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Effect of pH value on corrosion resistance and surface conductivity of plasma nitrided 304L bipolar plate for PEMFC. International Journal of Energy Research, 35(2011) 772-780
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real2(金币+3): 谢谢,非常及时。 2011-11-02 22:07:57
FN Thomson Reuters Web of Knowledge
VR 1.0
PT  J
AU  Tian, RJ
Sun, JC
AF  Tian, Rujin
Sun, Juncai
TI  Effect of pH value on corrosion resistance and surface conductivity of plasma-nitrided 304L bipolar plate for PEMFC
SO  INTERNATIONAL JOURNAL OF ENERGY RESEARCH
LA  English
DT  Article
DE  plasma nitriding; stainless steel; bipolar plate; corrosion resistance; passive film; interfacial contact resistance (ICR)
ID  316L STAINLESS-STEEL; MEMBRANE FUEL-CELLS; IMMERSION ION-IMPLANTATION; THERMAL NITRIDATION; CONTACT RESISTANCE; LOW-TEMPERATURE; TECHNOLOGY; AUSTENITE; BEHAVIOR
AB  Low temperature plasma nitriding is developed to meet the requirements for corrosion resistance and interfacial contact resistance (ICR) of stainless steel 304L as the bipolar plate for PEMFC. A dense and supersaturated-nitrogen nitrided layer has formed on the surface of the stainless steel 304L. Electrochemical behavior for the untreated and plasma-nitrided 304L was measured in H(2)SO(4) (pH = 1-5)+2ppm F(-) simulating PEMFC environment, and the ICR was evaluated before and after corrosion tests. The experimental results have shown that the ICR for the plasma nitrided 304L is lower than the requirement of U. S. DOE (<10 m Omega cm(2) to 2010). Corrosion resistance and the ICR at the compaction force of 150-200 N cm(-2) increase with increasing pH value for the untreated and plasma-nitrided 304L. The passive current densities for the untreated and plasma-nitrided 304L are all lower than 16 mu A cm(-2). The ICR between passive film and carbon paper are increased markedly because of passive film formed on the surface of both studied 304L. However, the passive current density and the ICR are lower for the plasma nitrided 304L than those for the untreated one at the given pH value, which results from the different composition of the stable passive film formed on the surface. The low temperature plasma nitriding provides a promising method for 304L using as bipolar plate for PEMFC. Further research is needed to evaluate the long-term stability of passive film and the performance of single fuel cell. Copyright (C) 2010 John Wiley & Sons, Ltd.
C1  [Tian, RJ] Dalian Jiaotong Univ, Coll Mat Sci & Engn, Dalian 116028, Peoples R China.
[Sun, JC] Dalian Maritime Univ, Dept Mat Sci & Engn, Dalian 116026, Peoples R China.
RP  Tian, RJ (reprint author), Dalian Jiaotong Univ, Coll Mat Sci & Engn, Dalian 116028, Peoples R China
EM  rjtian_88@yahoo.com.cn
NR  40
TC  0
Z9  0
PU  WILEY-BLACKWELL
PI  MALDEN
PA  COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN  0363-907X
J9  INT J ENERG RES
JI  Int. J. Energy Res.
PD  JUL
PY  2011
VL  35
IS  9
BP  772
EP  780
DI  10.1002/er.1737
PG  9
WC  Energy & Fuels; Nuclear Science & Technology
SC  Energy & Fuels; Nuclear Science & Technology
GA  777KW
UT  WOS:000291615700003
ER
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