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Processes
Special Issues
Solid Oxide Fuel and Electrolysis Cells: Operation, Performance and Technologies
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Solid Oxide Fuel and Electrolysis Cells: Operation, Performance and Technologies

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 2060

Special Issue Editors

Dr. Abul K. Azad

E-Mail Website
Guest Editor
Chemical and Process Engineering, Faculty of Integrated Technologies, Universiti Brunei Darussalam, Gadong BE1410, Brunei
Interests: fuel cells; functional materials; biomass energy conversion; photocatalysts
Dr. Abdalla M. Abdalla

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Suez Canal University, Ismailia 41522, Egypt
Interests: fuel cells; energy materials; modelling and simulations; water desalination
Dr. Mahendra Rao Somalu

E-Mail Website
Guest Editor
Fuel Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
Interests: fuel cells; hydrogen; nanomaterials; ceramics; biomass gasification

Special Issue Information

Dear Colleagues,

I cordially invite you to submit the results of your recent studies in the field of “Solid Oxide Fuel and Electrolysis Cells: Operation, Performance and Technologies” to a Special Issue of Processes.

Solid oxide fuel and electrolyser cells are one of the most promising technologies for reaching a sustainable energy system in the future. Solid oxide cells (SOCs) can be used as solid oxide fuel cells (SOFCs) for highly efficient and clean production of electricity from H2, and in reverse mode, SOCs can be used as solid oxide electrolysis cells (SOECs) converting electricity into H2. SOFC is an important type of fuel cell, and it consists of two porous components (anode and cathode) separated by a highly dense component (electrolyte, such as Yttria-Stabilised Zirconia (YSZ)) or Gadolinium-Doped Ceria (GDC). SOEC technology allows the storage of large amounts of surplus renewable electricity by converting it into hydrogen known as green hydrogen. There is a growing interest in integrating SOECs with nuclear energy and geothermal energy technologies to optimize the hydrogen production efficiency as well. Moreover, this type of high-temperature electrolyser can also be used to produce synthetic fuels by reducing CO2 and steam simultaneously. Despite the great suitability and flexibility of SOFCs and SOECs for real system applications, several challenges still need to be overcome related to degradation, possibilities to identify and reverse it, material suitability and the general lifetime for their commercialization and use in present and future energy systems. It is crucial to understand their behaviour and operating issues to discover the options that can improve their operation and lifetime, especially at the level of industrial-sized cells, stacks and systems.

This Special Issue on “Solid Oxide Fuel and Electrolysis Cells: Operation, Performance and Technologies” seeks high-quality novel works focusing on the latest advances in SOFCs and SOECs technologies.

The key topics covered by this Special Issue include, but are not limited to, the following:

  • Synthesis and characteristics of the SOFC/SOEC anode, electrolyte, interconnects, and cathode materials;
  • Low/intermediate-temperature SOFC/SOEC techniques;
  • Microstructural improvement of the SOFC/SOEC supporting layers;
  • Novel fabrication methods and stack design techniques;
  • New SOFC/SOEC structures (e.g., tubular, flat tubular, planar, segmented-in-series, metal-supported);
  • Simulation and modelling of SOFCs/SOECs;
  • Numerical studies and diagnostic methods;
  • Other methods to use or produce hydrogen.

Dr. Abul K. Azad
Dr. Abdalla M. Abdalla
Dr. Mahendra Rao Somalu
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 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. Processes is an international peer-reviewed open access monthly 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 2400 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 oxide fuel cells
  • solid oxide electrolyser cells
  • power density
  • simulation
  • modelling
  • cell characterization
  • materials and components for fuel cells
  • system integration
  • water splitting
  • stack design
  • SOFC/SOEC diagnostic methods
  • hydrogen

Published Papers (1 paper)

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Research

16 pages, 7132 KiB  
Article
Effect of Calcination Temperature on the Structural and Electrochemical Behaviour of Li-Based Cathode for Intermediate-Temperature SOFC Application
by Sumarni Mansur, Nurul Akidah Baharuddin, Wan Nor Anasuhah Wan Yusoff, Azreen Junaida Abd Aziz and Mahendra Rao Somalu
Processes 2023, 11(7), 2139; https://doi.org/10.3390/pr11072139 - 18 Jul 2023
Viewed by 1371
Abstract
A new strategy to reduce the operating temperature of the solid oxide fuel cell (SOFC) is needed to foster the progress of developing high-performance and stable SOFC as a solution to the thermal stress and degradation of the cell components induced by high-temperature [...] Read more.
A new strategy to reduce the operating temperature of the solid oxide fuel cell (SOFC) is needed to foster the progress of developing high-performance and stable SOFC as a solution to the thermal stress and degradation of the cell components induced by high-temperature SOFC. The use of lithium (Li) as a cathode can increase the cell’s efficiency, as it allows for faster ion transport and a higher reaction rate. This study presents an attractive approach to using a Li-based cathode by combining Li with cobalt (Co) to form LiCo0.6Sr0.4O2 (LCSO). In this work, a precursor consisting of Li, Co, and strontium (Sr) was prepared via the glycine-nitrate combustion method. The precursor was calcined at two different calcination temperatures (800 and 900 °C) prior to ink formulation and symmetrical cell fabrication in order to study the effect of calcination temperature on the structural and electrochemical behaviour of a Li-based cathode. The precursor LCSO powder was characterised using X-ray crystallography (XRD) to determine the crystal structure and composition of the developed LCSO. The electrochemical performance of the fabricated symmetrical cell was tested using electrochemical impedance spectroscopy (EIS) to obtain the cell’s resistance information, which is related to the cell’s ionic and electronic conductivity. SDC electrolyte with LCSO calcined at 800 °C has a higher crystallinity percentage and a more porous structure compared to LCSO calcined at 900 °C. The porous structure enhanced the electrochemical performance of the cell, where the symmetrical cell has the highest conductivity (0.038 Scm−1) with the lowest activation energy (0.43 eV). The symmetrical cell was also able to achieve 2.89 Ω cm2 of area-specific resistance (ASR) at 800 °C of operating temperature. In conclusion, the SDC electrolyte with LCSO calcined at 800 °C is the promising cathode material for SOFC applications. The result of this study can benefit the SOFC field of research, especially in the development of intermediate temperature-SOFC. Full article
(This article belongs to the Special Issue Solid Oxide Fuel and Electrolysis Cells: Operation, Performance and Technologies)
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