulphide (MoS2) particles is a major challenge for electrodepositing uniform Ni-MoS2 composite coatings due to particle agglomerates present in the aqueous nickel plating bath. In this study, high-shear mixing was shown for the first time as a facile and effective way to achieve a narrow particle-size distribution and stable particle dispersions in the electrolyte, which were characterised by measuring particle-size distributions via dynamic light scattering. The influence of shear mixing duration and speed on particle dispersion in the electrolyte was investigated. The resulting Ni-MoS2 composite coating had a compact structure, showing a lower coefficient of friction and enhanced wear resistance in unlubricated wear tests. In comparison, magnetic stirring was less effective in breaking down particle agglomerates in the bath, which led to a porous and fragile deposit with poor tribological properties.

show abstract

Section: Particle Size Distribution and Zeta Potential In Dispersionsmentioning

confidence: 99%

Effective particle dispersion via high-shear mixing of the electrolyte for electroplating a nickel-molybdenum disulphide composite

Zhou

Wang

Walsh

2018

Electrochimica Acta

Self Cite

View full text Add to dashboard Cite

show abstract

“…A general strategy to evaluate mechanical stability was suggested by Tian et al (Figure 16). They reported that the linear abrasion test appears to best fulfill this requirement [90], which also is the most common applied manner to test robustness of super-hydrophobic surface in recent years [49,55,[85][86][87][91][92][93]. For instance, Lu et al created an ethanol-based suspension containing perfluorooctyltriethoxysilane coated dual-scale TiO 2 nanoparticles, which could be coated onto steel surface to create super-hydrophobicity by facile spray, dipping, or painting [85].…”

Section: Mechanical Stabilitymentioning

confidence: 99%

Robust Super-Hydrophobic Coating Prepared by Electrochemical Surface Engineering for Corrosion Protection

Zhao

et al. 2019

Coatings

View full text Add to dashboard Cite

Corrosion—reactions occuring between engineering materials and their environment—can cause material failure and catastrophic accidents, which have a serious impact on economic development and social stability. Recently, super-hydrophobic coatings have received much attention due to their effectiveness in preventing engineering materials from further corrosion. In this paper, basic principles of wetting properties and corrosion protection mechanism of super-hydrophobic coatings are introduced firstly. Secondly, the fabrication methods by electrochemical surface engineering—including electrochemical anodization, micro-arc oxidation, electrochemical etching, and deposition—are presented. Finally, the stabilities and future directions of super-hydrophobic coatings are discussed in order to promote the movement of such coatings into real-world applications. The objective of this review is to bring a brief overview of the recent progress in the fabrication of super-hydrophobic coatings by electrochemical surface methods for corrosion protection of engineering materials.

show abstract

“…Recent work has sought to produce more robust surfaces. Zhao et al . have recently described Ni‐WC composite electrodeposits modified by stearic acid.…”

Section: Applicationsmentioning

confidence: 99%

“…Recent work has sought to produce more robust surfaces. Zhao et al 56 have recently described Ni-WC composite electrodeposits modified by stearic acid. These coatings retained their superhydrophobicity after a 450-cm long SiC abrasion test.…”

Section: Coatings and Surface Finishesmentioning

confidence: 99%

Developments in electrode design: structure, decoration and applications of electrodes for electrochemical technology

Walsh

Arenas

León

2018

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

The diversity of cell geometries and their use for electrochemical processing and energy conversion are concisely reviewed, updating earlier treatments, with an emphasis on an engineering approach to electrode design. Electrode size varies from several cm2 in the laboratory to stacks containing hundreds of m2 at the industrial plant scale, and currents can range from nA at laboratory to many 100 kA in industry. Electrode materials include metals, conductive ceramics and polymers, as well as polymer–metal or ceramic–metal composites. Area, electrocatalytic activity and functionality can be tailored by selecting an appropriate support structure‐coating combination. The core structure of porous supports can be a foam, mesh or particulate bed, whereas the surface can be enhanced using numerous techniques. Inspiration for electrode design can come from multiple sources, including biomimetics and technology transfer. Important aspects of electrodes include manufacture, electrochemical activity, active area, the possibilities of 3D and nanostructured surfaces, decoration and functionalization, in addition to reasonable cost and adequate lifetime. The diversity of electrodes is illustrated by examples from the authors' laboratory in the fields of inorganic and organic synthesis, environmental remediation of wastewaters, surface finishing of materials and energy storage/conversion. A forward look is made to potential future developments in electrochemical technology. © 2018 Society of Chemical Industry

show abstract

Robust Ni/WC superhydrophobic surfaces by electrodeposition

Abstract: The mechanical properties of superhydrophobic surfaces based on nickel composite coatings was enhanced by co-deposition of tungsten carbide. After modified by stearic acid, the surfaces showed excellent water-repellence and abrasive resistance.

Cited by 41 publications

References 55 publications

Effective particle dispersion via high-shear mixing of the electrolyte for electroplating a nickel-molybdenum disulphide composite

Effective particle dispersion via high-shear mixing of the electrolyte for electroplating a nickel-molybdenum disulphide composite

Robust Super-Hydrophobic Coating Prepared by Electrochemical Surface Engineering for Corrosion Protection

Developments in electrode design: structure, decoration and applications of electrodes for electrochemical technology

Contact Info

Product

Resources

About