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Innovative Surface Treatments and Coatings Involving Electrochemical Deposition
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Innovative Surface Treatments and Coatings Involving Electrochemical Deposition

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

Deadline for manuscript submissions: closed (15 October 2020) | Viewed by 13057

Special Issue Editor

Dr. Liana Anicǎi

E-Mail Website
Guest Editor
Centre for Surface Science and Nanotechnology, POLITEHNICA University of Bucharest, Splaiul Independentei 313, Bucharest, 060042, Romania
Interests: electrochemical processes and technologies; electrodeposition of metals and alloys in aqueous and ionic liquids based electrolytes; chemical surface treatments; corrosion and corrosion protection; anodization; nanoparticles and nanowires synthesis involving electrochemical procedures; composite coatings with carbon nanomaterials.
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on “Innovative Surface Treatments and Coatings Involving Electrochemical Deposition”.

New solutions for a large range of industrial sectors are currently closely connected through the development and promotion of improved and innovative surface treatments and coatings as well as of the related process technologies.

Even electrochemical deposition has become a well-known technology, providing certain advantages over other material deposition techniques. New concepts, the need for more environmentally-friendly electrolytes that are able to comply with the current legislation, novel applications, and developments in the field of nanomaterials for the next generation of miniaturized devices make scientific research on this topic very attractive.

Recent advances in electrochemical processes including the use of non-aqueous electrolytes such as room temperature ionic liquids (ILs) and of refined pulsed deposition schemes have significantly contributed to the interest in these techniques. IL-based electrolytes enable the deposition of materials that cannot be currently deposited from aqueous solutions or which may provide enhanced functionalities. Pulsed electrochemical deposition facilitates the fabrication of nanowire and nanotube arrays of metals, alloys, semiconductors, and conducting polymers.

A wide range of metal and alloy coatings offer various structural or functional characteristics, including improved mechanical properties, chemical and corrosion resistance, and biocompatibility. They can act as (electro)catalytic materials or may provide (multi)functional properties such as optical, electromagnetic, thermoelectrical ones, etc.

The aim of this Special Issue is to publish original research articles and critical reviews on all aspects related to recent advances in the electrodeposition and characterization of innovative metal and alloy coatings from leading groups from academia and industry.

In particular, the topics of interest include but are not limited to:

  • Electrodeposition of alloys with enhanced corrosion and tribocorrosion resistance;
  • Electrodeposition of micro- and nanoporous metallic structures with applications in sensing, (electro)catalysis, filtration, supercapacitors or batteries;
  • Electrodeposition of micro- and nanostructured thermoelectric materials;
  • Electrodeposition of high-performance nanostructured metal and alloy coatings using ionic liquids;
  • Electrodeposition of composite coatings.

Dr. Liana Anicǎi
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.

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Published Papers (3 papers)

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Research

14 pages, 5069 KiB  
Article
Comparative Study of Ni-Sn Alloys Electrodeposited from Choline Chloride-Based Ionic Liquids in Direct and Pulsed Current
by Sabrina Patricia Rosoiu, Aida Ghiulnare Pantazi, Aurora Petica, Anca Cojocaru, Stefania Costovici, Caterina Zanella, Teodor Visan, Liana Anicai and Marius Enachescu
Coatings 2019, 9(12), 801; https://doi.org/10.3390/coatings9120801 - 29 Nov 2019
Cited by 11 | Viewed by 4421
Abstract
This work presents, for the first time, the electrodeposition of Ni-Sn alloys in pulse current, from deep eutectic solvents (choline chloride: ethylene glycol eutectic mixture). Additionally, in this study, we report a comparison of the electrodeposition methods known as pulse and direct current. [...] Read more.
This work presents, for the first time, the electrodeposition of Ni-Sn alloys in pulse current, from deep eutectic solvents (choline chloride: ethylene glycol eutectic mixture). Additionally, in this study, we report a comparison of the electrodeposition methods known as pulse and direct current. The elemental composition of the films, evaluated from EDX, remained almost constant independently on the electrodeposition parameters. The XRD data revealed the presence of the NiSn metastable phase, which has been confirmed by DSC analysis. This phase shows a nanocrystalline structure with crystallite sizes between 12 and 20 nm. The use of pulse current electrodeposition method has led to an improvement of alloys’ mechanical properties. Moreover, by controlling the electrodeposition parameters, we succeeded in tuning the mechanical properties of the coatings prepared through the PC method. We showed that the hardness parameters exhibited by the Ni-Sn alloys are strongly dependent on their crystallite sizes. Full article
(This article belongs to the Special Issue Innovative Surface Treatments and Coatings Involving Electrochemical Deposition)
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14 pages, 3497 KiB  
Article
Electrodeposition of Sn–In Alloys Involving Deep Eutectic Solvents
by Liana Anicai, Aurora Petica, Stefania Costovici, Calin Moise, Oana Brincoveanu and Teodor Visan
Coatings 2019, 9(12), 800; https://doi.org/10.3390/coatings9120800 - 28 Nov 2019
Cited by 7 | Viewed by 3778
Abstract
Tin–indium alloys represent attractive lead-free solder candidates. They show lower values of melting point than pure indium, so that they are investigated as materials with significant applications potential in the electronic industry. Electrodeposition is a very convenient route to prepare Sn–In alloys. The [...] Read more.
Tin–indium alloys represent attractive lead-free solder candidates. They show lower values of melting point than pure indium, so that they are investigated as materials with significant applications potential in the electronic industry. Electrodeposition is a very convenient route to prepare Sn–In alloys. The paper presents several experimental results regarding the electrodeposition of Sn–In alloy coatings involving deep eutectic solvents (DESs), namely using choline chloride-ethylene glycol eutectic mixtures. The influence of the main operating parameters on the Sn–In alloy composition and characteristics are presented. Adherent and uniform Sn–In alloy deposits containing 10–65 wt % In have been obtained on Cu substrates. The In content was found to increase as both the In:Sn molar concentration ratio of ionic species in the electrolyte and the applied temperature increased. The use of pulsed current allowed the use of higher current densities leading to slightly higher values of In content in the alloy deposit. X-ray diffraction (XRD) analysis revealed the presence of InSn4 and In3Sn phases in agreement with the phase diagram. According to thermogravimetric analysis (TGA) measurements, values of melting points in the range of 118.6 and 127.5 °C were obtained depending on the alloy composition. The solder joints’ behavior and alloy coatings corrosion performance were also discussed. Full article
(This article belongs to the Special Issue Innovative Surface Treatments and Coatings Involving Electrochemical Deposition)
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24 pages, 12603 KiB  
Article
Electrodeposition of Sn and Sn Composites with Carbon Materials Using Choline Chloride-Based Ionic Liquids
by Ana T. S. C. Brandão, Liana Anicai, Oana Andreea Lazar, Sabrina Rosoiu, Aida Pantazi, Renata Costa, Marius Enachescu, Carlos M. Pereira and A. Fernando Silva
Coatings 2019, 9(12), 798; https://doi.org/10.3390/coatings9120798 - 27 Nov 2019
Cited by 8 | Viewed by 4375
Abstract
Nano carbons, such as graphene and carbon nanotubes, show very interesting electrochemical properties and are becoming a focus of interest in many areas, including electrodeposition of carbon–metal composites for battery application. The aim of this study was to incorporate carbon materials (namely oxidized [...] Read more.
Nano carbons, such as graphene and carbon nanotubes, show very interesting electrochemical properties and are becoming a focus of interest in many areas, including electrodeposition of carbon–metal composites for battery application. The aim of this study was to incorporate carbon materials (namely oxidized multi-walled carbon nanotubes (ox-MWCNT), pristine multi-walled carbon nanotubes (P-MWCNT), and reduced graphene oxide (rGO)) into a metallic tin matrix. Formation of the carbon–tin composite materials was achieved by electrodeposition from a choline chloride-based ionic solvent. The different structures and treatments of the carbon materials will create metallic composites with different characteristics. The electrochemical characterization of Sn and Sn composites was performed using chronoamperometry, potentiometry, electrochemical impedance, and cyclic voltammetry. The initial growth stages of Sn and Sn composites were characterized by a glassy-carbon (GC) electrode surface. Nucleation studies were carried out, and the effect of the carbon materials was characterized using the Scharifker and Hills (SH) and Scharifker and Mostany (SM) models. Through a non-linear fitting method, it was shown that the nucleation of Sn and Sn composites on a GC surface occurred through a 3D instantaneous process with growth controlled by diffusion. According to Raman and XRD analysis, carbon materials were successfully incorporated at the Sn matrix. AFM and SEM images showed that the carbon incorporation influences the coverage of the surface as well as the size and shape of the agglomerate. From the analysis of the corrosion tests, it is possible to say that Sn-composite films exhibit a comparable or slightly better corrosion performance as compared to pure Sn films. Full article
(This article belongs to the Special Issue Innovative Surface Treatments and Coatings Involving Electrochemical Deposition)
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