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Special Issue "High-Temperature Electrochemistry of Solid Oxide Materials and Systems"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Advanced Energy Materials".

Deadline for manuscript submissions: 30 November 2019

Special Issue Editors

Guest Editor
Prof. Dr. Maxim Ananyev

Laboratory of Solid Oxide Fuel Cells, Institute of High Temperature Electrochemistry, Yekaterinburg, Russia
Website | E-Mail
Interests: physical chemistry and electrochemistry of solid oxides; electrochemical devices for conversion and storage of energy; solid oxide fuel cells; protonic ceramic fuel cells; electrode kinetics; catalysis; isotopic exchange; diffusion in solid oxides; surface exchange kinetics; defect formation in oxide materials
Guest Editor
Dr. Dmitry Medvedev

Laboratory of electrochemical devices based on solid oxide proton electrolytes, Institute of High Temperature Electrochemistry, Yekaterinburg, Russia
Website | E-Mail
Interests: solid state electrochemistry; energy conversion; proton-conducting electrolytes; perovskite; reversible solid oxide cells

Special Issue Information

Dear Colleagues,

The field of high-temperature electrochemistry covers many current demands related with effective energy conversion, environmental safety, sustainable developments, and economic reasons. As a part of this field, solid oxide materials with different functionalities as well as various electrochemical devices based on them possess high applicability prospects in terms of energy generation in power systems, which satisfy the mentioned demands. This Issue is related to the recent achievements in materials science and to the development of solid oxide electrochemical devices. The Issues include the crystal structure, electronic structure, microstructure and related transport properties of oxygen ionic and protonic electrolytes, mixed electronic and ionic conductors, and triple conducting materials. The design, fabrication techniques, scale-up production, and long-term tests of the solid oxide electrochemical devices are of great interest for researchers working in this field. Special attention is paid to the different scale modeling of solid oxide fuel cells, including protonic ceramic fuel cells. On behalf of the editorial team, we have pleasure to invite all of you to contribute to the Special Issue, High-Temperature Electrochemistry of Solid Oxide Materials and Systems, with your state-of-the-art findings.

Prof. Dr. Maxim Ananyev
Dr. Dmitry Medvedev
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. Energies 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 1800 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 (1 paper)

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Research

Open AccessArticle PrBaCo2O6−δ-Ce0.8Sm0.2O1.9 Composite Cathodes for Intermediate-Temperature Solid Oxide Fuel Cells: Stability and Cation Interdiffusion
Energies 2019, 12(3), 417; https://doi.org/10.3390/en12030417
Received: 29 December 2018 / Revised: 22 January 2019 / Accepted: 23 January 2019 / Published: 29 January 2019
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Abstract
The single-phase oxide PrBaCo2O6−δ and composites (100 − y)PrBaCo2O6−δ-yCe0.8Sm0.2O1.9 (y = 10–30 wt.%) were investigated as cathode materials for intermediate-temperature solid oxide fuel cells. The chemical compatibility, [...] Read more.
The single-phase oxide PrBaCo2O6−δ and composites (100 − y)PrBaCo2O6−δ-yCe0.8Sm0.2O1.9 (y = 10–30 wt.%) were investigated as cathode materials for intermediate-temperature solid oxide fuel cells. The chemical compatibility, cation interdiffusion, thermal expansion and dc conductivity were studied. As a result, strong interdiffusion of Pr and Sm was found between PrBaCo2O6−δ and Ce0.8Sm0.2O1.9. This leads to only insignificantly decreasing thermal expansion coefficient of composite with increasing fraction of Ce0.8Sm0.2O1.9 and, thus, mixing PrBaCo2O6−δ with Ce0.8Sm0.2O1.9 does not improve thermal expansion behavior of the cathode material. Moreover, formation of poorly-conducting BaCeO3, caused by chemical interaction between the double perovskite and doped ceria, was shown to lead to pronounced drop in the electrical conductivity of the composite cathode material with increasing Ce0.8Sm0.2O1.9 content. Full article
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