Electrochemical behavior of nanocrystalline Ta/TaN multilayer on 316L stainless steel: Novel bipolar plates for proton exchange membrane fuel-cells

Alishahi, Mostafa; Mahboubi, F.; Khoie, S.M. Mousavi; Aparicio, Mario; Hübner, René; Soldera, F.; Gago, R.

doi:10.1016/j.jpowsour.2016.04.133

Cited by 87 publications

(23 citation statements)

References 56 publications

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“…Values of electrical conductivity are at the same order of magnitude with the results of other theoretical studies [28,37]. The result shows carbides and nitrides of transition metal are well conductive and corrosion resistant, which agrees well with the reported experimental results [2,3,11]. Apart from these carbides and nitrides, Ti-composed intermetallic compounds are also on the list, which is intuitive.…”

Section: Electrical Conductivitysupporting

confidence: 89%

“…With the increasing concern of fossil fuel reserves and environment protection, hydrogen energy has attracted much attention as well as related research. The polymer electrolyte membrane fuel cell (PEMFC), using hydrogen as the fuel, is an ideal candidate for power sources in automotive propulsion applications and power plants due to its high power density and efficiency, low working temperature, fast start-up, and near-zero emission [1][2][3][4]. However, the development of PEMFC is hindered by some issues, mainly insufficient durability and high cost [5].…”

Section: Introductionmentioning

confidence: 99%

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In Silico Screening and Design of Coating Materials for PEMFC Bipolar Plates

Liu

Feng

et al. 2018

Coatings

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Methods used to design coating materials for polymer electrolyte membrane fuel cells (PEMFCs) are unsystematic and time-consuming because current materials research relies on scientific intuition and trial and error experimentation. In this study, a feasible and more efficient scheme of screening and designing coating materials is established based on density function theory (DFT) utilizing the fast-growing computing capacity. The scheme consists of four steps: Elements selection by calculation of Pilling–Bedworth ratio and electrical resistivity, corrosion resistance assessment leveraging the Pourbaix diagram approach, running BoltzTrap code to calculate electrical conductivity ( σ / τ ), and interface binding strength evaluation by calculation of separation work. According to the calculation results, TiCo and TiCo3 are proposed to be the two most promising candidates because of relatively better properties required by harsh working environment of PEMFC. The high-throughput screening strategy established in this study makes the ideal of rapidly evaluating hundreds of thousands of possible coating materials candidates into reality and helps to indicate the direction of further synthesis efforts.

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Section: Electrical Conductivitysupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

In Silico Screening and Design of Coating Materials for PEMFC Bipolar Plates

Liu

Feng

et al. 2018

Coatings

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“…Moreover, coated substrate exhibited greater chemical stability in simulated cell environments. Alishahi et al [62] conducted an experiment by depositing a Ta/TaN multilayer coating on 316L SS bipolar plates so as to enhance its electrical conductivities and electrochemical properties. The coating was done by reactive magnetron sputtering.…”

Section: Coating With Metal Nitridesmentioning

confidence: 99%

Evaluating the Effect of Metal Bipolar Plate Coating on the Performance of Proton Exchange Membrane Fuel Cells

et al. 2018

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Environmental concerns of greenhouse gases (GHG) effect from fossil commodities and the fast increase in global energy demand have created awareness on the need to replace fossil fuels with other sources of clean energy. PEM fuel cell (PEMFC) is a promising source of energy to replace fossil fuels. The commercialization of the cell depends on its price, weight and mechanical strength. Bipolar plates are among the main components of PEMFC which perform some significant functions in the fuel cell stack. Metal bipolar plate is considered by the research community as the future material for fuel cells. However, surface coating is required for metals to enhance its corrosion resistance, hydrophilicity and interfacial contact resistance (ICR) in PEM fuel cells. Open pore cellular metal foam (OPCMF) materials have been used to replace the conventional flow field channel in recent times due to its low electrical resistance, high specific area and high porosity; however, it endures the same corrosion problem as the metallic bipolar plate. This investigation offers an overview on different types of bipolar plates and techniques in coating metallic bipolar platse and open pore metal foam as flow field channel materials to improve the corrosion resistance which will eventually increase the efficiency of the fuel cell appreciably.

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“…The steels with varying Ni, Mo, and Cr were ranked according to their performance in both half‐ and single‐cell conditions as 349TM >904L >317L >316L. Coatings, such as graphene, Cr‐C, TiN/CrN, TaN, Zr‐C, CrN, NbN, Ti/TiN, Cr/CrN, etc., are expected to improve corrosion resistance and reduce ICR values simultaneously 16‐25 . However, the modification processes utilizes sophisticated coating techniques like, physical vapor deposition, chemical vapor deposition, magnetron sputtering, etc., which enhances the cost 26,27 .…”

Section: Introductionmentioning

confidence: 99%

Corrosion characteristics and fuel cell performance of a cost‐effective high Mn–Low Ni austenitic stainless steel as an alternative to SS 316L bipolar plate

Kumar

Shaik

Saravanan³

et al. 2020

Int J Energy Res

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Summary In this study, newly developed high manganese (Mn) and low nickel (Ni) austenitic stainless steels were investigated as an alternative to conventionally used SS 316L for bipolar plate applications in proton exchange membrane fuel cells. Systematic studies on the corrosion behavior were carried out in simulated hydrogen and oxygen environments, for both half‐ and fuel‐cell conditions. The Mn‐based SS revealed nobler corrosion potential and comparable passive current densities to that of SS 316L. The passive current density of Mn‐based SS is well within the DoE 2020 target of <1 μA cm−2. Though MnSS1 steel has lean Ni content, the addition of Mn and N is beneficial for improving the corrosion performance, which is comparable to SS 316L. The recorded ICR values for Mn SS1 and SS 316L are 234.6 ± 20 and 155 ± 20 mΩ cm2 at a compaction force of 140 N cm−2, respectively. Both the steels do not to meet the DoE ICR target of 10 mΩ cm2, which requires conductive coating or improvement in oxide conductivity. The performances of the steels (both Mn‐SS and 316L SS) with varying thickness were also investigated in a single fuel cell condition with serpentine flow field design as bipolar plates with varying thickness (10, 5 and 2 mm). A maximum power density of 370 mW cm−2 was achieved with the Mn‐based metallic bipolar plates, whereas SS 316L showed 354 mW cm−2. By changing the composition of austenitic stainless steel, that is, using Mn SS1 instead of SS 316L the overall fuel cell cost decreases by three times.

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Electrochemical behavior of nanocrystalline Ta/TaN multilayer on 316L stainless steel: Novel bipolar plates for proton exchange membrane fuel-cells

Cited by 87 publications

References 56 publications

In Silico Screening and Design of Coating Materials for PEMFC Bipolar Plates

In Silico Screening and Design of Coating Materials for PEMFC Bipolar Plates

Evaluating the Effect of Metal Bipolar Plate Coating on the Performance of Proton Exchange Membrane Fuel Cells

Corrosion characteristics and fuel cell performance of a cost‐effective high Mn–Low Ni austenitic stainless steel as an alternative to SS 316L bipolar plate

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