Advances in Solid Oxide Cells (SOCs)

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Materials".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 594

Special Issue Editors


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Guest Editor
Center of Excellence H2Start, Trakia University, 6000 Stara Zagora, Bulgaria
Interests: advanced protonic ceramics and electrochemical devices for hydrogen technologies

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Guest Editor
International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
Interests: high temperature proton conductors; hydrogen production; fuel cells; energy conversion; solid state electrochemistry; hydrogen separation

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Guest Editor
International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
Interests: computational material design; solid oxides; nanotechnology; nanoelectronics
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Special Issue Information

Dear Colleagues,

Solid Oxide Cells (SOCs), including Solid Oxide Fuel Cells (SOFCs) and Solid Oxide Electrolysis Cells (SOECs), represent one of the most efficient electrochemical technologies for sustainable power generation, energy storage, and green hydrogen production. Beyond their role as high-efficiency energy conversion devices, SOCs, encompassing both oxide-ion and emerging protonic ceramic-based systems, are increasingly recognized as versatile electrochemical platforms that enable deep decarbonization by coupling renewable electricity with hydrogen production, energy storage, and sustainable chemical synthesis pathways. Their high efficiency, fuel flexibility, and capability for reversible operation position SOCs as key components of future low-carbon and integrated energy systems. In recent years, substantial progress has been achieved in materials development, cell and stack design, manufacturing strategies, and system integration.

This Special Issue, “Advances in Solid Oxide Cells (SOCs)”, aims to highlight recent breakthroughs in both conventional oxide-ion conducting SOCs and emerging protonic ceramic-based devices, including Protonic Ceramic Fuel Cells (PCFCs) and Protonic Ceramic Electrolysis Cells (PCECs), which enable reduced operating temperatures, enhanced durability, and integration into various chemical processes. This Special Issue will cover advances in functional materials for electrolytes, electrodes, and interconnects, in addition to degradation phenomena, operando characterization, and innovative fabrication techniques, with particular emphasis on additive manufacturing and advanced printing technologies for SOC components and architectures.

Furthermore, this Special Issue will emphasize multiphysics modeling, digital twins, data-driven analysis, and AI-assisted approaches for materials discovery, microstructure optimization, performance enhancement, lifetime prediction, and system-level control. By bringing together experimental, theoretical, and computational research, this Special Issue seeks to provide a forward-looking perspective on the development of SOC and protonic ceramic technologies toward scalable, reliable, and cost-effective implementation.

Dr. Mariya E. Ivanova
Dr. Kwati Leonard
Dr. Aleksandar Staykov
Guest Editors

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Keywords

  • solid oxide fuel cells (SOFCs)
  • solid oxide electrolysis cells (SOECs)
  • reversible solid oxide cells (rSOCs)
  • protonic ceramic fuel cells (PCFCs)
  • protonic ceramic electrolysis cells (PCECs)
  • additive manufacturing
  • hydrogen production
  • multiphysics modeling
  • artificial intelligence in electrochemistry
  • functional ceramic materials

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Published Papers (1 paper)

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Research

20 pages, 5689 KB  
Article
Environmental Profile of Solid Oxide Fuel Cell Manufacturing: A Comprehensive Life Cycle Assessment
by Hilmi Hisyam Naimin, Ruhanita Maelah, Hawa Hishamuddin, Muhamed Ali Shaikh Abdul Kader Abdul Hameed, Mohd Nizam Ab Rahman and Amizawati Mohd Amir
Inorganics 2026, 14(6), 144; https://doi.org/10.3390/inorganics14060144 - 26 May 2026
Viewed by 309
Abstract
Coal has been Malaysia’s primary energy source for electricity generation for the past few decades, resulting in increased greenhouse gas emissions and irreversible environmental damage. Solid Oxide Fuel Cells (SOFCs) have emerged as a viable clean-energy alternative to mitigate these environmental effects. There [...] Read more.
Coal has been Malaysia’s primary energy source for electricity generation for the past few decades, resulting in increased greenhouse gas emissions and irreversible environmental damage. Solid Oxide Fuel Cells (SOFCs) have emerged as a viable clean-energy alternative to mitigate these environmental effects. There has been significant emphasis on developing pollution-free technology, with limited attention given to the environmental impact of SOFC. Research and development efforts have primarily focused on the design and technical aspects of SOFC. Prior to the introduction of SOFC to market, quantifying the environmental footprint of SOFC manufacturing is necessary to support a sustainable energy transition. This study conducts a comprehensive Life Cycle Assessment (LCA) of SOFC manufacturing in accordance with ISO 14040 and 14044 standards. The analysis focuses on a planar electrolyte-supported SOFC with a lifespan of 4.57 years, using a functional unit of 1 kWh electrical output. The Environmental Footprint (EF) 3.1 method implemented in GaBi Software was used for the impact assessment. Key environmental impact categories considered in the LCA include Climate Change (CC), Acidification Potential (AP), Eutrophication Potential (EP), Ozone Depletion Potential (ODP), Photochemical Ozone Formation (POF), and Human Toxicity Potential (HTP). The total climate change impact is approximately 19.674 kg CO2 eq./kWh, with the Balance of Plant (BoP) phase contributing 91% of this impact, while the fuel cell stack phase contributes 1.25%. The study identifies key areas for improvement, primarily related to BoP and other high-impact processes, and emphasizes the importance of targeted measures to effectively reduce the environmental impacts associated with SOFC manufacturing. Full article
(This article belongs to the Special Issue Advances in Solid Oxide Cells (SOCs))
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