Sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene/sulfonated poly(ether sulfone) and hexagonal boron nitride electrolyte membrane for fuel cell applications

Kulasekaran, Poonkuzhali; Moorthy, Siva; Deivanayagam, Paradesi; Karthikeyan, S.; Hemalatha, Pushparaj

doi:10.1039/d2sm01123a

Cited by 5 publications

(2 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The three-phase morphology of PSEBS, a triblock copolymer, can potentially change the transport parameters. Hybrid, blending, mixing, and cross-linking techniques have all been used to raise the proton conductivity of PSEBS polymer and provide adequate structural firmness …”

Section: Introductionmentioning

confidence: 99%

“…32 The three-phase morphology of PSEBS, a triblock copolymer, can potentially change the transport parameters. Hybrid, 31 blending, 33 mixing, 6 and crosslinking 34 techniques have all been used to raise the proton conductivity of PSEBS polymer and provide adequate structural firmness. 35 Inorganic hybridization serves as a general approach to altering the microstructure of membranes by incorporating functional fillers into the S-PSEBS matrix.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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.

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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.

Self Cite

View full text Add to dashboard Cite

show abstract

Sulfonamide‐Sulfonimide Copolymers as Novel, Fluorine‐Lean Type of Proton Exchange Membranes for Fuel Cell Application

Brinke,

Wagner,

Thiele

et al. 2024

Chemistry A European J

View full text Add to dashboard Cite

In this work, a novel type of fluorine‐lean proton exchange membranes is presented, using sulfonamide‐sulfonimide functional groups for ion conduction. These groups are constructed on a polystyrene backbone for simple and cost‐efficient usage as well as rapid scalability. The polymer is further tailored by adjusting the sulfonamide functionality with various end‐groups, namely pentafluorophenyl, 4‐fluorophenyl, butyl and octyl groups. These groups affect the pKa, leading to pKa values of 5.7 for the pentafluorophenyl substitution and pKa 10.5 for the alkyl chain. The glass transition temperature of the sulfonamide homopolymers can be reduced from Tg = 151°C (Pentafluorophenyl) to 49°C (Octyl), making the ionomer more flexible at room temperature. The combination of the non‐swelling sulfonamide further mitigates the high water uptake of the sulfonimide while maintaining the nominal ion exchange capacity. This combination leads to extremely high proton conductivities with up to σ = 283 mS cm‐1 at room temperature, which is clearly outperforming Nafion and approaches values for acid doped systems. This approach can pave the way to a novel type of ion conducting class in proton exchange membrane fuel cells.

show abstract

Advances in boron nitride‐based materials for electrochemical energy storage and conversion

Sun,

Yang

et al. 2023

EcoEnergy

View full text Add to dashboard Cite

Energy storage and conversion (ESC) devices are regarded as predominant technologies to reach zero emission of carbon dioxide, which still face many challenges, such as poor safety, limited cycle life, low efficiency, etc. Hexagonal boron nitride (h‐BN), distinguished by its robust mechanical strength, chemical inertness, exceptional thermal stability, and superior ion conductivity, has appeared to meet some challenges of ESC devices. Typically, h‐BN can act as a perfect modifier to enhance the safety of batteries by improving the mechanical strength and heat dissipation of separators, extend cycle life of Li metal batteries by protecting solid state electrolyte from reducing and increase efficiency of fuel cells by improving the proton conductivity of membranes. Besides, recent progress on doping, surface modification, tailoring quantum dots, heterostructures, and hybridizations with other nanomaterials has made it possible to extensively apply h‐BN to other ESC technologies. This review provides a comprehensive overview of the up‐to‐date synthetic strategies for BN‐based materials and discusses the most recent breakthroughs on their application in electrochemical ESC technologies. Also, the challenges and future development for BN‐based materials in these fields are assessed.

show abstract

Sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene/sulfonated poly(ether sulfone) and hexagonal boron nitride electrolyte membrane for fuel cell applications

Abstract: Novel proton exchange membranes consist of sulfonated polystyrene ethylene butylene polystyrene (sPSEBPS), sulfonated poly ether sulfone (SPES) with hexagonal boron nitride (hBN) was fabricated by facile solution casting technique. The...

Cited by 5 publications

References 61 publications

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

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

Sulfonamide‐Sulfonimide Copolymers as Novel, Fluorine‐Lean Type of Proton Exchange Membranes for Fuel Cell Application

Advances in boron nitride‐based materials for electrochemical energy storage and conversion

Contact Info

Product

Resources

About

Sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene/sulfonated poly(ether sulfone) and hexagonal boron nitride electrolyte membrane for fuel cell applications

Abstract: Novel proton exchange membranes consist of sulfonated polystyrene ethylene butylene polystyrene (sPSEBPS), sulfonated poly ether sulfone (SPES) with hexagonal boron nitride (hBN) was fabricated by facile solution casting technique. The...

Cited by 5 publications

References 61 publications

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

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

Sulfonamide‐Sulfonimide Copolymers as Novel, Fluorine‐Lean Type of Proton Exchange Membranes for Fuel Cell Application

Advances in boron nitride‐based materials for electrochemical energy storage and conversion

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

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