Synthesis and fabrication of Cu-trimesic acid MOF anchored sulfonated Poly(2,5-benzimidazole) membranes for PEMFC applications

Moorthy, Siva; Mahimai, Berlina Maria; Dinakaran, K.; Deivanayagam, Paradesi

doi:10.1016/j.ijhydene.2023.05.362

Cited by 9 publications

(9 citation statements)

References 46 publications

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“…The peaks at 3040 and 3410 cm −1 are assigned to the C�N stretching vibration and hydrogen-bonded N−H stretching vibration. 8,46 Figure S8 displays the O 1s spectrum exhibiting a binding energy at 532.17 eV, confirming the presence of O in the composite membrane. 8,46 Figure 4 displays the thermal stability of both sABPBI and composite membranes.…”

Section: Characterization Of Sabpbi and Composite Membranesmentioning

confidence: 62%

“…The N 1s spectrum displays three peaks at binding energies of 401.16, 400.78, and 400.45 eV, corresponding to the −NH–, −N–, and N– group of the benzimidazole. Figure S8 displays the O 1s spectrum exhibiting a binding energy at 532.17 eV, confirming the presence of O in the composite membrane. , …”

Section: Resultsmentioning

confidence: 99%

“…8,46 Figure S8 displays the O 1s spectrum exhibiting a binding energy at 532.17 eV, confirming the presence of O in the composite membrane. 8,46 Figure 4 displays the thermal stability of both sABPBI and composite membranes. The weight loss observed in the composite membranes between 100 and 410 °C is due to the breakdown of −SO 3 H groups from the polymer and MOF.…”

Section: Characterization Of Sabpbi and Composite Membranesmentioning

confidence: 99%

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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: Characterization Of Sabpbi and Composite Membranesmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Sabpbi and Composite Membranesmentioning

confidence: 99%

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

Moorthy,

Deivanayagam

2024

ACS Appl. Mater. Interfaces

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“…These hybrids have at least one component, either an organic or an inorganic component, with a characteristic length on the nanometer scale. Along with the remarkable synergy produced by a hybrid interface, the qualities of hybrid materials are achieved via the total of individual contributions of each of their constituent parts. , …”

Section: Introductionmentioning

confidence: 99%

“…Along with the remarkable synergy produced by a hybrid interface, the qualities of hybrid materials are achieved via the total of individual contributions of each of their constituent parts. 22,23 In supercapacitor electrolytes are classified into three types: 24 (i) liquid electrolytes (organic, aqueous, redox), (ii) solid/semi solid-state electrolytes (dry/gel polymer, inorganic), and (iii) redox active electrolytes (aqueous, ionic liquid, organic, gel polymer). In terms of solid electrolytes, poly(vinyl alcohol) (PVA) is the most often utilized gel electrolyte for stretchable supercapacitors, with modest strain capability.…”

Section: Introductionmentioning

confidence: 99%

Selective Proton-Conducting Polystyrene-Based Polyelectrolyte Membrane Containing Bi₂O₃ Nanoparticles and Graphitic Carbon Nitride Nanosheets for Fuel Cells and Supercapacitors

Maria Mahimai,

Moorthy,

Sivasubramanian

et al. 2023

ACS Appl. Nano Mater.

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The focus of this research is to design and develop polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (PSEBS) membranes doped with bismuth oxide pyrolyzed with graphitic carbon nitride (Bi 2 O 3 -GCN). The substantial concentration of Bi 2 O 3 -GCN in the acidic moieties of the hydrophilic polymer promotes phase separation, resulting in good phase morphology. The bond stretching, crystallinity, and thermal stability of the sulfonated PSEBS and composite membranes were characterized using FT-IR, XRD, and TGA. The S-PSEBS/Bi 2 O 3 -GCN membrane was fabricated as a flexible solid-state electrolyte in symmetric supercapacitors and as an electrolyte in proton exchange membrane fuel cells (PEMFCs). For use in PEMFC, physicochemical and electrochemical characterizations were performed, and it was found that during the addition of Bi 2 O 3 -GCN, the conductivity reached a value of 0.0547 S/cm for S-PSEBS/Bi 2 O 3 -GCN-8, whereas S-PSEBS exhibits 0.018 S/cm. The composite membrane loaded with 8.0 wt % Bi 2 O 3 /GCN produced a maximum peak power density of 19 mW/cm 2 . Activated carbon as a positive and negative electrode and Bi 2 O 3 -GCN membrane were assembled in a symmetric supercapacitor. The symmetric supercapacitor achieved a maximum voltage of up to 1.2 V and power and energy density up to the maximum values of 182.7 W kg −1 and 46.2 W h kg −1 . The combination of the S-PSEBS/ Bi 2 O 3 -GCN polymer membrane enables the pathway to enhance the effective material for energy conversion of fuel cell and energy storage of symmetric supercapacitor.

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ABPBI-based hollow fiber membranes for forward osmosis (FO) possessing low reverse salt flux

Thorat,

Lele,

Kharul

2024

Desalination and Water Treatment

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Synthesis and fabrication of Cu-trimesic acid MOF anchored sulfonated Poly(2,5-benzimidazole) membranes for PEMFC applications

Cited by 9 publications

References 46 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

Selective Proton-Conducting Polystyrene-Based Polyelectrolyte Membrane Containing Bi₂O₃ Nanoparticles and Graphitic Carbon Nitride Nanosheets for Fuel Cells and Supercapacitors

ABPBI-based hollow fiber membranes for forward osmosis (FO) possessing low reverse salt flux

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Synthesis and fabrication of Cu-trimesic acid MOF anchored sulfonated Poly(2,5-benzimidazole) membranes for PEMFC applications

Cited by 9 publications

References 46 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

Selective Proton-Conducting Polystyrene-Based Polyelectrolyte Membrane Containing Bi2O3 Nanoparticles and Graphitic Carbon Nitride Nanosheets for Fuel Cells and Supercapacitors

ABPBI-based hollow fiber membranes for forward osmosis (FO) possessing low reverse salt flux

Contact Info

Product

Resources

About

Selective Proton-Conducting Polystyrene-Based Polyelectrolyte Membrane Containing Bi₂O₃ Nanoparticles and Graphitic Carbon Nitride Nanosheets for Fuel Cells and Supercapacitors