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Advances in Metal Materials: Electrochemical Characterization and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 2538

Special Issue Editor


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Guest Editor
AIMEN Technology Center, Relva 27A, 36410 O Porriño, Spain
Interests: corrosion; electrochemistry; building; geopolymers; corrosion monitoring; EIS; reinforced concrete

Special Issue Information

Dear Colleagues,

Applied electrochemistry uses numerous methods to progressively improve the quality of life via the study of charge transfer phenomena. Electroanalytical techniques provide unique information about mechanisms and systems that are currently involved in the necessary development of a broad range of technologies, including energy conversion, conservation and storage, new battery systems, supercapacitors, solar cells, industrial synthesis, corrosion, electroplating, electrodeposition, medical application, and sensors. Thus, this Special Issue aims to compile original and innovative studies on electrochemical characterization techniques (such as voltametric techniques, impedance measurement technique, etc.) that are frequently applied to perform electrochemical studies of metallic materials. All these techniques provide clear insight into the interfacial electrochemical behavior between electrode and electrolyte (in an electrochemical cell). Hence, the techniques can be used to understand the various electrochemical behaviors of materials. Energy saving, corrosion prevention and health pose challenges to which electrochemistry can contribute. Additionally, corrosion and protection are among the subjects that requires attention since their mitigation can preserve resources in several industries (in the construction, oil and gas, food, and biomedical industries, for example).

Dr. Lorena Freire
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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2400 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.

Keywords

  • electrochemical techniques
  • EIS
  • voltammetry
  • corrosion
  • oxidation

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Published Papers (2 papers)

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Research

17 pages, 3762 KiB  
Article
Electrochemical Performance of Ti Gr. 2 as Electrodes in Contact with Saline Suspension of Clays during the Electroflotation Process
by Alvaro Soliz, Felipe M. Galleguillos-Madrid, José Ángel Cobos-Murcia, Sebastian Angulo, Sebastian Salazar-Avalos, Bernabé Alonso-Fariñas and Alexis Guzmán
Appl. Sci. 2024, 14(19), 8825; https://doi.org/10.3390/app14198825 - 1 Oct 2024
Viewed by 1155
Abstract
The presence of clays in copper minerals has a significant negative impact during their processing, leading to low recoveries during the flotation process. In saline environments, the presence of these clays promotes operational problems associated with salinity, leading to decreases in the copper [...] Read more.
The presence of clays in copper minerals has a significant negative impact during their processing, leading to low recoveries during the flotation process. In saline environments, the presence of these clays promotes operational problems associated with salinity, leading to decreases in the copper concentrate grade, alterations in the rheology of the mineral pulp, reduction in the selectivity of copper during the flotation process, declines in the quality of clarified water, and excessive corrosion of metallic components. This study explores the electroflotation of kaolinite and montmorillonite clays in NaCl solutions using a modified Hallimond tube coupled with Ti Gr. 2 electrodes for bubble generation via water electrolysis and the corrosion analysis of these electrodes applying the superposition model. The electroflotation results show recovery of clays close to 72.68% for kaolinite, 88.44% for montmorillonite, and 67.36% for a mixture of both clays. The presence of clays helps reduce the corrosive effects of Ti Gr. 2 from 0.069 A/m2 in NaCl to 0.0073 A/m2 in NaCl with montmorillonite clay. Full article
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15 pages, 3305 KiB  
Article
Pitting Corrosion of Steel Pipes in Water Supply Systems: An Influence of Shell-like Layer
by Valentin Chukhin, Alexey Andrianov and Nikolay Makisha
Appl. Sci. 2024, 14(16), 7189; https://doi.org/10.3390/app14167189 - 15 Aug 2024
Viewed by 971
Abstract
The research was aimed at studying pitting corrosion, which precedes the appearance of fistulas in steel and cast-iron pipelines in water supply systems and leads to significant expenditures. The process of fistula formation is accompanied by the formation of tubercles and craters on [...] Read more.
The research was aimed at studying pitting corrosion, which precedes the appearance of fistulas in steel and cast-iron pipelines in water supply systems and leads to significant expenditures. The process of fistula formation is accompanied by the formation of tubercles and craters on the surface of a corroding metal. The study focused on examining the qualitative and quantitative composition of the solution, which is generated inside the tubercles during their growth. It was found that, during the operation of water pipelines, the concentration of aggressive chloride ions inside the tubercles increases significantly compared to the chloride content of the source water. The increase in chloride concentration leads to an accelerated corrosion rate, potentially causing the formation of fistulas over time. As a result of the study, a mechanism for changing the mineral composition of the solution inside the tubercles has been proposed. This is due to the manifestation of selective properties by a dense layer of tubercles. The study also examined the appearance of crystalline forms of corrosion products that form after removing pipes from the water supply system. The study also reveals the conditions of corrosion products emerging. Further studies on the structure and properties of a dense layer of corrosive sediment could be used to evaluate the effectiveness of various corrosion inhibitors. Full article
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