Enhancement of fuel cell performance of sulfonated poly(arylene ether ketone) membrane using different crosslinkers

Munavalli, Balappa B.

doi:10.1016/j.memsci.2018.09.023

Cited by 24 publications

(15 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Eugenol based polymers have structures that are similar to polystyrene with the aromatic rings in the phenolic (-OH) groups used to release protons, therefore they have the potential to be used as polymer membrane fuel cells. This is in line with the advanced research on non-fluorinated polymers for fuel cell membranes such as sulfonated polystyrenes (PS), polyimides, poly(arylene ether ketone) [6], high-impact polystyrene (HIPS), HIPS doped with poly (styreneethylene-butylene) (SEBS) [7], and styrofoam waste [8].…”

Section: ■ Introductionsupporting

confidence: 71%

Synthesis, Characterization, and Study of Proton Exchange Polymer Membrane Properties of Sulfonated Copolymer Eugenol-diallyl Phthalate

et al. 2020

View full text Add to dashboard Cite

Synthesis biopolymer of sulfonated copolymer eugenol-diallyl phthalate (PEGDAF), its characterization, and study of proton exchange polymer membrane properties had been done. This synthesis was conducted by eugenol and diallyl phthalate reaction to form PEGDAF, which is sulfonated using sulfuric acid. In addition, the functional groups of the PEGDAF and its sulfonated form were analyzed using FT-IR. Furthermore, the polymer properties were determined by measuring values of sulfonation degree, cation exchange capacity, proton conductivity, and water uptake. FT-IR spectra showed that the vinyl group had been added to the process of PEGDAF formation, while spectra deconvolution was used to confirm the occurrence of sulfonation reaction. The sulfonation of PEGDAF in 2 h optimum reaction time produces a black solid with a melting point of 133 °C in 16.55% yield. The highest proton conductivity, cation exchange capacity (CEC), and water uptake were 8.334 × 10–6 S cm–1, 0.44 meq/g, and 73.0%, respectively.

show abstract

Section: ■ Introductionsupporting

confidence: 71%

Synthesis, Characterization, and Study of Proton Exchange Polymer Membrane Properties of Sulfonated Copolymer Eugenol-diallyl Phthalate

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The PEMFCs are built with different components like electrodes, gas flow kits, catalysts, and polymer electrolyte membranes. Even though all these components are essential to run the device, the performance of the PEMFCs is highly dependent on the nature of polymer electrolyte membranes. , For instance, the perfluorinated membranes like Nafion 117 and 212 are the most widely used as well as commercially explored proton exchange membrane (PEM) materials for fuel cell devices, , in view of their good proton conductivity and durability. , However, considering their high cost and performance issues, researchers are prompted to develop alternative materials of low cost, high proton conductivity, and high performance for PEMFCs. , …”

Section: Introductionmentioning

confidence: 99%

A Unique Approach for the Development of Hybrid Membranes by Incorporating Functionalized Nanosilica into Crosslinked sPVA/TEOS for Fuel Cell Applications

Hegde

Manuvalli

2022

ACS Appl. Energy Mater.

Self Cite

View full text Add to dashboard Cite

Proton exchange membrane fuel cell (PEMFC) technology is an emerging and sustainable energy source with environmental and socioeconomic benefits. The performance of PEMFC technology mainly depends on the properties of the membrane. Therefore, it is an obligation to improve the membranes' properties, such as proton conductivity, ion exchange capacity, and thermal properties. In this paper, we have developed the hybrid membranes by suitably incorporating sulfonated functionalized nanosilica (SFnSi) into the sulfonated tetraethyl orthosilicate (TEOS)-crosslinked poly(vinyl alcohol) (PVA) matrix. The physicochemical properties of the resulting membranes were investigated using a Fourier transform infrared spectrometer, a wide-angle X-ray diffractometer, a scanning electron microscope and an atomic force microscope, a differential scanning calorimeter, and a thermogravimetric analyzer. The mechanical properties of the developed membranes were studied using a universal testing machine. The proton conductivity and the dielectric properties of the membranes were measured using a high-precision impedance analyzer. The water uptake, swelling ratio, and ion exchange capacity of the membranes were determined and discussed based on their molecular structures. Finally, the fuel cell performance was evaluated at 80 °C using a fuel cell workstation. Among the membranes developed, the 2 mass % SFnSi-incorporated hybrid membrane (SFnSi-2-sPVA/TEOS) exhibited the highest ion exchange capacity and proton conductivity of 2.5 meq/g and 1.56 S/cm at 80 °C, respectively. Similarly, the same membrane demonstrated the highest power density of 1.75 W/cm 2 at a current density of 1.92 A/cm 2 . From these results, it is ascertained that a trade-off phenomenon generally exists between proton conductivity and thermal stability, which is overcome by judiciously choosing and incorporating SFnSi into the sulfonated crosslinked PVA/TEOS membrane. Among the developed hybrid membranes, the membrane with 2 mass % SFnSi is much superior to the commercially available Nafion 117 and Nafion 212 membranes. Thus, the SFnSi-2-sPVA/TEOS hybrid membrane could be a potential candidate for fuel cell application.

show abstract

“…It is an important mechanism to generate clean and reliable energy with heat and water as byproducts. 9 Customarily operating below 80 C, PEMFCs have an effectiveness of 40%-50% and a combined energy competence of 80%-95% if the produced heat can also be utilized (i.e., in combined heat and power units). Besides, PEMFC has high energy density, low operating temperatures, and no moving parts, in such a way making the PEMFC a serviceable power source for automobiles, maritime applications, and unmanned aerial vehicles.…”

Section: Introductionmentioning

confidence: 99%

“…The PEMFCs can precisely convert the chemical energy (i.e., hydrogen) to electricity via electrochemical reaction along with oxygen. It is an important mechanism to generate clean and reliable energy with heat and water as byproducts 9 . Customarily operating below 80 °C, PEMFCs have an effectiveness of 40%–50% and a combined energy competence of 80%–95% if the produced heat can also be utilized (i.e., in combined heat and power units).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of cross‐linked composite membranes by functionalization of single‐walled carbon nanotubes with 1,4‐butane sultone and sulfanilic acid for fuel cell

Munavalli

Hegde

2022

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

The materialistic viability of proton exchange membrane fuel cells predominantly depends on the membrane properties. Thus, in this paper, an emphasis was made on the preparation of cross-linked composite electrolyte membranes. Primarily, a terpolymer was synthesized by employing monomers of phenolphthalein, 4,4 0 -diflorobenzophenone, and sodium 5,5 0 -carbonyl bis(2-fluorobenzene-sulfonate). To enhance the mechanical characteristics of the terpolymer, it was cross-linked with bisphenol-A diglycidyl ether. Furthermore, to boost the performance of the fuel cell of the cross-linked terpolymer electrolyte, two different sulfonated single-walled carbon nanotubes were incorporated into cross-linked terpolymer matrix and the resulting developed electrolytes, respectively, denoted as Bu-singe-walled carbon nanotubes (SWCNTs) and Su-SWCNTs membranes. The physico-chemical characteristics of the successive electrolytes were tested using discrete techniques. Across the series of membranes, the proton conductivity of the 12 mass% of Bu-SWCNTs and Su-SWCNTs varied cross-linked composite membrane was found to be 0.131 and 0.126 S cm À1 at 80 C with a relative humidity of 100%. Similarly, the performance of the fuel cell examination ascertained the highest power density of 0.43 and 0.39 W cm À2 for the same membranes. These results are superior to the commercially available Nafion ® 117 membrane. Thereby, the above-mentioned cross-linked composite membranes might be utilized as constructive applicants for the fuel cell.

show abstract

Enhancement of fuel cell performance of sulfonated poly(arylene ether ketone) membrane using different crosslinkers

Cited by 24 publications

References 31 publications

Synthesis, Characterization, and Study of Proton Exchange Polymer Membrane Properties of Sulfonated Copolymer Eugenol-diallyl Phthalate

Synthesis, Characterization, and Study of Proton Exchange Polymer Membrane Properties of Sulfonated Copolymer Eugenol-diallyl Phthalate

A Unique Approach for the Development of Hybrid Membranes by Incorporating Functionalized Nanosilica into Crosslinked sPVA/TEOS for Fuel Cell Applications

Synthesis of cross‐linked composite membranes by functionalization of single‐walled carbon nanotubes with 1,4‐butane sultone and sulfanilic acid for fuel cell

Contact Info

Product

Resources

About