Grain Boundary Transport of Solid Oxide Materials
A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".
Deadline for manuscript submissions: closed (15 July 2020) | Viewed by 500
Special Issue Editor
Interests: electrochemistry; energy conversion technology; hydrogen production; electrochemical analysis; solid state chemistry and electrochemistry; solid oxide fuel cells (SOFCs); solid oxide electrolysis cells (SOECs); protonic ceramic fuel cells (PCFCs); protonic ceramic electrolysis cells (PCECs); reversible solid oxide cells (rSOCs); sensors; energy conversion; steam electrolysis; proton transportation; chemical engineering, synthesis and characterization of solid oxide materials with different nature of conductivity (ionic, electronic, mixed) for energy conversion technologies; design and fabrication of solid oxide electrochemical cells (fuel cells, electrolysis cells, sensors, pumps, converters, membrane reactors)
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Special Issue Information
Dear Colleagues,
Polycrystalline solid oxide electrolytes are increasingly attracting research attention from the viewpoint of their utilisation as energy materials for various electrochemical devices, from lithium ionic batteries to solid oxide fuel cells. The success in the application of such electrolytes largely depends on the level of their electrical conductivity, which, in turn, is regulated by the bulk and grain boundary conductivities. Although the conductivity values can be quite precisely determined for simple (unipolar- and single-phase) systems, the investigation of multi-phase compositions and/or multi-conducting materials frequently represents a challenging task. A correct separation of the bulk and grain boundary conductivities provides not only an improved understanding of the nature and structure of grain boundaries, but also enables the optimisation of the transport properties of electrolytes. The attainment of both of these goals is extremely important for the design of efficient and high-performance electrochemical systems. This Special Issue aims to provide a unique platform for exchanging opinions and discussing recent achievements in the analysis of “complicated” solid oxide materials, with a particular focus on their grain boundary transportation features. Original research papers, state-of-the-art reviews, and short communications of the theoretical and experimental character are welcome.
Dr. Dmitry Medvedev
Guest Editor
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Keywords
- Defects
- Composites
- Solid oxides
- Energy materials
- Grain boundary transport
- Mixed ionic-electronic conductors
- Electrochemical impedance spectroscopy
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