Ethanol-fueled metal supported solid oxide fuel cells with a high entropy alloy internal reforming catalyst

Hu, Boxun; Lau, Grace; Lee, Kevin X.; Belko, Seraphim; Singh, Prabhakar; Tucker, Michael C.

doi:10.1016/j.jpowsour.2023.233544

Cited by 2 publications

(1 citation statement)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Initially, a dendritic pore channel anode design was introduced, − expected to improve fuel diffusion and distribution on the catalyst surface, as well as reaction efficiency within the cell, thereby diminishing the likelihood of carbon deposition . Furthermore, co-reforming fuel with steam ,− is employed to augment the cell’s electrochemical reaction process. The cell is designed for operation at a stable output current, aiming to reduce carbon formation.…”

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

View full text Add to dashboard Cite

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.

show abstract