Detecting proton exchange membrane fuel cell hydrogen leak using electrochemical impedance spectroscopy method

Mousa, Ghassan; Golnaraghi, Farid; DeVaal, Jake; Young, A. P.

doi:10.1016/j.jpowsour.2013.07.018

Cited by 50 publications

(17 citation statements)

References 18 publications

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“…The proton exchange membrane fuel cells (PEMFCs) were systems which could transform chemical energy into electrical energy [1]. It consisted of membrane electrode assembly and bipolar plates.…”

Section: Introductionmentioning

confidence: 99%

Effect of grain refinement and electrochemical nitridation on corrosion resistance of the 316L stainless steel for bipolar plates in PEMFCs environment

Jinlong

Liang

Luo

2015

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

Effect of grain refinement and electrochemical nitridation on corrosion resistance of the 316L stainless steel for bipolar plates in PEMFCs environment

Jinlong

Liang

Luo

2015

Journal of Power Sources

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“…EIS data is presented as a Nyquist plot with equivalent circuit models (ECM) to ease interpretation and estimate electrochemical parameters such as resistances, time constants and capacitance [90][91][92][93][94]. The electrochemical parameters are reflective of state of health of fuel cell and its components such as drying/flooding of ionomer membrane and catalyst layer.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

PEMFC for aeronautic applications: A review on the durability aspects

et al. 2017

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Proton exchange membrane fuel cells (PEMFC) not only offer more efficient electrical energy conversion, relative to on-ground/backup turbines but generate by-products useful in aircraft such as heat for ice prevention, deoxygenated air for fire retardation and drinkable water for use on-board. Consequently, several projects (e.g. DLR-H2 Antares and RAPID2000) have successfully tested PEMFC-powered auxiliary unit (APU) for manned/unmanned aircraft. Despite the progress from flying PEMFC-powered small aircraft with 20 kW power output as high as 1 000 m at 100 km/h to 33 kW at 2 558 m, 176 km/h [1-3], durability and reliability remain key challenges. This review reports on the inadequate understanding of behaviour of PEMFC under aeronautic conditions and the lack of predictive methods conducive for aircraft that provide real-time information on the State of Health of PEMFCs. Highlights: The main research findings are -To minimize performance loss due to high altitude and inclination by adjusting cathode stoichiometric ratio. -To improve quality of oxygen-depleted air by controlling operating temperature and stoichiometric ratio. -Need to devise real time prediction methods conducive for determining PEMFC SoH in aircraft.

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“…Fuel cells are electrochemical devices that convert the chemical energy of a reaction directly into electrical energy [1]. PEMFC is one of the most promising candidates for vehicular power sources and for domestic combined heat and power (CHP) systems.…”

Section: Introductionmentioning

confidence: 99%

Properties of a Plasma-Nitrided Coating and a CrNx Coating on the Stainless Steel Bipolar Plate of PEMFC

Kang

et al. 2020

Coatings

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PEMFC are considered to be the most promising for automotive energy because of their good working effect, low temperature, high efficiency, and zero pollution. Stainless steel as a PEMFC bipolar plate has unparalleled advantages in strength, cost, and processability, but it is easy to corrode in a PEMFC working environment. In order to improve the corrosion resistance, the surface modification of 316L stainless steel is a feasible solution for PEMFC bipolar plates. In the present study, the plasma-nitrided coating and CrNx coating were prepared by the plasma-enhanced balanced magnetron sputtering technology on the 316L stainless steel surface. The microstructures, phase compositions, and corrosion resistance behavior of the coatings were investigated. The corrosion behavior of the prepared plasma-nitrided coating and CrNx coating was investigated by potentiodynamic polarization, potentiostatic polarization, and electrochemical impedance spectroscopy (EIS) in both cathodic and anodic environments. The experimental results show that corrosion resistance of the CrNx coating was better than the plasma-nitrided coating. It was indicated that the technology process of nitriding first and then depositing Cr was better than nitriding only.

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Detecting proton exchange membrane fuel cell hydrogen leak using electrochemical impedance spectroscopy method

Cited by 50 publications

References 18 publications

Effect of grain refinement and electrochemical nitridation on corrosion resistance of the 316L stainless steel for bipolar plates in PEMFCs environment

Effect of grain refinement and electrochemical nitridation on corrosion resistance of the 316L stainless steel for bipolar plates in PEMFCs environment

PEMFC for aeronautic applications: A review on the durability aspects

Properties of a Plasma-Nitrided Coating and a CrNx Coating on the Stainless Steel Bipolar Plate of PEMFC

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