Preparation of corrosion-resistant and conductive trivalent Cr–C coatings on 304 stainless steel for use as bipolar plates in proton exchange membrane fuel cells by electrodeposition

Wang, Hsiang-Cheng; Sheu, Hung‐Hua; Lu, Chen-En; Hou, Kung-Hsu; Ger, Ming-Der

doi:10.1016/j.jpowsour.2015.05.105

Cited by 49 publications

(13 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wang et al. determined the hydrogen gas flow rate of 300 cm 3 min −1 that is equal to 0.018 m 3 h −1 .…”

Section: Resultsmentioning

confidence: 99%

“…Commercial MEAs with an area of 50 cm 2 active electrode as well as a 0.5 mg cm −2 platinum charge for the anode and cathode were used. This design can be described as follows: 316L stainless steel (Cr‐C coated) 304SS foil with a thickness of 0.1 mm at lower cost was selected as bipolar plate material by techniques well documented in the works of literature , , . The floor width, channel width and channel depth of the flow channels were determined as 1 mm, 1.2 mm and 0.5 mm, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Bipolar plate size was determined as 100 mm × 100 mm. Aluminium plates with a thickness of 15 mm were used as end plates and 2 mm thick brass plates were used as existing collectors , , . In the cell, the 35 Teslas (N35 80 × 80 × 20 mm) magnetic magnet was used for the production energy.…”

Section: Methodsmentioning

confidence: 99%

“…Wang et al. studied on Cr‐C‐coated bipolar plates that were generated by electroplating on the SS304 plates. Hu et al.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Techno‐economic Analysis of a More Efficient Hydrogen Generation System Prototype: A Case Study of PEM Electrolyzer with Cr‐C Coated SS304 Bipolar Plates

2019

View full text Add to dashboard Cite

This study presents a more efficient and innovative prototype of a hydrogen generation system using proton exchange membrane (PEM) electrolyzer. The aim of this study is to generate hydrogen gas energy that conducts the chemical reaction by electrolytic movements as well as to design a system that generates energy with H2 through new technology. The Cr‐C coated SS304 bipolar plates were used in the electrolysis cells and the septic mixture (urea, ammonia, methyl alcohol) was used in the electrolyzer as a chemical solution to make the hydrogen production more efficient and cost effective. The super strong magnets were also mounted on the outer surface of the electrolysis cells to improve the performance and efficiency. The performance of the electrolyzer was determined by operating the current and voltage parameters. The results were collected through experiments and the optimization of the different parameters. In this prototype study, the production of hydrogen gas in the system (1 MW) through the presented system was found to be as 6 m3 h−1 and the simple payback period (SPP) was calculated as 2.32 y. These results indicate that this system can produce hydrogen more efficiently and economically.

show abstract

“…Wang et al. determined the hydrogen gas flow rate of 300 cm 3 min −1 that is equal to 0.018 m 3 h −1 .…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Wang et al. studied on Cr‐C‐coated bipolar plates that were generated by electroplating on the SS304 plates. Hu et al.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Techno‐economic Analysis of a More Efficient Hydrogen Generation System Prototype: A Case Study of PEM Electrolyzer with Cr‐C Coated SS304 Bipolar Plates

2019

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

Corrosion Investigation of Chromium Nitride and Chromium Carbide Coatings for PEM Fuel Cell Bipolar Plates in Simulated Cathode Condition

2016

View full text Add to dashboard Cite

Transition metals nitrides and carbides are used as coatings on bipolar plates for proton exchange membrane fuel cells (PEMFCs) due to their suitable electrical conductivity and corrosion resistance. Chromium electroplated AISI 316L stainless steel bipolar plates were treated by plasma nitriding and solid carburizing to form chromium nitride and chromium carbide, respectively. The presence of CrN/Cr2N and Cr7C3/Cr23C6 was verified by X‐ray diffractometry (XRD) in chromium nitride and chromium carbide coatings, respectively. The corrosion behavior of coatings was investigated by potentiodynamic polarization, potentiostatic polarization and electrochemical impedance spectroscopy (EIS) in simulated cathode condition. Coated samples showed better corrosion behavior than untreated bare sample. EIS results indicated decrease in corrosion current density after 500 hours, however coatings acted as barrier against solution access to substrate. Corrosion current densities of coatings were close to targets of United Stated department of energy (DOE).

show abstract

Preparation of corrosion-resistant and conductive trivalent Cr–C coatings on 304 stainless steel for use as bipolar plates in proton exchange membrane fuel cells by electrodeposition

Cited by 49 publications

References 50 publications

Techno‐economic Analysis of a More Efficient Hydrogen Generation System Prototype: A Case Study of PEM Electrolyzer with Cr‐C Coated SS304 Bipolar Plates

Techno‐economic Analysis of a More Efficient Hydrogen Generation System Prototype: A Case Study of PEM Electrolyzer with Cr‐C Coated SS304 Bipolar Plates

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

Corrosion Investigation of Chromium Nitride and Chromium Carbide Coatings for PEM Fuel Cell Bipolar Plates in Simulated Cathode Condition

Contact Info

Product

Resources

About