Porous Titanium Structures for Fuel Cells
Author Information
Author(s): Villemur Juan, Romero Carlos, Crego Jose Manuel, Gordo Elena
Primary Institution: Department of Material Science and Engineering, Universidad Carlos III de Madrid
Hypothesis
Can porous Ti6Al4V structures with surface modifications improve performance in PEM fuel cells?
Conclusion
The study found that nitrided porous Ti6Al4V structures exhibit enhanced corrosion resistance and lower interfacial contact resistance, making them suitable for use as bipolar plates in PEM fuel cells.
Supporting Evidence
- Porous Ti6Al4V structures were fabricated using powder metallurgy techniques.
- Thermochemical nitriding improved the corrosion resistance of the titanium structures.
- The interfacial contact resistance of nitrided samples was below the target set by the US Department of Energy.
Takeaway
Researchers made special titanium structures with holes to help fuel cells work better and last longer. They found that adding a special coating made these structures even more effective.
Methodology
The study used powder metallurgy to create porous Ti6Al4V structures and applied thermochemical nitriding for surface modification.
Limitations
The study does not specify the long-term performance of the materials under real operational conditions.
Digital Object Identifier (DOI)
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