Design and Development of Copper Trimesic Acid Anchored sPEEK/Polyimide Composite Membranes for Fuel Cell Applications

Aparna, M.; Hemalatha, Pushparaj; Deivanayagam, Paradesi; Raj, David Akash

doi:10.1002/slct.202204584

Cited by 8 publications

(7 citation statements)

References 69 publications

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“…After that, 33 mL methylbenzene were added, and resulted PI was then stirred at 172 C for 8 h reflux condensation to obtain a PI solution. 34 Then, the product was cooled at room temperature and poured on 500 mL of deionized water with vigorous stirring. The obtained filiform PI were washed with deionized water and dried at 120 C for 12 h in air dry oven.…”

Section: Synthesis Of Polyimidementioning

confidence: 99%

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Preparation and performance study of ionic liquid @ boron nitride modified polyimide proton exchange membrane

Wang

et al. 2023

Polymer Composites

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Proton exchange membrane (PEM) plays a relatively significant part in PEM fuel cells (PEMFCs). In this study, ionic liquid were grafted onto boron nitride (ILs@BN) were prepared by wet ball milling, and the polyimide (PI) composite films with different contents (1, 2, 3, 4, and 5 wt%) of ILs@BN were fabricated by solution‐casting method. Results showed that compared with the original polyimide films, the performance of the obtained composite films has been significantly improved. Tensile strength of film containing 4 wt% ILs@BN was enormously enhanced by 93.62% (from 47 to 91.8 MPa), respectively, in contrast to pure PI film. Compared with pure PI film, film containing with 4 wt% ILs@BN was reduced from 71.2° to 63.2°, which indicated the better hydrophilicity of the film and potential proton transport channels. The composite film exhibited excellent proton conductivity, which was tremendously elevated by 58.35% (from 0.1215 S cm−1 for pure PI to 0.1924 S cm−1 for film containing with 4 wt% ILs@BN). Comprehensively, the film containing with 4 wt% ILs@BN presenting excellent mechanical properties (91.8 MPa), contact angle (63.2°) and proton conductivity (0.1924 S cm−1) demonstrating strong potential applications in fuel cells.

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Section: Synthesis Of Polyimidementioning

confidence: 99%

“…Generally speaking, PI composite film has better performance than PI film. Aparna et al 34 developed a copperbased metal organic framework (MOF) mixed PI composite film. Experimental data shows that adding MOF to the polymer matrix can improve the proton conductivity of membrane.…”

Section: Introductionmentioning

confidence: 99%

Preparation and performance study of ionic liquid @ boron nitride modified polyimide proton exchange membrane

Wang

et al. 2023

Polymer Composites

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“…Acid−base polymer membranes incorporated with fillers are promising candidates as PEMs because of their exceptional proton conductivity and durability at high operating temperatures. 7,8 Various composite membranes have been fabricated with different polymer matrixes, like poly(benzimidazole) (PBI), poly(vinylidene fluoride), 9 poly(ether ether ketone), 10 poly(styrene−ethylene−butylene− styrene), 11 poly(vinyl alcohol), 12 polyimide, 13 etc.…”

Section: Introductionmentioning

confidence: 99%

“…However, it still cannot meet all of the parameters needed for PEMFC due to its high cost, difficulty in the synthesis procedure, limited proton conductivity, and stability under high operating temperatures. , Developing PEMs with electrochemical durability, chemical and thermal stability, and high proton conductivity is a significant area of research. Acid–base polymer membranes incorporated with fillers are promising candidates as PEMs because of their exceptional proton conductivity and durability at high operating temperatures. , Various composite membranes have been fabricated with different polymer matrixes, like poly(benzimidazole) (PBI), poly(vinylidene fluoride), poly(ether ether ketone), poly(styrene–ethylene–butylene–styrene), poly(vinyl alcohol), polyimide, etc.…”

Section: Introductionmentioning

confidence: 99%

Sulfonated Cobalt Metal–Organic Framework Embedded Mixed Matrix Membrane towards Fuel-Cell Applications

Moorthy,

Deivanayagam

2024

ACS Appl. Mater. Interfaces

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New strategies for enhancement of the fuel-cell performance of a poly(2,5-benzimidazole) (ABPBI) membrane loaded with a functionalized cobalt-based metal−organic framework (MOF) for H 2 −O 2 fuel cells. ABPBI was prepared using the polycondensation method, and various proportions of sulfonated cobalt MOF (sCo-MOF) were incorporated into ABPBI to fabricate a proton-exchange membrane (PEM). Later, the fabricated membranes were soaked in 1 M sulfuric acid to produce sulfonated PEMs. The developed composite membranes had increased proton conductivity, tensile strength, physicochemical properties, and fuelcell performance compared to the sulfonated ABPBI (sABPBI) membrane. A membrane embedded with 4 wt % sCo-MOF shows higher water uptake and ion-exchange capacity values of 23.25% and 2.89 mequiv g −1 , respectively. The membrane electrode assemblies were fabricated to perform unit-cell tests for both sABPBI and 4 wt % sCo-MOF/sABPBI membranes. The 4 wt % sCo-MOF-loaded sABPBI membrane demonstrated good unit-cell performance in the fuelcell test, with a power density of 415.8 mW cm −2 at 80 °C, superior to the pristine sABPBI membrane's power density of 178.6 mW cm −2 .

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“…28 However, Nafion membrane has some disadvantages like (i) lower conducting performance at higher temperature, (ii) lower dimensional stability in fuel aqueous solutions, (iii) difficulty in synthesis, (iv) high fuel crossover, and (v) high production cost. 29 Nonfluorinated acid ionomers like sulfonated poly(ether ether ketone) (SPEEK), 30 sulfonated poly ether sulfone (SPES), 31 polybenzimidazole (PBI), 32 sulfonated polyimide (SPI), 33 and sulfonated polytriazole 34 were developed as alternatives to Nafion.…”

Section: Introductionmentioning

confidence: 99%

Navigating Excellence: A Comprehensive Review on the Versatile Potential of High-Performance N-Heterocyclic Triazole as an Electrolyte for Proton Exchange Membrane Fuel Cells

Sudhakaran,

Sivasubramanian,

Moorthy

et al. 2024

Ind. Eng. Chem. Res.

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Proton exchange membrane fuel cells (PEMFCs) are a highly efficient energy producing device that stands as a novel approach to sort out the energy demand faced by the world. The proton exchange membrane plays a significant role for the function of PEMFCs. Possessing dual functional behavior for ease of proton transfer which other aromatic polymers fail to own naturally has made the triazole moiety a unique PEM material. The material’s elevated self-dissociation capability, facilitating proton conduction, coupled with its high dielectric constant led to an increased demand for its application, highlighting its significance in various usage scenarios. For instance, by self-diffusion, 1H-1,2,3-triazole and 1H-1,2,4-triazole materials exhibited conductivities of 1.3 × 10–4 and 1.5 × 10–4 S/cm, respectively, in their pure forms. Various research groups utilize the triazole molecule as an ionic cross-linker, as a source for the introduction of functional groups, and as a dopant that eventually increases the proton conductivity. This review focuses on the advantages and different proton conduction processes that have been carried out in triazole materials like 1H-1,2,3-triazole, 1H-1,2,4-triazole, poly(1-vinyl-1,2,4-triazole), and the new originating sulfonated polytriazole.

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Design and Development of Copper Trimesic Acid Anchored sPEEK/Polyimide Composite Membranes for Fuel Cell Applications

Cited by 8 publications

References 69 publications

Preparation and performance study of ionic liquid @ boron nitride modified polyimide proton exchange membrane

Preparation and performance study of ionic liquid @ boron nitride modified polyimide proton exchange membrane

Sulfonated Cobalt Metal–Organic Framework Embedded Mixed Matrix Membrane towards Fuel-Cell Applications

Navigating Excellence: A Comprehensive Review on the Versatile Potential of High-Performance N-Heterocyclic Triazole as an Electrolyte for Proton Exchange Membrane Fuel Cells

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