A NiMo-YSZ catalyst support layer for regenerable solid oxide fuel cells running on isooctane

Wang, Jincheng; Zhao, Kai; Zhao, Jishi; Li, Jun; Liu, Yihui; Chen, Dongchu; Xu, Qing; Chen, Min

doi:10.1016/j.apenergy.2022.119907

Cited by 13 publications

(2 citation statements)

References 51 publications

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“…Addressing the challenge of carbon deposition associated with methanol and ethanol in fuel cells, researchers have devised various anticarbon deposition strategies with notable outcomes . These strategies encompass enhancing catalyst design to incorporate more selective and carbon-resistant materials − and refining operational conditions, including modulating the operating temperature − and the fuel-to-air ratio, , to curtail carbon accumulation. Furthermore, several studies have concentrated on fuel pretreatment and the use of additives to improve fuel conversion efficiency , and reduce carbon deposition.…”

Section: Introductionmentioning

confidence: 99%

Carbon Deposition Mitigation Strategies in Proton-Conducting Solid Oxide Fuel Cells: A Case Study with Biomass Fuels

Dang,

Song,

et al. 2024

ACS Appl. Mater. Interfaces

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Methanol and ethanol, when used as biomass fuels, demonstrate distinct benefits compared to hydrogen in protonconducting solid oxide fuel cells (PCFCs) applications. Nevertheless, employing these biomass fuels in PCFCs encounters a significant obstacle due to carbon deposition, adversely affecting the cells' longevity. To mitigate this issue, a dendritic pore channel anode design was implemented to optimize the fuel distribution and utilization efficiency. Additionally, the approach incorporates a co-reforming strategy of fuel and steam, operating the cell under stable output current conditions to mitigate carbon deposition in the cell. Furthermore, the integration of Ru-GDC nanofiber catalysts enhanced the cell's resistance to carbon deposition and improved its stability. Techniques such as argon and oxygen purging, along with thermal regeneration, were investigated for carbon removal. These approaches have proven to be effective in diminishing carbon buildup and restoring cell functionality. Applying these strategies, PCFCs equipped with Ru-GDC fiber catalysts, operating at a stable 700 °C current, demonstrated prolonged stability for 117 h with methanol and 96 h with ethanol, markedly surpassing the performance of untreated cells. These advancements not only alleviate carbon deposition issues in PCFCs utilizing methanol and ethanol but also enhance the potential of biomass fuels in PCFC applications.

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Section: Introductionmentioning

confidence: 99%

Carbon Deposition Mitigation Strategies in Proton-Conducting Solid Oxide Fuel Cells: A Case Study with Biomass Fuels

Dang,

Song,

et al. 2024

ACS Appl. Mater. Interfaces

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“…Therefore, an in-situ regeneration process is necessary to maintain the cell performance and the catalytic activity of the cell. The regeneration process is performed by pulsing air directly into the anode surface of the cell to burn off the coking generated during the cell operation (14). The carbon removal from the catalyst and anode can lead to electrochemical performance recovery and more extended cell operating time under ethanol fuel conditions.…”

Section: Introductionmentioning

confidence: 99%

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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A high-performance intermediate temperature reversible solid oxide cell with a new barrier layer free oxygen electrode

Zhao,

Lu,

et al. 2024

Applied Energy

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A NiMo-YSZ catalyst support layer for regenerable solid oxide fuel cells running on isooctane

Cited by 13 publications

References 51 publications

Carbon Deposition Mitigation Strategies in Proton-Conducting Solid Oxide Fuel Cells: A Case Study with Biomass Fuels

Carbon Deposition Mitigation Strategies in Proton-Conducting Solid Oxide Fuel Cells: A Case Study with Biomass Fuels

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

A high-performance intermediate temperature reversible solid oxide cell with a new barrier layer free oxygen electrode

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