A study of new anhydrous, conducting membranes based on composites of aprotic ionic liquid and cross-linked SPEEK for fuel cell application

Malik, Rajender Singh; Verma, Pawan Kumar; Choudhary, Veena

doi:10.1016/j.electacta.2014.11.167

Cited by 69 publications

(51 citation statements)

References 39 publications

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“…It is clearly shown that the PEEK polymer exhibits a semi crystalline structure with a peak at a 2θ of 15-30°. Also, it was found that there is a broad crystalline peak on the 2θ of 18-19°for the pristine SPEEK membrane, indicating that PEEK crystallinity was strongly decreased after sulfonation [43]. As shown in Fig.…”

Section: Structural Characterizationmentioning

confidence: 89%

Fabrication and physico-chemical properties of iron titanate nanoparticles based sulfonated poly (ether ether ketone) membrane for proton exchange membrane fuel cell application

2015

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Section: Structural Characterizationmentioning

confidence: 89%

Fabrication and physico-chemical properties of iron titanate nanoparticles based sulfonated poly (ether ether ketone) membrane for proton exchange membrane fuel cell application

2015

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“…The proton conductivity decreased, but the water uptake and mechanical resistance improved. Singh, Verma and Choudhary used ethyl glycol (EG) as a cross‐linking agent with heat treatment methods and with heating in an oven at 80°C (2 hours), 100°C (2 hours), 120°C (2 hours), and 135°C for 16 hours to provide the SPEEK membrane. The cross‐linking reduced the leakage of the ionic liquids and increased the mechanical strength of the SPEEK membrane.…”

Section: Additives In Different Types Of Membranesmentioning

confidence: 99%

Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

2019

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Summary Additives such as fillers, cross‐linkers, and plasticizers have become increasingly important in the polymer nanocomposite production field, especially for enhancing the structural morphology, functional behavior, and final performance of nanocomposites in broad applications. The current work is an overview of the effects of additive substances such as fillers, cross‐linkers, and plasticizers in the polymer electrolyte membrane composites applied to fuel cells. A comparative review is conducted by categorizing fillers into several types, and the most popular cross‐linkers and plasticizers used in fuel cell membranes are included in this review. The highlighted properties include the proton conductivity, permeability, mechanical properties, thermal properties, crystallinity, and structure of additive‐modified nanocomposites. Furthermore, the challenges and future prospects in the additive field are discussed in Section 5.0. This review can provide a reference for researchers seeking specific substances that can be used to enhance nanocomposite properties, especially in membrane fuel cell applications.

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“…Ionic liquids (ILs) have been considered as potential additives for PEMs due to their good thermal and chemical stability, low volatility, and their high ionic conductivity . They have been subject of study for different energy conversion and storage applications, including fuel cells.…”

Section: Introductionmentioning

confidence: 99%

Imidazolium ionic liquid incorporation on sulfonated poly(styrene‐isobutylene‐styrene) proton exchange membranes

Ortiz-Negrón

Lasanta-Cotto

Suleiman

2017

J of Applied Polymer Sci

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Ionic liquids (ILs) with different anions and cations were incorporated in sulfonated poly(styrene‐isobutylene‐styrene) (SIBS) to modify its chemical, morphological, and transport properties for direct methanol fuel cell (DMFC) applications. Different loadings of IL and different solvents were studied to have a better understanding of the incorporation process and the ability of the solvent to affect the interaction of the IL with the sulfonated polymer. Morphological characterization with SAXS and AFM suggested changes caused by the incorporation of the IL and by the solvent used. FT‐IR spectra showed small variations in energy related to interactions of the IL with the sulfonic groups which caused thermogravimetric stabilization of the ionic domains. Other results suggest that water has a very significant effect on the morphology, interaction with the IL, and transport properties of the membranes. Optimal concentration of IL (∼10 mol %) provides enough water to produce efficient proton conductivity (0.15 S/cm) and minimal methanol permeability (0.8 × 10−6 cm2/s). © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44900.

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A study of new anhydrous, conducting membranes based on composites of aprotic ionic liquid and cross-linked SPEEK for fuel cell application

Cited by 69 publications

References 39 publications

Fabrication and physico-chemical properties of iron titanate nanoparticles based sulfonated poly (ether ether ketone) membrane for proton exchange membrane fuel cell application

Fabrication and physico-chemical properties of iron titanate nanoparticles based sulfonated poly (ether ether ketone) membrane for proton exchange membrane fuel cell application

Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

Imidazolium ionic liquid incorporation on sulfonated poly(styrene‐isobutylene‐styrene) proton exchange membranes

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