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Advances in Semiconductor / Electrolyte Interfaces Research
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Advances in Semiconductor / Electrolyte Interfaces Research

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

Deadline for manuscript submissions: closed (10 July 2023) | Viewed by 11424

Special Issue Editor

Dr. Elena Alexandrovna Filonova

E-Mail Website
Guest Editor
Department of Physical and Inorganic Chemistry, Ural Federal University, Yekaterinburg, Russia
Interests: solid oxide fuel cells; crystal structure; thermal expansion; chemical compatibility; electrical conductivity

Special Issue Information

Dear Colleagues,

The growing demands for green and sustainable energy have resulted in numerous worldwide investigations of design, validation, and characterization of effective energy storage and energy conversion devices. A deeper understanding of processes occurring at interfaces between constructional parts of the electrochemical devices, such as chemical reactions and a charge transfer, can be a critical point determining an overall cell performance and durability, hampering an acceleration of new devices implementation. Knowledge about the processes happening at the cathode/electrolyte and anode/electrolyte interfaces is extremely important for development of strategies to enhance power density of solid oxide fuel cells, reduce overpotential of solid oxide electrolysis cells, and prolong cycle life of solid state batteries.

The Special Issue "Advances in Semiconductor/Electrolyte Interfaces Research” will address current findings and novel insights in observation and characterization of all types of the physical and chemical processes and emergent properties, occurring at the semiconductor/electrolyte interfaces in electrochemical devices. Articles and reviews, regarding studies of the structure and peculiar properties of heterogeneous interfaces in solid oxide fuel cells, solid oxide electrolysis cells, solid oxide reversible cells, and solid state batteries by means of X-Ray diffraction, X-Ray Photoelectron Spectroscopy, Scanning Electron Microscopy, Transmission Electron Microscopy, and Electrochemical Impedance Spectroscopy, are greatly welcome.

Dr. Elena Alexandrovna Filonova
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

  • solid-state electrolyte
  • interfaces
  • interface characterization
  • interfacial reactions
  • interfacial processes
  • interfacial strategies

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Published Papers (3 papers)

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Research

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15 pages, 48597 KiB  
Article
Nickel-Containing Perovskites, PrNi0.4Fe0.6O3–δ and PrNi0.4Co0.6O3–δ, as Potential Electrodes for Protonic Ceramic Electrochemical Cells
by Artem P. Tarutin, Anna V. Kasyanova, Gennady K. Vdovin, Julia G. Lyagaeva and Dmitry A. Medvedev
Materials 2022, 15(6), 2166; https://doi.org/10.3390/ma15062166 - 15 Mar 2022
Cited by 6 | Viewed by 2557
Abstract
Protonic ceramic fuel cells (PCFCs) offer a convenient means of converting chemical energy into electricity with high performance and efficiency at low- and intermediate-temperature ranges. However, in order to ensure good life-time stability of PCFCs, it is necessary to ensure rational chemical design [...] Read more.
Protonic ceramic fuel cells (PCFCs) offer a convenient means of converting chemical energy into electricity with high performance and efficiency at low- and intermediate-temperature ranges. However, in order to ensure good life-time stability of PCFCs, it is necessary to ensure rational chemical design in functional materials. Within the present work, we propose new Ni-based perovskite phases of PrNi0.4M0.6O3–δ (where M = Co, Fe) for potential utilization in protonic ceramic electrochemical cells. Along with their successful synthesis, functional properties of the PrNi0.4M0.6O3–δ materials, such as chemical compatibility with a number of oxygen-ionic and proton-conducting electrolytes, thermal expansion behavior, electrical conductivity, and electrochemical behavior, were comprehensively studied. According to the obtained data, the Co-containing nickelate exhibits excellent conductivity and polarization behavior; on the other hand, it demonstrates a high reactivity with all studied electrolytes along with elevated thermal expansion coefficients. Conversely, while the iron-based nickelate had superior chemical and thermal compatibility, its transport characteristics were 2–5 times worse. Although, PrNi0.4Co0.6O3–δ and PrNi0.4Fe0.6O3–δ represent some disadvantages, this work provides a promising pathway for further improvement of Ni-based perovskite electrodes. Full article
(This article belongs to the Special Issue Advances in Semiconductor / Electrolyte Interfaces Research)
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Review

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42 pages, 5593 KiB  
Review
Overview of Approaches to Increase the Electrochemical Activity of Conventional Perovskite Air Electrodes
by Elena Filonova and Elena Pikalova
Materials 2023, 16(14), 4967; https://doi.org/10.3390/ma16144967 - 12 Jul 2023
Cited by 16 | Viewed by 2462 | Correction
Abstract
The progressive research trends in the development of low-cost, commercially competitive solid oxide fuel cells with reduced operating temperatures are closely linked to the search for new functional materials as well as technologies to improve the properties of established materials traditionally used in [...] Read more.
The progressive research trends in the development of low-cost, commercially competitive solid oxide fuel cells with reduced operating temperatures are closely linked to the search for new functional materials as well as technologies to improve the properties of established materials traditionally used in high-temperature devices. Significant efforts are being made to improve air electrodes, which significantly contribute to the degradation of cell performance due to low oxygen reduction reaction kinetics at reduced temperatures. The present review summarizes the basic information on the methods to improve the electrochemical performance of conventional air electrodes with perovskite structure, such as lanthanum strontium manganite (LSM) and lanthanum strontium cobaltite ferrite (LSCF), to make them suitable for application in second generation electrochemical cells operating at medium and low temperatures. In addition, the information presented in this review may serve as a background for further implementation of developed electrode modification technologies involving novel, recently investigated electrode materials. Full article
(This article belongs to the Special Issue Advances in Semiconductor / Electrolyte Interfaces Research)
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43 pages, 9635 KiB  
Review
High-Entropy Materials in SOFC Technology: Theoretical Foundations for Their Creation, Features of Synthesis, and Recent Achievements
by Elena Y. Pikalova, Elena G. Kalinina, Nadezhda S. Pikalova and Elena A. Filonova
Materials 2022, 15(24), 8783; https://doi.org/10.3390/ma15248783 - 8 Dec 2022
Cited by 30 | Viewed by 5495
Abstract
In this review, recent achievements in the application of high-entropy alloys (HEAs) and high-entropy oxides (HEOs) in the technology of solid oxide fuel cells (SOFC) are discussed for the first time. The mechanisms of the stabilization of a high-entropy state in such materials, [...] Read more.
In this review, recent achievements in the application of high-entropy alloys (HEAs) and high-entropy oxides (HEOs) in the technology of solid oxide fuel cells (SOFC) are discussed for the first time. The mechanisms of the stabilization of a high-entropy state in such materials, as well as the effect of structural and charge factors on the stability of the resulting homogeneous solid solution are performed. An introduction to the synthesis methods for HEAs and HEOs is given. The review highlights such advantages of high-entropy materials as high strength and the sluggish diffusion of components, which are promising for the use at the elevated temperatures, which are characteristic of SOFCs. Application of the medium- and high-entropy materials in the hydrocarbon-fueled SOFCs as protective layers for interconnectors and as anode components, caused by their high stability, are covered. High-entropy solid electrolytes are discussed in comparison with traditional electrolyte materials in terms of conductivity. High-entropy oxides are considered as prospective cathodes for SOFCs due to their superior electrochemical activity and long-term stability compared with the conventional perovskites. The present review also determines the prioritizing directions in the future development of high-entropy materials as electrolytes and electrodes for SOFCs operating in the intermediate and low temperature ranges. Full article
(This article belongs to the Special Issue Advances in Semiconductor / Electrolyte Interfaces Research)
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