Exploring the application of hydrazine hydrate in protonic ceramic fuel cells: Strategies and performance improvements

Hydrazine hydrate, characterized by its high hydrogen content and eco-friendliness, garners extensive attention in the field of fuels. Its high energy density and rapid decomposition capabilities render it a promising fuel option for Proton-Conductor Solid Oxide Fuel Cells (PCFCs). Given the unique...

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Bibliographic Details
Published in:Journal of power sources 2024-06, Vol.605, p.234532, Article 234532
Main Authors: Dang, Haochen, Wu, Junyan, Song, Laizhen, Shi, Guopu
Format: Article
Language:English
Subjects:
Dendritic channels
Hydrazine hydrate
Nanocatalysts
PCFCs
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Summary:Hydrazine hydrate, characterized by its high hydrogen content and eco-friendliness, garners extensive attention in the field of fuels. Its high energy density and rapid decomposition capabilities render it a promising fuel option for Proton-Conductor Solid Oxide Fuel Cells (PCFCs). Given the unique properties of hydrazine hydrate, this study employs a dendritic porous anode structure to facilitate faster fuel transport. Additionally, the influence of operational temperature and concentration of hydrazine hydrate as fuel on cell performance is analyzed. An effective vapor management strategy is implemented to address its decomposition into water vapor, resulting in a significant 23.17 % increase in the maximum power density (MPD) of the cell. To further enhance the performance of hydrazine hydrate fuel in PCFCs, a Pt–Al spherical catalyst is integrated within the anode structure of the cell. This approach notably improves the cell performance, yielding an additional 14.98 % increase in MPD. This design not only augments the electrical output but also effectively mitigates the degradation of the interface between the anode and the electrolyte. These optimization measures significantly improve the lifespan and reliability of the cell. The outcomes of this study demonstrate the practical feasibility of using hydrazine hydrate as a fuel in PCFCs. •Explored the application of hydrazine hydrate as a novel fuel in PCFCs.•Boosted hydrazine hydrate mass transfer with dendritic anode.•Studied hydrazine hydrate's effect on PCFCs' temperature and vapor management.•Enhanced hydrazine hydrate conversion with Pt–Al in dendritic anodes.
ISSN:0378-7753
DOI:10.1016/j.jpowsour.2024.234532