Progress in Materials and Metal Substrates for Solid Oxide Fuel Cells

Solid oxide fuel cells (SOFCs) have been considered as alternative energy conversion devices because of their high energy conversion efficiency, fuel flexibility, and cost efficiency without precious metal catalysts. In current SOFCs, the cermet anode consists of nickel and ion-conducting ceramic ma...

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Main Author: Young-Wan Ju
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Energies
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Online Access:https://www.mdpi.com/1996-1073/18/13/3379
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author Young-Wan Ju
author_facet Young-Wan Ju
author_sort Young-Wan Ju
collection DOAJ
description Solid oxide fuel cells (SOFCs) have been considered as alternative energy conversion devices because of their high energy conversion efficiency, fuel flexibility, and cost efficiency without precious metal catalysts. In current SOFCs, the cermet anode consists of nickel and ion-conducting ceramic materials, and solid oxide electrolytes and ceramic cathodes have been used. SOFCs normally operate at high temperatures because of the lower ion conductivity of ceramic components at low temperatures, and they have weaknesses in terms of mechanical strength and durability against thermal shock originating from the properties of ceramic materials. To solve these problems, metal-supported solid oxide fuel cells (MS-SOFCs) have been designed. SOFCs using metal substrates, such as Ni-based and Cr-based alloys, provide significant advantages, such as a low material cost, ruggedness, and tolerance to rapid thermal cycling. In this article, SOFCs are introduced briefly, and the types of metal substrate used in MS-SOFCs, as well as the advantages and disadvantages of each metal support, are reviewed.
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spelling doaj-art-d5eaec15e5434379a5f5bdcb733a92322025-08-20T03:16:46ZengMDPI AGEnergies1996-10732025-06-011813337910.3390/en18133379Progress in Materials and Metal Substrates for Solid Oxide Fuel CellsYoung-Wan Ju0Department of Chemical Engineering, College of Engineering, Wonkwang University, Iksan 54538, Jeonbuk, Republic of KoreaSolid oxide fuel cells (SOFCs) have been considered as alternative energy conversion devices because of their high energy conversion efficiency, fuel flexibility, and cost efficiency without precious metal catalysts. In current SOFCs, the cermet anode consists of nickel and ion-conducting ceramic materials, and solid oxide electrolytes and ceramic cathodes have been used. SOFCs normally operate at high temperatures because of the lower ion conductivity of ceramic components at low temperatures, and they have weaknesses in terms of mechanical strength and durability against thermal shock originating from the properties of ceramic materials. To solve these problems, metal-supported solid oxide fuel cells (MS-SOFCs) have been designed. SOFCs using metal substrates, such as Ni-based and Cr-based alloys, provide significant advantages, such as a low material cost, ruggedness, and tolerance to rapid thermal cycling. In this article, SOFCs are introduced briefly, and the types of metal substrate used in MS-SOFCs, as well as the advantages and disadvantages of each metal support, are reviewed.https://www.mdpi.com/1996-1073/18/13/3379solid oxide fuel cellmetal substratematerials
spellingShingle Young-Wan Ju
Progress in Materials and Metal Substrates for Solid Oxide Fuel Cells
Energies
solid oxide fuel cell
metal substrate
materials
title Progress in Materials and Metal Substrates for Solid Oxide Fuel Cells
title_full Progress in Materials and Metal Substrates for Solid Oxide Fuel Cells
title_fullStr Progress in Materials and Metal Substrates for Solid Oxide Fuel Cells
title_full_unstemmed Progress in Materials and Metal Substrates for Solid Oxide Fuel Cells
title_short Progress in Materials and Metal Substrates for Solid Oxide Fuel Cells
title_sort progress in materials and metal substrates for solid oxide fuel cells
topic solid oxide fuel cell
metal substrate
materials
url https://www.mdpi.com/1996-1073/18/13/3379
work_keys_str_mv AT youngwanju progressinmaterialsandmetalsubstratesforsolidoxidefuelcells