Journal
JOURNAL OF POWER SOURCES
Volume 195, Issue 19, Pages 6798-6804Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2010.04.053
Keywords
Bipolar plate; Polymer electrolyte membrane fuel cells; Plasma immersion ion implantation; Corrosion resistance; Titanium
Funding
- National Natural Science Foundation of China [50820125506]
- Hong Kong Research Grants Council (RGC) General Research Funds (GRF) [CityU 112608]
Ask authors/readers for more resources
Nitrogen plasma immersion ion implantation (PIII), a non-line-of-sight surface treatment technique suitable for bipolar plates in polymer electrolyte membrane fuel cells, is conducted at low and high temperature to improve the corrosion resistance and conductivity of titanium sheets. X-ray photoelectron spectroscopy (XPS) shows that high-temperature (HT) nitrogen PIII produces a thick oxy-nitride layer on the titanium surface. This layer which provides good corrosion resistance and high electrical conductivity as verified by electrochemical tests, inductively coupled plasma optical emission spectroscopy, and interfacial contact resistance (ICR) measurements renders the materials suitable for polymer electrolyte membrane fuel cells. In comparison, the low-temperature (LT) PIII titanium sample exhibits poorer corrosion resistance and electrical conductivity than the untreated titanium control. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available