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Coatings
Special Issues
Nanostructured Functional Coatings
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Nanostructured Functional Coatings

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (31 July 2018) | Viewed by 36264

Special Issue Editor

Prof. Dr. Kyong Yop Rhee

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si 17104, Gyeonggi-do, Republic of Korea
Interests: surface treatment; bonding; composites materials; fracture; corrosion
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanostructured functional coatings are among the most highly-exploited research areas during last decade in the field of material science. Having applications ranging from automobile industries to sensor technologies, it has always had accelerated advancements. To name a few, the use of nano-additives has opened a whole new gateway towards hydrophobicity and self-cleaning studies. The applications are endless; however, challenges like proper dispersion in matrix and control over interfacial interactions are yet to be completely resolved. Towards this goal, we are assembling a Special Issue of journal Coatings to encourage researchers worldwide and to provide them with a platform to publish their novel studies and to offer chance to submit their valuable reviews, beyond the conventional protection and decoration properties. The theme of this Special Issue broadly includes (but is not limited to):

  • Photoluminescent or photocatalytic coatings
  • Hydrophilic or hydrophobic coatings
  • Bio-compatible coatings
  • Hard coatings
  • Conductive coatings
  • Heat resistant coatings
  • Anti-corrosion coatings
  • Novel coatings and characterizations.

We hope to receive your valuable input and to make this a successful issue.

Prof. Dr. Kyong Yop Rhee
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (5 papers)

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Research

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12 pages, 5552 KiB  
Article
Influence of TiO2-Coating Layer on Nanoporous Alumina Membranes by ALD Technique
by Lourdes Gelde, Ana L. Cuevas, María Del Valle Martínez de Yuso, Juana Benavente, Víctor Vega, Ana Silvia González, Víctor M. Prida and Blanca Hernando
Coatings 2018, 8(2), 60; https://doi.org/10.3390/coatings8020060 - 07 Feb 2018
Cited by 13 | Viewed by 4749
Abstract
Geometrical, chemical, optical and ionic transport changes associated with ALD of TiO2-coating on the porous structure of two nanoporous alumina membranes (NPAMs), which were obtained by the two-step aluminum anodization method but with different pore size and porosity, are presented. Chemical [...] Read more.
Geometrical, chemical, optical and ionic transport changes associated with ALD of TiO2-coating on the porous structure of two nanoporous alumina membranes (NPAMs), which were obtained by the two-step aluminum anodization method but with different pore size and porosity, are presented. Chemical and morphological changes were determined by analyzing XPS spectra and SEM images, showing practically total coverage of the NPAMs surface and leading to a reduction in the geometrical parameters of both samples, while SAED and high resolution TEM measurements allowed us to determine the crystalline structure and thickness of the TiO2-coating, with the latter confirmed by depth-profile XPS analysis. Spectroscopic ellipsometry measurements were also carried out in order to detect changes in characteristic optical parameters (refractive index, n, and extinction coefficient, k), due to the TiO2-coating of NPAMs. Considering the common application of NPAMs in solute/ion diffusion processes, the effect of the TiO2-coverage on electrochemical parameters was analyzed by measuring the concentration potential with a typical model electrolyte (KCl solutions), leading to an increase of the electropositive character for both kinds of samples. Full article
(This article belongs to the Special Issue Nanostructured Functional Coatings)
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4096 KiB  
Article
The Effect of Glancing Angle Deposition Conditions on the Morphology of a Silver Nanohelix Array
by Yi-Jun Jen, Yueh Weng Lin, Yu-Jie Huang and Teh-Li Chan
Coatings 2017, 7(9), 140; https://doi.org/10.3390/coatings7090140 - 04 Sep 2017
Cited by 6 | Viewed by 4833
Abstract
Silver nanohelices were grown on smooth substrates using glancing angle deposition and substrate cooling. Various nanohelix arrays were deposited under different deposition conditions—different deposition rates, substrate spin rates, deposition angles, and substrate temperatures. The effect of deposition conditions on the morphology of each [...] Read more.
Silver nanohelices were grown on smooth substrates using glancing angle deposition and substrate cooling. Various nanohelix arrays were deposited under different deposition conditions—different deposition rates, substrate spin rates, deposition angles, and substrate temperatures. The effect of deposition conditions on the morphology of each nanohelix array in terms of pitch angle, pitch length, wire diameter, and radius of curvature was investigated. The dependence of circular dichroism on the size of the nanohelix arrays was also measured and demonstrated. Full article
(This article belongs to the Special Issue Nanostructured Functional Coatings)
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3255 KiB  
Article
Thermal Transport on Graphene-Based Thin Films Prepared by Chemical Exfoliations from Carbon Nanotubes and Graphite Powders
by Jian-De Xie, Si-Yong Gu and Houan Zhang
Coatings 2017, 7(9), 138; https://doi.org/10.3390/coatings7090138 - 03 Sep 2017
Cited by 3 | Viewed by 4283
Abstract
Thermal conductivities (k) of different graphene nanosheet (GN)-based heat sinks are investigated within the temperature range of 323–423 K. One- and two-step modified Hummers’ methods are adopted to chemically exfoliate GNs from two kinds of carbon precursors: carbon nanotubes (CNTs) and [...] Read more.
Thermal conductivities (k) of different graphene nanosheet (GN)-based heat sinks are investigated within the temperature range of 323–423 K. One- and two-step modified Hummers’ methods are adopted to chemically exfoliate GNs from two kinds of carbon precursors: carbon nanotubes (CNTs) and graphite powders. The two-step method offers an improved exfoliation level of GN products, especially for the CNT precursor. Experimental results show that the GN-based heat sink—exfoliated from graphite powders after the two-step approach—delivers an enhanced k value to 2507 W/m K at 323 K, as compared to the others. The k value is found to be a decreasing function of the porosity of the heat sink, revealing the importance of solid/void fraction (i.e., volumetric heat capacity). The improved thermal efficiency mainly originates from the long phonon mean free path and the low void fraction of GN-based heat sinks, thus inducing highly efficient thermal transport in the GN framework. Full article
(This article belongs to the Special Issue Nanostructured Functional Coatings)
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Review

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27 pages, 6282 KiB  
Review
A Review of Conductive Metal Nanomaterials as Conductive, Transparent, and Flexible Coatings, Thin Films, and Conductive Fillers: Different Deposition Methods and Applications
by Samira Naghdi, Kyong Yop Rhee, David Hui and Soo Jin Park
Coatings 2018, 8(8), 278; https://doi.org/10.3390/coatings8080278 - 09 Aug 2018
Cited by 171 | Viewed by 15627
Abstract
With ever-increasing demand for lightweight, small, and portable devices, the rate of production of electronic and optoelectronic devices is constantly increasing, and alternatives to the current heavy, voluminous, fragile, conductive and transparent materials will inevitably be needed in the future. Conductive metal nanomaterials [...] Read more.
With ever-increasing demand for lightweight, small, and portable devices, the rate of production of electronic and optoelectronic devices is constantly increasing, and alternatives to the current heavy, voluminous, fragile, conductive and transparent materials will inevitably be needed in the future. Conductive metal nanomaterials (such as silver, gold, copper, zinc oxide, aluminum, and tin) and carbon-based conductive materials (carbon nanotubes and graphene) exhibit great promise as alternatives to conventional conductive materials. Successfully incorporating conductive nanomaterials into thin films would combine their excellent electrical and optical properties with versatile mechanical characteristics superior to those of conventional conductive materials. In this review, the different conductive metal nanomaterials are introduced, and the challenges facing methods of thin film deposition and applications of thin films as conductive coatings are investigated. Full article
(This article belongs to the Special Issue Nanostructured Functional Coatings)
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35 pages, 10290 KiB  
Review
Design of Nanostructured Functional Coatings by Using Wet-Chemistry Methods
by Pedro J. Rivero, Jose A. Garcia, Iban Quintana and Rafael Rodriguez
Coatings 2018, 8(2), 76; https://doi.org/10.3390/coatings8020076 - 14 Feb 2018
Cited by 22 | Viewed by 5982
Abstract
This review reports the implementation of novel nanostructured functional coatings by using different surface engineering techniques based on wet chemistry. In the first section, the theoretical fundaments of three techniques such as sol-gel process, layer-by-layer (LbL) assembly and electrospinning will be briefly described. [...] Read more.
This review reports the implementation of novel nanostructured functional coatings by using different surface engineering techniques based on wet chemistry. In the first section, the theoretical fundaments of three techniques such as sol-gel process, layer-by-layer (LbL) assembly and electrospinning will be briefly described. In the second section, selected applications in different potential fields will be presented gathering relevant properties such as superhydrophobicity, biocide behavior or applications in the field of optical fiber sensors. Full article
(This article belongs to the Special Issue Nanostructured Functional Coatings)
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