Nitrogen plasma-implanted titanium as bipolar plates in polymer electrolyte membrane fuel cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kai Feng
  • Dixon T.K. Kwok
  • Dongan Liu
  • Zhuguo Li
  • Xun Cai

Detail(s)

Original languageEnglish
Pages (from-to)6798-6804
Journal / PublicationJournal of Power Sources
Volume195
Issue number19
Publication statusPublished - 1 Oct 2010

Abstract

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. © 2010 Elsevier B.V. All rights reserved.

Research Area(s)

  • Bipolar plate, Corrosion resistance, Plasma immersion ion implantation, Polymer electrolyte membrane fuel cells, Titanium

Citation Format(s)

Nitrogen plasma-implanted titanium as bipolar plates in polymer electrolyte membrane fuel cells. / Feng, Kai; Kwok, Dixon T.K.; Liu, Dongan; Li, Zhuguo; Cai, Xun; Chu, Paul K.

In: Journal of Power Sources, Vol. 195, No. 19, 01.10.2010, p. 6798-6804.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review