Performance of a proton exchange membrane fuel cell stack using conductive amorphous carbon-coated 304 stainless steel bipolar plates

Yi, Peiyun; Peng, Linfa; Feng, Lizhong; Gan, Pin; Lai, Xinmin

doi:10.1016/j.jpowsour.2010.05.019

Cited by 90 publications

(41 citation statements)

References 25 publications

(28 reference statements)

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“…A high contact angle implies a high surface energy and low surface wettability of a material. 25 Water contact angles (WCA) were measured using a drop shape analyzer (DSA) (JC2000D, Powereach Corporation, Shanghai, China). The volume of a water droplet was ≈4 μL and the average values of 10 measurements were reported as the water contact angle.…”

Section: Contact-angle Testmentioning

confidence: 99%

ZrMoN films on 304 stainless steel as bipolar plates for PEMFCs using physical-vapor-deposition (PVD) technology

Zheng¹,

Chen²

2017

Mater. Tehnol.

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ZrMoN films were deposited on a 304 stainless-steel (SS304) substrate with a radio-frequency (RF) reactive magnetron-sputtering system and the properties were changed by adjusting the power of the Mo target. The corrosion behaviors of the ZrMoN films were investigated with potentiodynamic tests and electrochemical impedance spectroscopy (EIS) under the condition of an aerated 0.5M H2SO4 + 1,99 mg/L NaF solution at 70°C. The results revealed that all samples with ZrMoN films have good hydrophobicity. The XRD test showed that the ZrMoN film is the substitutional solid solution of Mo atoms into ZrN films. As an overall evaluation, the power of the Mo target is 30W. A coated sample displays the best corrosion resistance in the cathode of the PEMFC environment when the power of the Mo target is considered, which indicates that with an increase of the power of the Mo target, the solid solubility also increases; but with a continuous increase of the Mo-target power, the solubility increases and a lattice distortion also occurs, leading to an increase in defects. Keywords: ZrMoN, corrosion behavior, bipolar-plate material, physical-vapor-deposition technology (PVD) ZrMoN prevleke so bile nane{ene na substrat 304 nerjavnega jekla (SS 304) z radiofrekven~nim reaktivnim (angl. RF) magnetronskim napr{evalnikom in lastnosti so bile spremenjene s prilagoditvijo mo~i Mo tar~e. Korozijsko obna{anje prevlek ZrMoN smo raziskovali s potenciodinamskimi preizkusi in elektrokemijsko impedan~no spektroskopijo (EIS) v raztopini 0,5 M H2SO4 + 1,99 mg/L NaF pri temperaturi 70°C. Rezultati so pokazali, da imajo vsi vzorci z ZrMoN prevlekami dobro hidrofobnost. XRD-analiza ka`e, da je prevleka ZrMoN nadomestna trdna raztopina atomov Mo v ZrN plasti. Rezultati ka`ejo najbolj{o korozijsko odpornost na katodi v okolju PEMFC pri mo~i Mo tar~e 30 W, kar ka`e, da se s pove~anjem mo~i Mo pove~uje tudi trdna topnost. Vendar pa se s kontinuiranim pove~evanjem mo~i Mo tar~e neprestano pove~uje tudi topnost, zato pride do popa~enja kristalne mre`e, kar povzro~i pove~anje napak. Klju~ne besede: ZrMoN, korozijsko obna{anje, bipolarni material, tehnologija nana{anja iz parne faze (PVD)

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Section: Contact-angle Testmentioning

confidence: 99%

ZrMoN films on 304 stainless steel as bipolar plates for PEMFCs using physical-vapor-deposition (PVD) technology

Zheng¹,

Chen²

2017

Mater. Tehnol.

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“…Before coating, the samples were carefully cleaned with acetone in an ultrasonic cleaner for 30 min and then dried. The a-C film was then deposited onto the samples using a CFUBMSIP system and the process parameters were well documented in our previous publications [23,24].…”

Section: Sample Preparation and Testsmentioning

confidence: 99%

“…In-plane conductivity was measured by four-point probe technique with the probe diameter of 1.0 mm and the contact pressure of 1.2 MPa [24]. Besides, through-plane electrical resistance was determined by two-point measurement through circular copper plates with diameter of 50.0 mm under pressure of 0.015 MPa [16].…”

Section: Sample Preparation and Testsmentioning

confidence: 99%

“…Finally, a 5-layer MEA was fabricated by hot-pressing the pre-treated a-C coated SSSFF GDL and CCM together at 120 C under 8 MPa for 90 s. A PEM single cell (FC1) with a-C coated SSSFF-15 GDL was designed and assembled in house to validate the feasibility and in situ performance of porous metal GDL. a-C coated SS304 bipolar plates, aluminum end plates and brass currentcollector plates, developed by our previous work [24], were adopted to assemble the single cell. The bipolar plate is 100 mm Â 100 mm and fourteen equal-length serpentine flow channels are used to distribute reactant gas uniformly on the i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 3 7 ( 2 0 1 2 ) 1 1 3 3 4 e1 1 3 4 4 anode and cathode.…”

Section: 2mentioning

confidence: 99%

“…This trend can be explained by the fact that a-C coating decreases the contact resistance between GDL and a-C coated bipolar plates, thus reduces the ohmic losses of PEMFC. In order to compare the in situ performance of SSSFF-15 GDL with traditional carbon paper TGP-H-060 GDL, the results of the single cell (FC3) assembled with commercial MEA and a-C coated bipolar plates, published in our previous work [24], are adopted and plotted in Fig. 9.…”

Section: Initial Performancementioning

confidence: 99%

See 2 more Smart Citations

Investigation of sintered stainless steel fiber felt as gas diffusion layer in proton exchange membrane fuel cells

Peng

Lai

et al. 2012

International Journal of Hydrogen Energy

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A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity

Wen

Ning

et al. 2023

Advanced Science

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Proton exchange membrane fuel cells (PEMFCs) have garnered significant attention due to their high efficiency and low emissions. However, PEMFC always suffers mass transfer and water management in performance improvement. Herein, an integrated gas diffusion layer (GDL) with wavy channel and micro‐tunneled rib is designed and prepared to achieve faster and gentler mass transfer and excellent water management capability by laser engraving. Outstandingly, the new integrated GDL can use the back pressure of air as low as 0 and 50 kPa to respectively achieve 80% and 90% of fuel cell performance realized under pure oxygen. Such high performance is mainly due to the turbulent flow caused by wavy channel and express removing pathway of liquid water provided by micro‐tunneled rib. Moreover, the new integrated GDL also shows wide humidity tolerance from 40% to 100% and a very high specific volume power density of 16,300 W L−1 due to the thin thickness of new integrated GDL. This new integrated GDL is expected to be widely used in PEMFC and other energy conversion devices.

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Performance of a proton exchange membrane fuel cell stack using conductive amorphous carbon-coated 304 stainless steel bipolar plates

Cited by 90 publications

References 25 publications

ZrMoN films on 304 stainless steel as bipolar plates for PEMFCs using physical-vapor-deposition (PVD) technology

ZrMoN films on 304 stainless steel as bipolar plates for PEMFCs using physical-vapor-deposition (PVD) technology

Investigation of sintered stainless steel fiber felt as gas diffusion layer in proton exchange membrane fuel cells

A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity

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