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Advances in Protonic Ceramic Electrochemical Cells

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

Deadline for manuscript submissions: closed (20 July 2022) | Viewed by 3549

Special Issue Editors


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Guest Editor
Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, 80-233 Gdansk, Poland
Interests: protonic conductors; solid oxide fuel cells; electrolyzers; thermal analysis
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Centre for Materials Science and Nanotechnology Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Oslo, 0371 Oslo, Norway
Interests: electrodes; materials; electrochemistry; electrolyzers; fuel cells

Special Issue Information

Dear Colleagues,

The Special Issue on the advances in protonic ceramic electrochemical cells (PCECs) is dedicated to publishing high-quality research and cutting-edge advances in state-of-the-art PCEC devices and materials. PCEC technologies include intermediate-temperature proton ceramic fuel cells (PCFCs), electrolyzers (PCEs), and membrane reactors (PCMRs), all of which convert hydrogen, ammonia, or hydrocarbons to or from power, CO2, H2O, or higher-value chemicals. These technologies are emerging and competitive, yet they are reliant on both theoretical and materials advances. Improved proton-conducting—or mixed proton- and electron-conducting—oxide materials, developments in electrochemical models for high-temperature protonic systems, characterization methods, links between functional properties and electrochemical performance, understanding of high-temperature electrocatalysis for protonic electrochemistry, and modeling of functional properties and defect thermodynamics are all examples of thematic areas of PCEC development. Engineering advances, such as electrode structuring, stacking of cell systems, manufacturing, new geometries, sealing, or current collection, are all areas of continuous focus throughout the PCEC research community. We, therefore, believe that the research gathered within this Special Issue will further facilitate the progress in this field.

It is our pleasure to invite you to submit original research papers, short communications, or state-of-the-art reviews that are within the scope of this Special Issue.

Dr. Aleksandra Mielewczyk-Gryń
Dr. Ragnar Strandbakke
Guest Editors

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Keywords

  • proton ceramic cells
  • protonics
  • proton conductors
  • positrodes
  • negatrodes
  • fuel cells
  • electrolyzers

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Published Papers (1 paper)

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Research

17 pages, 6090 KiB  
Article
Microstructural Design of Ba0.5La0.5Co0.5Fe0.5O3 Perovskite Ceramics
by Daria Gierszewska, Iga Szpunar, Francis Oseko, Joanna Pośpiech, Małgorzata Nadolska, Martyna Pieragowska, Karolina Reniecka, Kinga Waniek, Karol Leszczyński, Aleksandra Mielewczyk-Gryń, Maria Gazda and Sebastian Wachowski
Materials 2021, 14(16), 4656; https://doi.org/10.3390/ma14164656 - 18 Aug 2021
Cited by 1 | Viewed by 2514
Abstract
Ba0.5La0.5Co0.5Fe0.5O3−δ was synthesized in the solid-state reaction route. The influence of ball milling parameters (such as milling media size, angular velocity, and time), pelletizing pressure, and annealing parameters on the microstructure was studied. The [...] Read more.
Ba0.5La0.5Co0.5Fe0.5O3−δ was synthesized in the solid-state reaction route. The influence of ball milling parameters (such as milling media size, angular velocity, and time), pelletizing pressure, and annealing parameters on the microstructure was studied. The grain size distribution and density or specific surface area changes were investigated in each approach while the individual parameters were changed. The evaluation of BLCF synthesis parameters enables tailoring the microstructure to various applications. It was observed that with lowering the size of milling balls and increasing the angular velocity the material will be porous and thus more appropriate as electrode material in proton ceramic fuel cell or electrolyzer. An increase of time, balls diameter, and/or angular velocity of milling enables one to densify the material in case of membrane application in, e.g., as a gas sensor. The significant influence on densification has also annealing temperature increase. Applying 1200 °C during annealing leads to dense material, while at 1100 °C shows visible porosity of the product. In this work, we present the results of the BLCF synthesis parameters change allowing the selection of appropriate parameter values depending on the further application as PCCs. Full article
(This article belongs to the Special Issue Advances in Protonic Ceramic Electrochemical Cells)
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