Investigation of Corrosion Performance of Pure Aluminum as Bipolar Plate in PEMFC Environment

Jahan, Aklima; Alam, Md. Ashraful; Yonezawa, Sekai; Suzuki, Eiichi; Yashiro, Hitoshi

doi:10.1149/10205.0045ecst

Cited by 6 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the overall life and belongings will be at high risk in different fields and ways, such as manufacturing in industries, direct loss in the economy, creating intense difficulties in ecology, and so on, if not taking proper steps to control the corrosion. Thus, corrosion studies of Al‐based materials have received significant consideration from scientists owing to their extensive industrial applications and financial implications [27–34]. Though the previous reports have been found on the corrosion characteristics of Al in different media such as halide [35, 36] and some weak acidic media such as hydrochloric acid, and sulfuric acid [37–39], the present works show the connection of the Al materials for use as BP in PEMFCs.…”

Section: Introductionmentioning

confidence: 72%

Corrosion behavior and surface structure analysis of pure aluminum immersed in fluoride‐sulfate solutions simulating polymer electrolyte membrane fuel cell‐produced water

Alam,

Jahan,

Suzuki

et al. 2024

Fuel Cells

Self Cite

View full text Add to dashboard Cite

Bipolar plates are the key component in polymer electrolyte membrane fuel cells (PEMFCs), which ensure the low cost of the fuel cell stack and furnish some of the important applications such as distributing the reactant gases, conducting the electrons, and removing the waste heat in PEMFCs. Thus, metallic bipolar plates (BPs), such as aluminum (Al), have attracted immense consideration and afford better performance in different machine‐driven applications and mass manufacturing opportunities. In order to increase the corrosion resistance of Al BPs, several methods are used and conducted by scientists. The corrosion behavior and surface structure analysis of pure Al were studied through the immersion process in fluoride‐sulfate solutions, assuming its use as BPs in PEMFC‐produced water. The open cell voltage, interfacial contact resistance, and polarization tests and the fuel cell operations were performed to evaluate cell voltage, current density, corrosion resistance, and the effect of fluoride and sulfate ions on the BPs in PEMFC. The hydrophobicity character of the surface of Al BPs was observed by the measurement of the wettability test. The atomic force microscopy images were taken to study the surface roughness, which was correlated with the corrosion rates of Al BPs. In addition, the amount of corrosion was calculated after 24–120 h of immersion in fluoride‐sulfate solutions. The scanning electron microscopy, transmission electron microscopy, and energy‐dispersive X‐ray spectroscopy data were analyzed to investigate the surface structure, morphology, and elemental analyses. Thus, the results found in this study revealed that Al‐based materials can be suitable for BPs in PEMFCs. Furthermore, it is noticed that the amount of corrosion was influenced by the presence of even a very small amount of fluoride ions present in the PEMFC environment, while it was suppressed efficiently by sulfate ions.

show abstract

Section: Introductionmentioning

confidence: 72%

Corrosion behavior and surface structure analysis of pure aluminum immersed in fluoride‐sulfate solutions simulating polymer electrolyte membrane fuel cell‐produced water

Alam,

Jahan,

Suzuki

et al. 2024

Fuel Cells

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, the corrosion resistance required for the reaction gas isolation plate would not be as high as required for the flow path forming material. In our previous studies, some techniques were followed to check and reduce the corrosion resistance of Al used as bipolar plate in PEMFC in different conditions (31)(32)(33). Yet some study for modification and surface treatment is required to evaluate the Al based materials for using in PEMFC as bipolar plate.…”

Section: Fig 1 Overview Of a Pemfcmentioning

confidence: 99%

(Digital Presentation) Corrosion Behavior of Aluminum-Carbon Composite Bipolar Plates in Polymer Electrolyte Membrane Fuel Cells

Jahan¹,

Alam²,

Yonezawa³

et al. 2022

ECS Trans.

View full text Add to dashboard Cite

Bipolar plate, aluminum is one of the most promising alternatives that can capable of uniform distribution of reactive gases over active areas and removal of the heat and exhaust water from the PEMFC. In this work, PEM fuel cell was operated using the bipolar plate constructed of two materials: a channel former made of glassy carbon and a gas isolation plate made of aluminum. Aluminum gas isolation plate at cathode side remained glossy after even1000 h cell operation. In contrast, an oxide layer with a thickness of about 1 μm was formed on the gas isolation plate at anode side. In the simulated corrosion test, a thick oxide layer was formed when aluminum was immersed in water while only a thin oxide layer was formed in the saturated water vapor. The microscopic images, scanning electron microscopy (SEM) images, energy dispersive X-ray (EDX) spectra and transmission electron microscopy (TEM) images were taken to evaluate the surface morphology, elemental composition and other analyses.

show abstract

“…[34,4] Hence, the corrosion studies of Al based materials have received significant thought by the scientist because of their wide industrial and economic applications. [35][36][37][38]6] Previous reports have focused on the corrosion study of Al and Al based materials such as Al alloys in weak acidic media using hydrochloric acid, [39] sulfuric acid, [40,41] aqueous alkaline solutions, [42][43][44] sodium chloride solution with essential oil varying concentrations, [45] neutral dilute salt solutions, halide media, [46,42] sodium sulfate solutions, [47] carbon dioxide aqueous solutions, [48] sulfuric acid and sodium fluoride media at 80 °C, [49] dilute sodium fluoride sulfate solutions in PEFC, [50,51] hydrochloric acid solutions, [52] and deaerated pure water. [53] Literally, the metallic materials corrosion in acidic media matters significant costs.…”

Section: Introductionmentioning

confidence: 99%

Fluoride Ions Effect on the Corrosion Behavior of Pure Aluminum in Deaerated 0.05 M Sulfuric Acid Solutions

et al. 2023

Self Cite

View full text Add to dashboard Cite

The corrosion study of aluminum‐based materials is the topic of a great scientific attention because of increasing the applications in many sectors of these materials. The fluoride ions (F−) effect on the corrosion behavior of pure aluminum in deaerated 0.05 M sulfuric acid (H2SO4) solutions at 25 °C was investigated. The electrochemical measurements such as open circuit potential and potentiodynamic polarization were accomplished to study the effect of fluoride and sulfate ions present in the test solutions. The optical microscopic and atomic force microscopic images were taken to view the morphologies and surface roughness of pure aluminum which coincidence with the corrosion rates found from the immersion of the test specimens using weight loss method. The surface morphology and elemental compositions of pure aluminum was evaluated by scanning electron microscope and energy dispersive X‐ray spectroscopy, respectively. The results showed that the general corrosion was formed on the surface of pure aluminum. It is also revealed that the surface roughness and amount of corrosion of pure aluminum were increased by the presence of even a very small amount of fluoride ions in deaerated sulfuric acid solutions.

show abstract

Investigation of Corrosion Performance of Pure Aluminum as Bipolar Plate in PEMFC Environment

Cited by 6 publications

References 12 publications

Corrosion behavior and surface structure analysis of pure aluminum immersed in fluoride‐sulfate solutions simulating polymer electrolyte membrane fuel cell‐produced water

Corrosion behavior and surface structure analysis of pure aluminum immersed in fluoride‐sulfate solutions simulating polymer electrolyte membrane fuel cell‐produced water

(Digital Presentation) Corrosion Behavior of Aluminum-Carbon Composite Bipolar Plates in Polymer Electrolyte Membrane Fuel Cells

Fluoride Ions Effect on the Corrosion Behavior of Pure Aluminum in Deaerated 0.05 M Sulfuric Acid Solutions

Contact Info

Product

Resources

About