Corrosion resistance of functionally graded TiN/Ti coatings for proton exchange membrane fuel cells
Abstract
Bipolar Plates (BPP) are important components of proton exchange membrane fuel cell (PEMFC) stacks. In the development of innovative fuel cell designs, it is advantageous to use aluminum for these applications, however, this material lacks the necessary corrosion resistance. Since the performance of PEMFC stacks depends on BPP properties, in particular, corrosion resistance, depositing titanium nitride (TiN) thin films onto aluminum substrates may improve their efficiency and durability. Present work focuses on improving corrosion resistance and hydrophobicity of TiN/Ti by using N graded films deposited onto aluminum substrates (AA-1100) by grid-assisted magnetron sputtering (GAMS). Electrochemical impedance spectroscopy (EIS) with potentiodynamic and potentiostatic polarization are used to investigate the performance of the substrate/film system at room temperature and 70 oC, thus simulating a prototypic PEMFC electrolyte environment. Electrochemical test results showed that graded TiN films improved corrosion resistance when compared with both the homogeneous films and the AA1100 uncoated substrate. Furthermore, contact angle results reveal improved hydrophobicity for both homogeneous and graded TiN coatings when compared with the AA1100 substrate.
- Authors:
-
- Univ. of Sao Paulo (Brazil). Escola Politecnica. Dept. de Engenharia Metalurgica e de Materiais; Centro Estadual de Educacao Tecnologica “Paula Souza”, Sao Paulo (Brazil). Faculdade de Tecnologia de Cotia
- Univ. of Sao Paulo (Brazil). Escola Politecnica. Dept. de Engenharia Metalurgica e de Materiais
- Montanuniversitaet Leoben (Austria)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
- Universidade do Estado de Santa Catarina, Joinville-SC (Brazil). Lab. of Plasmas, Films and Surfaces
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); Foundation of Support for Research and Innovation of the Santa Catarina State (FAPESC); Brazilian National Research, Technology and Innovation Council
- OSTI Identifier:
- 1787009
- Alternate Identifier(s):
- OSTI ID: 1809563
- Grant/Contract Number:
- AC05-00OR22725; AC05-06OR23100; 308565/2018-5; PAP-TR-781
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Hydrogen Energy
- Additional Journal Information:
- Journal Volume: 45; Journal Issue: 58; Journal ID: ISSN 0360-3199
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; 36 MATERIALS SCIENCE; PEMFC; Titanium Nitride; Bipolar Plates; Graded Coatings; Functionally Graded Materials; Corrosion Resistance
Citation Formats
Silva, F. C., Prada Ramirez, O. M., Tunes, M. A., Edmondson, P. D., Sagás, J. C., Fontana, L. C., de Melo, H. G., and Schön, C. G. Corrosion resistance of functionally graded TiN/Ti coatings for proton exchange membrane fuel cells. United States: N. p., 2020.
Web. doi:10.1016/j.ijhydene.2020.09.037.
Silva, F. C., Prada Ramirez, O. M., Tunes, M. A., Edmondson, P. D., Sagás, J. C., Fontana, L. C., de Melo, H. G., & Schön, C. G. Corrosion resistance of functionally graded TiN/Ti coatings for proton exchange membrane fuel cells. United States. https://doi.org/10.1016/j.ijhydene.2020.09.037
Silva, F. C., Prada Ramirez, O. M., Tunes, M. A., Edmondson, P. D., Sagás, J. C., Fontana, L. C., de Melo, H. G., and Schön, C. G. Thu .
"Corrosion resistance of functionally graded TiN/Ti coatings for proton exchange membrane fuel cells". United States. https://doi.org/10.1016/j.ijhydene.2020.09.037. https://www.osti.gov/servlets/purl/1787009.
@article{osti_1787009,
title = {Corrosion resistance of functionally graded TiN/Ti coatings for proton exchange membrane fuel cells},
author = {Silva, F. C. and Prada Ramirez, O. M. and Tunes, M. A. and Edmondson, P. D. and Sagás, J. C. and Fontana, L. C. and de Melo, H. G. and Schön, C. G.},
abstractNote = {Bipolar Plates (BPP) are important components of proton exchange membrane fuel cell (PEMFC) stacks. In the development of innovative fuel cell designs, it is advantageous to use aluminum for these applications, however, this material lacks the necessary corrosion resistance. Since the performance of PEMFC stacks depends on BPP properties, in particular, corrosion resistance, depositing titanium nitride (TiN) thin films onto aluminum substrates may improve their efficiency and durability. Present work focuses on improving corrosion resistance and hydrophobicity of TiN/Ti by using N graded films deposited onto aluminum substrates (AA-1100) by grid-assisted magnetron sputtering (GAMS). Electrochemical impedance spectroscopy (EIS) with potentiodynamic and potentiostatic polarization are used to investigate the performance of the substrate/film system at room temperature and 70 oC, thus simulating a prototypic PEMFC electrolyte environment. Electrochemical test results showed that graded TiN films improved corrosion resistance when compared with both the homogeneous films and the AA1100 uncoated substrate. Furthermore, contact angle results reveal improved hydrophobicity for both homogeneous and graded TiN coatings when compared with the AA1100 substrate.},
doi = {10.1016/j.ijhydene.2020.09.037},
journal = {International Journal of Hydrogen Energy},
number = 58,
volume = 45,
place = {United States},
year = {Thu Oct 01 00:00:00 EDT 2020},
month = {Thu Oct 01 00:00:00 EDT 2020}
}
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- Quaeyhaegens, C.; Stals, L. M.; Van Stappen, M.
- Thin Solid Films, Vol. 197, Issue 1-2
A review of PEM hydrogen fuel cell contamination: Impacts, mechanisms, and mitigation
journal, March 2007
- Cheng, Xuan; Shi, Zheng; Glass, Nancy
- Journal of Power Sources, Vol. 165, Issue 2
An investigation into polypyrrole-coated 316L stainless steel as a bipolar plate material for PEM fuel cells
journal, December 2006
- Wang, Yan; Northwood, Derek O.
- Journal of Power Sources, Vol. 163, Issue 1
Mechanical properties of homogeneous and nitrogen graded TiN thin films
journal, September 2020
- Silva, Felipe C.; Tunes, Matheus A.; Sagás, Julio C.
- Thin Solid Films, Vol. 710
Composite-coated aluminum bipolar plates for PEM fuel cells
journal, June 2013
- Mawdsley, Jennifer R.; Carter, J. David; Wang, Xiaoping
- Journal of Power Sources, Vol. 231
Electronic currents and the formation of nanopores in porous anodic alumina
journal, October 2009
- Zhu, Xu-Fei; Song, Ye; Liu, Lin
- Nanotechnology, Vol. 20, Issue 47
Age-hardening response of AlMgZn alloys with Cu and Ag additions
journal, August 2020
- Stemper, Lukas; Tunes, Matheus A.; Oberhauser, Paul
- Acta Materialia, Vol. 195