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Innovation and Application of Advanced Electrochemical Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Energy Materials".

Deadline for manuscript submissions: closed (10 August 2023) | Viewed by 6069

Special Issue Editor

Pavol Jozef Safarik University in Kosicedisabled, Kosice 040 01, Slovakia
Interests: energy storage; energy conversion; corrosion; electroanalysis; self-healing; nanocoatings; hydrogen

Special Issue Information

Dear Colleagues,

Climate change, combined with a growing world population and the high demand for raw materials, places an ever-greater burden on our planet. Additionally, the continuous emergence of new technologies and applications is amazingly fast and supported by mass consumption. New advanced electrochemical materials can help to solve all these problems. Electrochemistry can cover many areas, such as water and air cleaning, waste recycling, clean energy storage and conversion, corrosion, sensors, electronic and medical materials, biodegradable materials, and others. It is a truly multidisciplinary science, and new advanced electrochemical materials can be applied to a variety of fields, from physics or chemistry to biology or medical sciences.

This Special Issue of Materials will focus on different areas, including energy conversion and storage, in particular fuel cells, supercapacitors and Li-ion batteries, solar cells or hydrogen production and storage. Moreover, corrosion processes and reactions, especially for industrial applications, as well as electrodeposition of nanosurfaces or nanocoatings with the aim of higher stability and improved safety and water and air cleaning or waste treatment and recycling will also be covered. Finally, the applicability of electrochemical materials to the biological sciences and medicine will be of interest.

It is our pleasure to invite you to submit a manuscript reporting novel materials and structures, their electrochemical behaviors, fundamental reactions, novel applications, as well as other related topics for this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Andrea Straková Fedorková
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. Materials 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 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.

Keywords

  • energy storage
  • energy conversion
  • biomaterials
  • corrosion
  • electroanalysis
  • self-healing
  • nanocoatings
  • hydrogen
  • sensors
  • water cleaning
  • recycling
  • waste treatment

Published Papers (3 papers)

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Research

13 pages, 6197 KiB  
Article
Microstructural, Mechanical and Corrosion Characteristics of Degradable PM Biomaterials Made from Copper-Coated Iron Powders
by Miriam Kupková, Martin Kupka, Andrea Morovská Turoňová and Renáta Oriňaková
Materials 2022, 15(5), 1913; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15051913 - 04 Mar 2022
Cited by 2 | Viewed by 1367
Abstract
Copper-containing iron-based materials have recently been recognized as potential biomaterials possessing antimicrobial ability. Since then, iron-copper systems have been prepared by different methods and investigated. This article is focused on PM materials made from composite powders. The powders, each particle of which consisted [...] Read more.
Copper-containing iron-based materials have recently been recognized as potential biomaterials possessing antimicrobial ability. Since then, iron-copper systems have been prepared by different methods and investigated. This article is focused on PM materials made from composite powders. The powders, each particle of which consisted of an iron core and a copper shell, were prepared by electroplating. Test-pieces with copper contents of 0, 3.2, and 8 wt.% were fabricated by pressing and sintering from iron and composite powders. Some microstructural, mechanical, and corrosion characteristics of test-pieces were examined. Microstructures were composed of pores and iron grains with alloyed peripheral regions and copper-free cores. As the copper content in test-pieces was increased, their density and Young’s modulus decreased, and macrohardness, corrosion potential and corrosion current density increased. Likely causes of density and Young’s modulus reduction were higher porosity, low enough copper content, and compliant inclusions in stiff matrix. The increase in macrohardness was attributed to the precipitation hardening which prevailed over softening induced by pores. The increase in corrosion potential and corrosion current density was most likely due to the presence of more noble phase providing surfaces for a faster cathodic reaction. Full article
(This article belongs to the Special Issue Innovation and Application of Advanced Electrochemical Materials)
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11 pages, 3499 KiB  
Article
Carrageenan as an Ecological Alternative of Polyvinylidene Difluoride Binder for Li-S Batteries
by Tomáš Kazda, Dominika Capková, Kamil Jaššo, Andrea Fedorková Straková, Elena Shembel, Alex Markevich and Marie Sedlaříková
Materials 2021, 14(19), 5578; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14195578 - 26 Sep 2021
Cited by 13 | Viewed by 1911
Abstract
Lithium-sulfur batteries are one of the most promising battery systems nowadays. However, this system is still not suitable for practical application because of the number of shortcomings that limit its cycle life. One of the main problems related to this system is the [...] Read more.
Lithium-sulfur batteries are one of the most promising battery systems nowadays. However, this system is still not suitable for practical application because of the number of shortcomings that limit its cycle life. One of the main problems related to this system is the volumetric change during cycling. This deficiency can be compensated by using the appropriate binder. In this article, we present the influence of a water-soluble binder carrageenan on the electrochemical properties of the Li-S battery. The electrode with a carrageenan binder provides good stability during cycling and at high C-rates. Electrochemical testing was also carried out with a small prototype pouch cell with a capacity of 16 mAh. This prototype pouch cell with the water-based carrageenan binder showed lower self-discharge and low capacity drop. Capacity decreased by 7% after 70 cycles. Full article
(This article belongs to the Special Issue Innovation and Application of Advanced Electrochemical Materials)
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15 pages, 4305 KiB  
Article
Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression
by Radka Gorejová, Ivana Šišoláková, Pavol Cipa, Róbert Džunda, Tibor Sopčák, Andrej Oriňak and Renáta Oriňaková
Materials 2021, 14(17), 4983; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14174983 - 31 Aug 2021
Cited by 4 | Viewed by 1826
Abstract
Powder metallurgy is one of the most prevalent ways for metallic degradable materials preparation. Knowledge of the properties of initial powders used during this procedure is therefore of great importance. Two different metals, iron and zinc, were selected and studied in this paper [...] Read more.
Powder metallurgy is one of the most prevalent ways for metallic degradable materials preparation. Knowledge of the properties of initial powders used during this procedure is therefore of great importance. Two different metals, iron and zinc, were selected and studied in this paper due to their promising properties in the field of biodegradable implants. Raw powders were studied using scanning electron microscopy (SEM) coupled with energy dispersive spectrometry (EDX). Powders (Fe, Zn and Fe-Zn in a weight ratio of 1:1) were then compressed at the pressure of 545 MPa to the form of pellets with a diameter of 1.7 cm. Surface morphology and degradation behavior in the Hanks´ solution were studied and evaluated. Electrochemical polarization tests along with the static immersion tests carried out for 21 days were employed for corrosion behavior characterization. The highest corrosion rate was observed for pure Zn powder followed by the Fe-Zn and Fe, respectively. A mixed Fe-Zn sample showed similar properties as pure zinc with no signs of iron degradation after 21 days due to the effect of galvanic protection secured by the zinc acting as a sacrificial anode. Full article
(This article belongs to the Special Issue Innovation and Application of Advanced Electrochemical Materials)
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