2023
DOI: 10.1557/s43579-023-00371-0
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Solid-oxide fuel cells: A critical review of materials for cell components

Abstract: Solid-oxide fuel cells are efficient devices for the conversion of chemical to electrical energy and a typical solid-oxide fuel cell consists of a solid electrolyte, cathode, and anode. In the last few decades, researchers have been working extensively on materials development for different components of these devices. In this review article, we briefly discuss the requirements for different components and review prominent materials families explored by the scientific community. As the search for greener energ… Show more

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Cited by 28 publications
(14 citation statements)
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“…Another electrolyte that has recently gained attention is magnesium-doped lanthanum gallate, La x Sr 1– x Ga y Mg 1– y O 3−δ (LSGM) due to its excellent ionic conductivity (0.12 to 0.14 S/cm at 700 °C). Thus, it is suitable for SOCs operating in the intermediate temperature range of 500 to 700 °C …”
Section: Materials Used In Solid Oxide Cellsmentioning
confidence: 99%
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“…Another electrolyte that has recently gained attention is magnesium-doped lanthanum gallate, La x Sr 1– x Ga y Mg 1– y O 3−δ (LSGM) due to its excellent ionic conductivity (0.12 to 0.14 S/cm at 700 °C). Thus, it is suitable for SOCs operating in the intermediate temperature range of 500 to 700 °C …”
Section: Materials Used In Solid Oxide Cellsmentioning
confidence: 99%
“…Thus, it is suitable for SOCs operating in the intermediate temperature range of 500 to 700 °C. 24 The conventional fuel electrode for solid oxide cells is a ceramic-metal composite (cermet), where the metal provides electron conduction pathways and the ceramic provides oxide ion conduction pathways. The ceramic is either the same material as the electrolyte (most commonly 8YSZ) or some other material having a thermal expansion coefficient (TEC) compatible with the electrolyte in order to avoid electrode/ electrolyte interfacial delamination.…”
Section: ■ Introductionmentioning
confidence: 99%
“…The design of an effective electrolyte for fuel cells encompasses several crucial considerations. First, it must exhibit high ionic conductivity while effectively insulating electronic flow [17]. A gas-tight structure, free from porosity, is essential to maintain the separation of gases within the cell, preventing leakage and preserving the desired electrochemical reactions.…”
Section: Electrolytementioning
confidence: 99%
“…Yttria-stabilized zirconia (YSZ), scandia-stabilized zirconia (SSZ), gadolinium-stabilized zirconia (GSZ), cerium oxide (CeO 2 ), zirconium dioxide (ZrO 2 ), and bismuth oxide (Bi 2 O 3 ) are among the various materials used as electrolytes. YSZ stands out as the most widely adopted [1,17,20], manufactured by all major fuel cell developers. These electrolytes demonstrate outstanding mechanical properties and high ionic conductivity, especially at elevated operating temperatures, typically around 800-1000 • C, all the while ensuring the cell's enduring stability and performance [21].…”
Section: Electrolytementioning
confidence: 99%
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