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Investigation of the Performance of Hastelloy X as Potential Bipolar Plate Materials in Proton Exchange Membrane Fuel Cells.
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- المؤلفون: Zhong, Jiacheng1 (AUTHOR) ; Liu, Zimeng1 (AUTHOR) ; Zhang, Meng1 (AUTHOR) ; Liu, Feng2 (AUTHOR) ; Li, Wenjin2 (AUTHOR) ; Hou, Beirui1 (AUTHOR) ; Zhang, Wenmin1 (AUTHOR) ; Zhao, Chunwang1,3 (AUTHOR) ; Gong, Mingxing4 (AUTHOR)
- المصدر:
Molecules. Mar2024, Vol. 29 Issue 6, p1299. 10p.
- الموضوع:
- معلومة اضافية
- نبذة مختصرة :
The phase, mechanical properties, corrosion resistance, hydrophobicity, and interfacial contact resistance of Hastelloy X were investigated to evaluate its performance in proton exchange membrane fuel cells (PEMFCs). For comparison, the corresponding performance of 304 stainless steel (304SS) was also tested. Hastelloy X exhibited a single-phase face-centered cubic structure with a yield strength of 445.5 MPa and a hardness of 262.7 HV. Both Hastelloy X and 304SS exhibited poor hydrophobicity because the water contact angles were all below 80°. In a simulated PEMFC working environment (0.5 M H2SO4 + 2 ppm HF, 80 °C, H2), Hastelloy X exhibited better corrosion resistance than 304SS. At 140 N·cm−2, the interfacial contact resistance of Hastelloy X can reach as low as 7.4 mΩ·cm2. Considering its overall performance, Hastelloy X has better potential application than 304SS as bipolar plate material in PEMFCs. [ABSTRACT FROM AUTHOR]
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