Corrosion characteristics of SS316L as bipolar plate material in PEMFC cathode environments with different acidities

Yang, Ying; Guo, Lin; Liu, Hongtan

doi:10.1016/j.ijhydene.2010.10.067

Cited by 85 publications

(38 citation statements)

References 23 publications

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“…The results show that high PEM fuel cell cathode potential can accelerate the corrosion of SS316L, thus it should be avoided as much as possible in practice. The result shows that the flat band potential of passive film in PEM fuel cell environments is affected by the chemical environments [17,19] and tempera-ture [63], but relatively independent of the film formation potential. All the films formed at different potentials show identical patterns, the p±n bilayer semiconductor behavior, but the p-type semiconductor behaviors are weak.…”

Section: Electrochemical Measurementsmentioning

confidence: 95%

Effects of Potential on Corrosion Behavior of Uncoated SS316L Bipolar Plate in Simulated PEM Fuel Cell Cathode Environment

et al. 2014

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The effect of potential on the corrosion behavior of uncoated stainless steel SS316L as bipolar plate material in proton exchange membrane (PEM) fuel cell cathode environment is studied. Electrochemical methods, X‐ray photoelectron spectroscopy, scanning electron microscope are employed to characterize the corrosion behavior of SS316L at different polarization potentials in PEM fuel cell cathode environment. The results show that the corrosion current density of SS316L increases with the increase of polarization potential significantly. When the potential is higher than 0.7 V versus SCE, severe corrosion occurs on SS316L. The work also shed light on the corrosion mechanisms of SS316L at different potential in the PEM fuel cell cathode environment.

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Section: Electrochemical Measurementsmentioning

confidence: 95%

Effects of Potential on Corrosion Behavior of Uncoated SS316L Bipolar Plate in Simulated PEM Fuel Cell Cathode Environment

et al. 2014

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“…The sample with 20% engineering strain has the lowest donor concentration in the passive film in 0.5 M H 2 SO 4 solution with 2 ppm fluoride ions, while the donor concentration in the passive film increases with the increasing of engineering strain in 0.5 M H 2 SO 4 solution with 100 ppm fluoride ions. Yang et al [21] found that duplex character of the passive films with n-type semiconductor and p-type semiconductor behaviours gradually transformed into single character of the passive films with n-type semiconductor behaviour with the increasing of H 2 SO 4 concentration for 316L stainless steel in PEMFC cathode environment. Moreover, it also was found that the thickness of passive film decreased with increasing of H 2 SO 4 concentration by Auger Electron Spectroscopy analysis.…”

Section: Electrochemical Testsmentioning

confidence: 99%

Effect of strain on corrosion resistance of 316L stainless steel as bipolar plates in PEMFC environment

Jinlong

Guo

2015

International Journal of Hydrogen Energy

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“…34 The corrosion potential and the corrosion current density are widely used as indicators of material corrosion resistance. A high corrosion potential and a low corrosion current density indicate that a material has an improved anti-corrosion characteristic.…”

Section: Corrosion Behaviors Of Crn Layermentioning

confidence: 99%

Corrosion Prevention of Chromium Nitride Coating with an Application to Bipolar Plate Materials

et al. 2014

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The corrosion properties of chromium nitride (CrN) coating on nickel have been evaluated in order to improve the anti-corrosion of metallic bipolar plate materials with applications such as redox flow batteries. The CrN layers are prepared by nitridation of electroplated Cr layers with different thickness. The nitrogen content of CrN coating layers varies from 0.5 to 4.2 wt% depending on nitriding time and coating layer thickness. Electrochemical and chemical corrosion behaviors are investigated by potentiodynamic polarization test in 5% sulfuric acid and by immersion test in 50% sulfuric acid, respectively. Electrochemical analysis of corrosion potential and corrosion current density as well as passivation behavior and chemical corrosion rate prove conclusively that an intact thin CrN layer is more corrosion resistant than thicker layers where cracks are developed. Sheet resistance of CrN coating layers before and after the corrosion test exhibits no significant difference. The improved corrosion resistance and the excellent stability of CrN coating layers suggest an efficient anti-corrosion method for metallic bipolar plate materials.

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Corrosion characteristics of SS316L as bipolar plate material in PEMFC cathode environments with different acidities

Cited by 85 publications

References 23 publications

Effects of Potential on Corrosion Behavior of Uncoated SS316L Bipolar Plate in Simulated PEM Fuel Cell Cathode Environment

Effects of Potential on Corrosion Behavior of Uncoated SS316L Bipolar Plate in Simulated PEM Fuel Cell Cathode Environment

Effect of strain on corrosion resistance of 316L stainless steel as bipolar plates in PEMFC environment

Corrosion Prevention of Chromium Nitride Coating with an Application to Bipolar Plate Materials

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