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Materials and Components for Solid Oxide Based Electrochemical Cells
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Materials and Components for Solid Oxide Based Electrochemical Cells

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

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 5254

Special Issue Editor

Dr. Massimiliano Lo Faro

E-Mail Website
Guest Editor
Istituto di Tecnologie Avanzate per l'Energia "Nicola Giordano" (ITAE-CNR), Itae, Messina, Italy
Interests: fuel cell; electrolyser; sensor; battery; air treatment device; protonic conductors; oxygen ion conductors; cermets; electrochemistry; mixed ionic electronic conductors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue aims to rapidly disseminate the most recent results concerning materials and components for solid oxide electrochemical cells. These electrochemical cells may potentially solve several issues in various sectors, such as monitoring of gases (i.e., industries, automobiles, etc.), production of energy (a combination of thermal and electrical energy), storage (batteries and supercapacitors), and production of fuels from wastes and treatment of pollutants in gas (persistent organic pollutant).

Therefore, this Special Issue addresses topics related to high-temperature electrochemical cells with the aim to explore the potentiality of smart materials and components for future applications able to reduce or eliminate the environmental impact and the existing hurdles of conventional technologies.

Topics considered include research in and development and application of materials and components for solid oxide electrochemical cells and may concern aspects such as:

  • Detailed thermodynamics;
  • Detailed physical–chemical, electrochemical, and/or mechanical properties;
  • Fundamental analysis and modeling;
  • Analysis of requirements and cost estimate for large-scale production and operation;
  • Analysis of the environment impact.

Dr. Massimiliano Lo Faro
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

  • fuel cell
  • electrolyser
  • sensor
  • battery
  • air treatment device
  • protonic conductors
  • oxygen ion conductors
  • cermets
  • electrochemistry
  • mixed ionic electronic conductors

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Published Papers (1 paper)

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Review

18 pages, 3312 KiB  
Review
Lanthanum Ferrites-Based Exsolved Perovskites as Fuel-Flexible Anode for Solid Oxide Fuel Cells
by Massimiliano Lo Faro, Sabrina Campagna Zignani and Antonino Salvatore Aricò
Materials 2020, 13(14), 3231; https://doi.org/10.3390/ma13143231 - 20 Jul 2020
Cited by 28 | Viewed by 4558
Abstract
Exsolved perovskites can be obtained from lanthanum ferrites, such as La0.6Sr0.4Fe0.8Co0.2O3, as result of Ni doping and thermal treatments. Ni can be simply added to the perovskite by an incipient wetness method. Thermal [...] Read more.
Exsolved perovskites can be obtained from lanthanum ferrites, such as La0.6Sr0.4Fe0.8Co0.2O3, as result of Ni doping and thermal treatments. Ni can be simply added to the perovskite by an incipient wetness method. Thermal treatments that favor the exsolution process include calcination in air (e.g., 500 °C) and subsequent reduction in diluted H2 at 800 °C. These processes allow producing a two-phase material consisting of a Ruddlesden–Popper-type structure and a solid oxide solution e.g., α-Fe100-y-zCoyNizOx oxide. The formed electrocatalyst shows sufficient electronic conductivity under reducing environment at the Solid Oxide Fuel Cell (SOFC) anode. Outstanding catalytic properties are observed for the direct oxidation of dry fuels in SOFCs, including H2, methane, syngas, methanol, glycerol, and propane. This anode electrocatalyst can be combined with a full density electrolyte based on Gadolinia-doped ceria or with La0.8Sr0.2Ga0.8Mg0.2O3 (LSGM) or BaCe0.9Y0.1O3-δ (BYCO) to form a complete perovskite structure-based cell. Moreover, the exsolved perovskite can be used as a coating layer or catalytic pre-layer of a conventional Ni-YSZ anode. Beside the excellent catalytic activity, this material also shows proper durability and tolerance to sulfur poisoning. Research challenges and future directions are discussed. A new approach combining an exsolved perovskite and an NiCu alloy to further enhance the fuel flexibility of the composite catalyst is also considered. In this review, the preparation methods, physicochemical characteristics, and surface properties of exsoluted fine nanoparticles encapsulated on the metal-depleted perovskite, electrochemical properties for the direct oxidation of dry fuels, and related electrooxidation mechanisms are examined and discussed. Full article
(This article belongs to the Special Issue Materials and Components for Solid Oxide Based Electrochemical Cells)
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