Browse > Article
http://dx.doi.org/10.3740/MRSK.2010.20.4.187

Comparison of Corrosion Behavior of CrN Coated SUS316L with Different Layer Structure for Polymer Electrode Membrane Fuel Cell Bipolar Plate  

Paik, Jung-Ho (Div. of Materials Science and Engineering, Hanyang Univ.)
Han, Won-Kyu (Div. of Materials Science and Engineering, Hanyang Univ.)
Kang, Sung-Goon (Div. of Materials Science and Engineering, Hanyang Univ.)
Publication Information
Korean Journal of Materials Research / v.20, no.4, 2010 , pp. 187-193 More about this Journal
Abstract
Chromium nitride (CrN) samples with two different layer structures (multilayer and single layer) were coated on bipolar plates of polymer electrolyte membrane fuel cells (PEMFC) using the reactive sputtering method. The effects with respect to layer structure on corrosion resistance and overall cell performance were investigated. A continuous and thin chromium nitride layer ($Cr_{0.48}\;N_{0.52}$) was formed on the surface of the SUS 316L when the nitrogen flow rate was 10 sccm. The electrochemical stability of the coated layers was examined using the potentiodynamic and potentiostatic methods in the simulated corrosive circumstances of the PEMFC under $80^{\circ}C$. Interfacial contact resistance (ICR) between the CrN coated sample and the gas diffusion layer was measured by using Wang's method. A single cell performance test was also conducted. The test results showed that CrN coated SUS316L with multilayer structure had excellent corrosion resistance compared to single layer structures and single cell performance results with $25\;cm^2$ in effective area also showed the same tendency. The difference of the electrochemical properties between the single and multilayer samples was attributed to the Cr interlayer layer, which improved the corrosion resistance. Because the coating layer was damaged by pinholes, the Cr layer prevented the penetration of corrosive media into the substrate. Therefore, the CrN with a multilayer structure is an effective coating method to increase the corrosion resistance and to decrease the ICR for metallic bipolar plates in PEMFC.
Keywords
polymer electrode membrane fuel cell; bipolar plate; CrN; multi-layer; single-layer;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 D. Linden, Handbook of Batteries and Fuel Cells, McGraw-Hill, NY (1984).
2 P. L. Hentall, J. B. Lakeman, G. Mepsted, P. L. Adcockand J. M. Moore, J. Power Sources, 80, 235 (1999).   DOI   ScienceOn
3 J. Jayaraj, Y. C. Kim, K. B. Kim, H. K. Seok and E.Fleury, Sci. Technol. Adv. Mater., 6, 282 (2005).   DOI   ScienceOn
4 J. R. Selman, Fuel Cells; Trends in Research and Application, Electric Power Research Institute, CA (1986).
5 Y. I. Chen and J. G. Duh, Surf . Coat. Technol., 46, 371(1991).   DOI   ScienceOn
6 D. P. Davies, P. L. Adcock, M. T. Turpin and S. J. Rowen,J. Appl. Electrochem. 30, 101 (2001).   DOI   ScienceOn
7 H. Tawfik, Y. Hung and D. Mahajan, J. Power Sources,163, 755 (2007).   DOI   ScienceOn
8 A. Hermann, T. Chaudhuri and P. Spagnol, Int. J. Hydrog. Energ., 30, 1297 (2005).   DOI   ScienceOn
9 S. -J. Lee, J. -J. Lai and C. -H. Huang, J. Power Sources,145, 362 (2005).   DOI   ScienceOn
10 D. P. Davies, P. L. Adcock, M. Turpin and S. J. Rowen,J. Appl. Electrochem., 30, 101 (2000).   DOI   ScienceOn
11 B. Wu, Y. Fu, J. Xu, G. Lin and M. Hou, J. Power Sources,194, 976 (2009).   DOI   ScienceOn
12 H. Wang, M. P. Brady, G. Teeter and J. A. Turner, J. Power Sources, 138, 86 (2004).   DOI   ScienceOn
13 H. Wang, M. P. Brady, K. L. More, H. M. MeyerIIIand J. A. Turner, J. Power Sources, 138, 79 (2004).   DOI   ScienceOn
14 D. Chu and R. Jiang, J. Power Sources, 80, 226 (1999).   DOI   ScienceOn
15 K. H. Lee, S. H. Lee, J. H. Kim, Y. Y. Lee, Y. H. Kim,M. C. Kim and D. M. Wee, Int. J. Hydrog. Energ., 34,1515 (2009).   DOI   ScienceOn
16 H. Wang, M. A. Sweikart and J. A. Turner, J. Power Sources, 115, 243 (2003).   DOI   ScienceOn
17 R. F. Silva, D. Franchi, A. Masci and A. Pozio, Electrochim. Acta, 51, 3592 (2006).   DOI   ScienceOn
18 The Hydrogen, Fuel Cells & Infrastructure Technologies Program Multi-Year Research, Development and Demonstration Plan (Washington D.C : U.S. Departmement of Energy (2005).
19 C. Liu and A. Leyland, Surf. Coat. Tech., 141, 164 (2001).   DOI   ScienceOn
20 B. Tang, M. P. Brady, H. Wang, J. A. Turner, K. L.More, D. J. Young, P. F. Tortorelli, E. A. Payzant andL. R. Walker, J. Power Sources, 174, 228 (2007).   DOI   ScienceOn
21 E. Endoh, S. Terazono and H. Widjaja, Electrochem. Solid. St., 7, A209 (2004).   DOI   ScienceOn
22 K. Teranishi, K. Kawata and S. Tsushima, Electrochem. Solid. St., 9, A475 (2006).   DOI   ScienceOn
23 D. E. Curtin and R. D. Lousenberg, T. J. Henry, J. Power Sources, 131, 41 (2004).   DOI   ScienceOn
24 H. Tang, Z. Qi and M. Ramani, J. Power Sources, 158,1306 (2006).   DOI   ScienceOn
25 Y. Fu, M. Hou, G. Lin, Z. Shao and B. Yi, J. Power Sources, 176, 282 (2008).   DOI   ScienceOn