Special Issue "Thin Films and Patterned Structures by Electrochemical Methods"

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

Deadline for manuscript submissions: 15 March 2018

Special Issue Editors

Guest Editor
Dr. Eva Pellicer

Ramon y Cajal Researcher, Gnm3 group, Physics Department, Cc (C3/210) building, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
Website | E-Mail
Interests: electrodeposition; metallic micro- and nanostructures; ordered mesoporous metal oxides; nanocasting; magnetic properties; electrocatalytic properties
Guest Editor
Prof. Dr. Jordi Sort

Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism, Physics Department, Sciences Faculty, Building Cc, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
Website | E-Mail
Interests: thin films; lithographed structures; nanomagnetism; mechanical properties

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on "Thin Films and Patterned Structures by Electrochemical Methods". Among the diverse techniques to grow continuous or patterned metallic films (chemical vapour deposition, physical vapour deposition, sputtering, etc.), electrodeposition (ED) stands out from the rest for several reasons: simple set-up; cost-effectiveness; it works at ambient pressure; deposition can be performed onto a wide variety of substrate shapes (also parts with undercuts); ease of operation; fast deposition rates; and ability to grow relatively thick homogeneous coatings. ED allows fine-tuning of the properties of deposits by modulating factors such as the pH and temperature of the electrolytic bath, additives, the deposition mode (direct versus pulse methods), etc. Furthermore, ED is widely employed for the fabrication of multilayered coatings consisting of few nanometer-thick alternating layers, composites made of nanoparticles embedded in a metallic matrix, 1D nanostructures (nanowires, nanopillars, nanotubes) and 0D (nanoparticles). In combination with photolithography or e-beam lithography, ED has been used to fabricate relatively complex wirelessly controllable 3D micromachines and diverse MEMS/NEMS devices. Besides the use of ED to grow protective coatings, this technique has also found appealing applications in a large variety of technological areas, such as magnetism, tribology and tribo-corrosion, biomedicine or (electro)-catalysis, amongst others.

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

  • Synthesis and structural characterization of electrodeposited functional coatings (metals, metallic alloys, polymers and oxides);
  • Electrodeposition of arrays of patterned micro- and nanostructures;
  • Green electrodeposition for sustainability applications;
  • Electrocatalysis based on fully-dense and porous films, micro- and nanostructures;
  • Magnetic performance of electrodeposited films and multilayers;
  • Corrosion and tribocorrosion resistance of electrodeposited coatings;
  • Mechanical and wear properties of electrodeposited thin films.

Dr. Eva Pellicer
Prof. Dr. Jordi Sort
Guest Editors

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 papers will be 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 850 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 (4 papers)

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Research

Open AccessArticle Ammonia Generation via a Graphene-Coated Nickel Catalyst
Coatings 2017, 7(6), 72; doi:10.3390/coatings7060072
Received: 25 March 2017 / Revised: 7 May 2017 / Accepted: 16 May 2017 / Published: 27 May 2017
Cited by 1 | PDF Full-text (6159 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
A novel graphene-coated Ni electrode was developed in this investigation to improve corrosion resistance while unexpectedly enhancing the ammonia generation rate in the electrochemically induced urea to ammonia (eU2A) process, which is an electrochemical onsite ammonia generation method. The development of the electrode
[...] Read more.
A novel graphene-coated Ni electrode was developed in this investigation to improve corrosion resistance while unexpectedly enhancing the ammonia generation rate in the electrochemically induced urea to ammonia (eU2A) process, which is an electrochemical onsite ammonia generation method. The development of the electrode is crucial for the eU2A reactions since in the ammonia generation process, the concentration of ammonia is inevitably high on the surface of the electrode, leading to severe corrosion of the electrode and the loss of generated ammonia as well. In this paper, the graphene was derived from raw coal by using the chemical vapor deposition method and self-lifted onto a Ni electrode to form a protective layer for corrosion prevention. Transmission electron microscopy showed the synthesized graphene had few-layers and Raman spectroscopy indicated that the coating of graphene was stable during the eU2A reaction. As a result, the ammonia corrosion of the Ni electrode was dramatically reduced by ~20 times with the graphene coating method. More importantly, a higher ammonia generation rate (~2 times) was achieved using the graphene-coated Ni working electrode compared to a bare Ni electrode in the eU2A process. Full article
(This article belongs to the Special Issue Thin Films and Patterned Structures by Electrochemical Methods)
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Open AccessArticle Statistical Determination of a Fretting-Induced Failure of an Electro-Deposited Coating
Coatings 2017, 7(4), 48; doi:10.3390/coatings7040048
Received: 22 February 2017 / Revised: 24 March 2017 / Accepted: 29 March 2017 / Published: 31 March 2017
PDF Full-text (3203 KB) | HTML Full-text | XML Full-text
Abstract
This paper describes statistical determination of fretting-induced failure of an electro-deposited coating. A fretting test is conducted using a ball-on-flat plate configuration. During a test, a frictional force is measured, along with the relative displacement between an AISI52100 ball and a coated flat
[...] Read more.
This paper describes statistical determination of fretting-induced failure of an electro-deposited coating. A fretting test is conducted using a ball-on-flat plate configuration. During a test, a frictional force is measured, along with the relative displacement between an AISI52100 ball and a coated flat specimen. Measured data are analyzed with statistical process control tools; a frictional force versus number of fretting cycles is plotted on a control chart. On the control chart, critical number of cycles to coating failure is statistically determined. Fretted surfaces are observed after interrupting a series of fretting tests. Worn surface images and wear profiles provide that the increase on the kinetic friction coefficient after a steady-state sliding is attributed to the substrate enlarged at a contact surface. There is a good agreement between observation of worn surfaces and statistical determination for fretting-induced coating failure. Full article
(This article belongs to the Special Issue Thin Films and Patterned Structures by Electrochemical Methods)
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Open AccessArticle Static and Dynamic Magnetization Investigation in Permalloy Electrodeposited onto High Resistive N-Type Silicon Substrates
Coatings 2017, 7(2), 33; doi:10.3390/coatings7020033
Received: 19 December 2016 / Revised: 13 February 2017 / Accepted: 15 February 2017 / Published: 20 February 2017
PDF Full-text (4462 KB) | HTML Full-text | XML Full-text
Abstract
The present study reports on the development of permalloy thin films obtained by electrodeposition onto low-doped n-type silicon substrates. While changing from non-percolated clusters into percolated thin films upon increasing the electrodeposition time, the static and dynamic magnetic properties of the as-obtained structures
[...] Read more.
The present study reports on the development of permalloy thin films obtained by electrodeposition onto low-doped n-type silicon substrates. While changing from non-percolated clusters into percolated thin films upon increasing the electrodeposition time, the static and dynamic magnetic properties of the as-obtained structures were investigated. We found the experimental magnetic results to be in very good agreement with the simulations performed by solving the Landau-Lifshitz for the dynamics of the magnetic moment. For short electrodeposition times we found the static and dynamic magnetization behavior of the as-formed nanoclusters evidencing vortex magnetization with random chirality and polarization, which is explained in terms of dipolar interaction minimization. Indeed, it is herein emphasized that recent applications of ferromagnetic materials in silicon-based spintronic devices, such as logic and bipolar magnetic transistors and magnetic memories, have revived the possible utilization of low cost and simple electrodeposition techniques for the development of these upcoming hetero-nanostructured devices. Full article
(This article belongs to the Special Issue Thin Films and Patterned Structures by Electrochemical Methods)
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Open AccessCommunication Local Electrical Response in Alkaline-Doped Electrodeposited CuInSe2/Cu Films
Coatings 2016, 6(4), 71; doi:10.3390/coatings6040071
Received: 13 October 2016 / Revised: 13 December 2016 / Accepted: 14 December 2016 / Published: 20 December 2016
PDF Full-text (3840 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
The local electrical response in alkaline-doped CuInSe2 films prepared by single-step electrodeposition onto Cu substrates was studied by current-sensing atomic force microscopy. The CuInSe2 (CIS) films were prepared from single baths containing the dopant ions (Li, Na, K or Cs) and
[...] Read more.
The local electrical response in alkaline-doped CuInSe2 films prepared by single-step electrodeposition onto Cu substrates was studied by current-sensing atomic force microscopy. The CuInSe2 (CIS) films were prepared from single baths containing the dopant ions (Li, Na, K or Cs) and were studied by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and photocurrent response. Increased crystallinity and surface texturing as the ion size increased were observed, as well as an enhanced photocurrent response in Cs-doped CIS. Li- and Na-doped films had larger conductivity than the undoped film while the K- and Cs-doped samples displayed shorter currents and the current images indicated strong charge accumulation in the K- and Cs-doped films, forming surface capacitors. Corrected current-sensing AFM IV curves were adjusted with the Shockley equation. Full article
(This article belongs to the Special Issue Thin Films and Patterned Structures by Electrochemical Methods)
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