Application of Ejector in Solid Oxide Fuel Cell Anode Circulation System

Li, Dongdong; Zhao, Hui; Kong, Fanchen; Zhang, Guanmin

doi:10.1007/s11630-022-1587-8

Cited by 7 publications

(1 citation statement)

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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.…”

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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