Metal-supported solid oxide fuel cell system with infiltrated reforming catalyst layer for direct ethanol feed operation

Dewa, Martinus; Elharati, Mohamed A.; Hussain, A. Mohammed; Miura, Yohei; Song, Dong; Fukuyama, Yasuhiro; Furuya, Yoshihisa; Dale, Nilesh; Zhang, Xianghui; Marin‐Flores, Oscar; Wu, Di; Norton, M. Grant; Ha, Su

doi:10.1016/j.jpowsour.2022.231625

Cited by 14 publications

(13 citation statements)

References 37 publications

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“…The electrochemical experiments were performed at 600 °C, 650 °C, and 700 °C under humidified H2, ethanol/water (40%, 55%, and 95% ethanol in water). In reference to Figures 5 and 6, the experimental conditions are provided in detail by Prof. Ha's research group (8). In reference to Figures 7 and 8, the test conditions are explained in detail by Prof. Duan's research group (9).…”

Section: Methodsmentioning

confidence: 99%

Performance and Durability of Metal SOFCs in Alternate Fuels

Jabbar¹,

Thompson²,

Parrondo³

et al. 2023

ECS Trans.

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Power generation from electrochemical devices based on solid oxide fuel cells (SOFCs) is in great demand for both stationary and automotive applications to achieve carbon neutrality goals by 2050. In particular, SOFCs are known for their fuel-flexible operations; for example, SOFCs can operate on simple and complex renewable fuels (such as ethanol, natural gas, jet fuel, propane, etc.). Unlike H2-based fuel cells, liquid and hydrocarbon fuels in SOFCs adopt the existing fuel infrastructure and contribute to reducing greenhouse gas emissions significantly. This article presents the potential of using metal-based SOFCs (metal cells) as highly performing and durable power generators. The metal cells technology could be the most accessible solution for using SOFCs for versatile industrial needs.

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Section: Methodsmentioning

confidence: 99%

Performance and Durability of Metal SOFCs in Alternate Fuels

Jabbar¹,

Thompson²,

Parrondo³

et al. 2023

ECS Trans.

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“…The detailed fabrication procedure of MS-SOFC is described in our previous work (8). The MS-SOFC consists of stainless-steel metal support layered with porous yttria-stabilized zirconia (YSZ) anode scaffold and scandia-yttria stabilized zirconia (Sc/YSZ) electrolyte.…”

Section: Ms-sofc Fabricationmentioning

confidence: 99%

“…H 2 flow rate = H 2 concentration * total dry gas flow rate [2] CO flow rate = CO concentration * total dry gas flow rate [3] Syngas flow rate = H 2 flow rate + CO flow rate [4] The detailed schematic of the experimental setup is described in our previous work (8).…”

Section: Cell Evaluationmentioning

confidence: 99%

“…By replacing the cermet support with a more mechanically stable metal support, MS-SOFC can withstand rapid thermal cycles without cracking, making it more suitable for mobile applications. The metal support in MS-SOFC is made of highly porous metal (such as stainless steel) that acts as a mechanical support and electron conductor (8). In this work, the porous void within the metal support in a button MS-SOFC is loaded with a reforming catalyst via the precursor infiltration method.…”

Section: Introductionmentioning

confidence: 99%

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Direct-Fed Ethanol Metal-Supported Solid Oxide Fuel Cell System with Regeneration Process by Air Pulsing

Dewa¹,

Jabbar²,

Miura³

et al. 2023

ECS Trans.

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A Metal-Supported-SOFC (MS-SOFC) has been modified by infiltrating a non-noble metal ceria-zirconia supported cobalt (Co/CZ) internal reforming catalyst to improve its reforming activity and inhibit the carbon deposition or coking under ethanol steam reforming conditions. Non-noble metal catalysts can still be deactivated during long-term cell operation in a severe coking-inducing environment. Therefore, an in-situ regeneration procedure was performed by pulsing air into the anode surface to burn the deposited carbon on the anode and catalyst layer during the cell operation. Upon the cell regeneration steps, the cell voltage was recovered to its initial condition at ~0.8 V, while the peak power density of the cell showed up to 116% recovery under H2 and 111% recovery under ethanol. These data show that the air pulsing regeneration steps in the MS-SOFC can improve the lifetime by removing the coking deposit within the anode and further enhancing its electrochemical and catalytic activity.

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“…One of the biggest advantages of SOFCs is their outstanding fuel flexibility, including H 2 , CH 3 OH, ethanol, natural gas and hydrocarbons. [6][7][8][9][10][11][12] It is particularly suitable to use SOFCs for distributed power-supply and stationary applications with high scalability. [6,13] Under fuel production mode, SOEC, a reversible operation of SOFC, efficiently converts electrical energy (particularly obtained from intermittent renewable energy sources such as solar PV panels and wind turbines) in the form of chemical energy (e.g., H 2 , CO, etc.).…”

Section: Introductionmentioning

confidence: 99%

A critical review of key materials and issues in solid oxide cells

Zou

Chen

et al. 2023

Interdisciplinary Materials

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Solid oxide cells (SOCs) are all solid ceramic devices with the dual functionality of solid oxide fuel cells (SOFCs) to convert the chemical energy of fuels like H2, natural gas and other hydrocarbons to electricity and of solid oxide electrolysis cells (SOECs) to store renewable electric energy of sun and wind in hydrogen fuel. Among the electrochemical energy conversion and storage devices, SOCs are the most clean and efficient technology with unique dual functionality. Due to the high operation temperature (typically 600–800°C), SOCs exhibit many advantages over other energy conversion devices, such as low material cost, high efficiency and fuel flexibility. There has been rapid development of SOC technologies over the last decade with significant advantages and progress in key materials and a fundamental understanding of key issues such as an electrode, electrolyte, performance degradation, poisoning, and stack design. The reversible polarization also has a critical effect on the surface segregation and stability of the electrode and electrode/electrolyte interface. This critical review starts with a brief introduction, working principles and thermodynamics of SOC technology to readers with interests in this rapidly developing and emerging field. Then the key materials currently used in SOCs are summarized, followed by the discussion of the most advanced electrode modification methods and critical issues of SOCs, including the surface chemistry, segregation, electrode/electrolyte interface and varying material degradation mechanisms under reversible operations. The challenges and prospects of SOC technology for future developments are discussed.

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Metal-supported solid oxide fuel cell system with infiltrated reforming catalyst layer for direct ethanol feed operation

Cited by 14 publications

References 37 publications

Performance and Durability of Metal SOFCs in Alternate Fuels

Performance and Durability of Metal SOFCs in Alternate Fuels

Direct-Fed Ethanol Metal-Supported Solid Oxide Fuel Cell System with Regeneration Process by Air Pulsing

A critical review of key materials and issues in solid oxide cells

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