Synthesis and fabrication of BST/SPVdF-co-HFP composites for proton exchange membrane fuel cell applications

Aparna, M.; Deivanayagam, Paradesi; Hemalatha, Pushparaj

doi:10.1007/s10965-022-03358-y

Cited by 9 publications

(2 citation statements)

References 67 publications

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“…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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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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“…Upon sulfonation, more hydrophilic channels are created in the matrix, which facilitates high proton conductivity. − Despite the benefits, sulfonated membranes are not appropriate for PEMFC due to their limited chemical, mechanical, thermal stability, and proton conductivity. At higher operating temperatures, performance of PEMFCs can be improved by incorporation of inorganic additives to the polymer matrix. − Inorganic fillers provide water retention capability, high mechanical stability, a facile proton transport pathway, and inhibit direct gas permeation. − To achieve desirable properties in polymer composites, it is necessary to have both significant adhesion and dispersion of fillers in the polymer matrix. − …”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Fabrication of Nickel Metal–Organic Framework-Incorporated Polymer Electrolyte Membranes for Fuel-Cell Applications

Mahalingam,

Pushparaj

2024

ACS Appl. Mater. Interfaces

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Proton-conducting sulfonated polymer metal−organic framework (MOF)-based composite membranes were synthesized by anchoring the nickel MOF (Ni-MOF) to the aromatic sulfonated polymer backbone. In this work, we sulfonated two different polymers, poly(1,4-phenylene ether ether sulfone) (PEES) and poly ether ether ketone (PEEK), with a controllable sulfonation degree, and the synthesized Ni-MOF was incorporated into the sulfonated polymers to prepare a polymer electrolyte membrane. The effect of an MOF as a pendant moiety on the polymer backbone had a significant effect on properties such as water uptake, thermal, mechanical, and oxidative stabilities, swelling ratio, ion-exchange capacity (IEC), morphology, proton conductivity, and fuel-cell performance. The presence of an MOF structure enhanced the water retention capacity of the composite membranes. Adding Ni-MOF to the composite membrane improved the fuel-cell performance by increasing the OCV and power density. Among the synthesized electrolytes, the 3 wt % Ni-MOF-incorporated sPEEK membrane displayed a power density of 319 mW/cm 2 with a cell voltage of 0.79 V, which was higher than the pure sulfonated polymer. Thus, the developed composite membranes are suitable for fuel-cell applications.

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RETRACTED ARTICLE: Sulfonated polysulfone containing phenyl side chain as proton exchange membrane

Qiao,

Deng,

Chen

2023

J Polym Res

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Synthesis and fabrication of BST/SPVdF-co-HFP composites for proton exchange membrane fuel cell applications

Cited by 9 publications

References 67 publications

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

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

Synthesis, Characterization, and Fabrication of Nickel Metal–Organic Framework-Incorporated Polymer Electrolyte Membranes for Fuel-Cell Applications

RETRACTED ARTICLE: Sulfonated polysulfone containing phenyl side chain as proton exchange membrane

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