scholarly journals Exploring PANI-TiN Nanoparticle Coatings in a PEFC Environment: Enhancing Corrosion Resistance and Conductivity of Stainless Steel Bipolar Plates

Energies ◽  
2017 ◽  
Vol 10 (8) ◽  
pp. 1152 ◽  
Author(s):  
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Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Bipolar Plates ◽  
Nanoparticle Coatings ◽  
Stainless Steel Bipolar Plates

scholarly journals Study on the Properties of Vertical Carbon Nanotube Films Grown on Stainless Steel Bipolar Plates

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 899 ◽  
Author(s):  
Congda Lu ◽  
Fengye Shi ◽  
Jing Jin ◽  
Xiang Peng
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Fuel Cells ◽  
Low Temperature ◽  
Chemical Vapor ◽  
Northern China ◽  
Proton Exchange ◽  
304 Stainless Steel ◽  
Bipolar Plates ◽  
Stainless Steel Bipolar Plates

Research on the conductivity and corrosion resistance of stainless steel bipolar plates in a proton exchange membrane fuel cell (PEMFC) is commonly performed in a normal-temperature environment (about 20 °C). However, these fuel cells must function in low-temperature environments (lower than 0 °C) in some conditions, such as in vehicle fuel cells and in portable power supplies that operate during the winter in northern China. Stainless steel bipolar plates have higher requirements in terms of their hydrophobic and anti-icing properties, in addition to needing high conductivity and corrosion resistance. In this study, carbon nanotubes (CNTs) are grown on the surface of 304 stainless steel (304 SS) without a catalyst coating by plasma-enhanced chemical vapor deposition (PECVD), which is a simple and cheap method that allows stainless steel to be used as bipolar plates in low-temperature environments. The Raman spectroscopy and scanning electron microscopy (SEM) results show that the CNTs grown on the surface of 304 SS have different morphologies. The stainless steel samples with different CNT morphologies are tested by hydrophobicity and in situ icing experiments to prove that vertical CNTs can achieve a superhydrophobic state and have good anti-icing properties. The interfacial contact resistance (ICR) of the bare 304 SS and the 304 SS with vertical CNTs is compared by voltammetry, and then the corrosion resistances of both types is compared in a simulated PEMFC environment via a three-electrode system. Consequently, the ICR of the 304 SS with vertical CNTs was lower than the bare 304 SS. The corrosion potential was positive, and the corrosion current density was greatly reduced for the stainless steel with vertical CNTs grown directly on its surface when compared with the bare 304 SS. The experimental results show that vertical CNTs have good application prospects as bipolar plates for PEMFCs in low-temperature environments.

Performance of a PEM Fuel Cell Using Electroplated Ni–Mo and Ni–Mo–P Stainless Steel Bipolar Plates

2017 ◽  
Vol 164 (13) ◽  
pp. F1427-F1436 ◽  
Author(s):  
Hamed Rashtchi ◽  
Yasna Acevedo Gomez ◽  
Keyvan Raeissi ◽  
Morteza Shamanian ◽  
Björn Eriksson ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Bipolar Plates ◽  
Stainless Steel Bipolar Plates
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