Hydroquinone based sulfonated poly (arylene ether sulfone) copolymer as proton exchange membrane for fuel cell applications

Kiran, Vaishnav; Awasthi, Swati; Gaur, Bharti

doi:10.3144/expresspolymlett.2015.95

Cited by 14 publications

(18 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Proton conductivity: The proton conductivity of the membrane was measured by four-point probe technique as reported in our previous work [17,18]. Firstly, the membranes (2 cm × 2 cm) were immersed in distilled water for 24 h at room temperature.…”

Section: 6cmentioning

confidence: 99%

Crosslinked poly(ether ether ketone): cost-effective proton exchange membranes for fuel cell application

2018

View full text Add to dashboard Cite

Sulphonated poly(ether ether ketone) copolymers bearing pendant carboxylic acid (SPEEK-C) have been synthesized via nucleophilic condensation reaction of 4,4-difluorobenzophenone, sulphonated 4,4-difluorobenzophenone and 3,5-dihydroxy benzoic acid. The structure of the sulphonated copolymer was identified from FT-IR and 1 H-NMR spectrum. The pendant carboxylic groups of SPEEK-C were further crosslinked with poly(vinyl alcohol) (PVA) to fabricate the crosslinked (SPEEK/PVA) membranes. The performance of the membranes was evaluated in terms of water uptake, proton conductivity and oxidative stability. The thermal stabilities of the membranes were determined by thermogravimetric analysis and differential scanning calorimetry techniques, whereas the morphological analysis was performed by atomic force microscopy.

show abstract

Section: 6cmentioning

confidence: 99%

Crosslinked poly(ether ether ketone): cost-effective proton exchange membranes for fuel cell application

2018

View full text Add to dashboard Cite

show abstract

“…The IR spectrum of CSUL char shows a first peak located at 617 cm −1 , with a weak intensity that corresponds to the SO bond according to data reported in literature . A vibrational peak at 726 cm −1 corresponds to the aromatic moiety with an average intensity.…”

Section: Resultsmentioning

confidence: 99%

Sulfonated char from waste tire rubber used as strong acid catalyst for biodiesel production

Sánchez-Olmos

Medina-Valtierra

Kamaraj

et al. 2016

Env Prog and Sustain Energy

View full text Add to dashboard Cite

A new acid catalyst based in a carbonaceous solid was functionalized using sulfuric acid as source of ASO 3 H acid groups. This carbon-based material prepared by the pyrolysis of waste tire rubber was used either as catalyst or as catalytic support. The pyrolysis process was performed with a flow of N 2 at relatively low temperature to obtain a mesoporous carbon and achieve an effective sulfonation. The sulfonation method of carbon obtained from tire rubber was through direct immersion into concentrated H 2 SO 4 under reflux. The mesoporous solids were characterized by several analytic techniques including an elemental analysis derived from scanning electronic microscopy (SEM). These ones indicated the presence of polycyclic disordered carbon plates in the carbonaceous structure with a low surface area and wide pores that provided many surface acid sites. The high catalytic activity and stability of this catalyst is related to the acid site density of Bronsted acid sites and to its homogeneous distribution. The hydrophobicity presented by this material favorably prevented hydration of hydrophilic AOH and ASO 3 H functional groups. The transesterification and esterification of waste oil under sub-critical methanol mainly in the presence of sulfonated char were achieved. Hence, it was required shorter times, low temperature and significantly, a low amount of methanol compared to other studies.

show abstract

“…36 Following equation is used to calculate the water uptake percentage 37 Solubility of prepared membranes was checked in water, methanol, and aprotic solvent like DMF and DMSO. Solubility test is done by keeping the small piece of membrane in different protic and aprotic solvents at 80 C. 38 Water content is defined as the average number of water molecules per ion exchange site (…”

Section: Physicochemical Propertiesmentioning

confidence: 99%

Synthesis and characterization of poly 2‐ N ‐acrylamido‐2‐methyl−1‐propane sulfonic acid functionalized graphene oxide embedded electrolyte membrane using DOE for PEMFC

et al. 2020

View full text Add to dashboard Cite

A novel proton exchange membrane consisting of 2-N-acrylamido-2-methyl −1-propane sulfonic acid modified graphene oxide nanocomposite (PAMPS-mGO), carboxylated poly(vinyl chloride) (CPVC), and poly 2-N-acrylamido-2-methyl−1-propane sulfonic acid (PAMPS) has been successfully prepared by simple and scalable polymer blending methodology. Different compositions of PEM in terms of its constituting precursors such as PAMPS-mGO, CPVC, and PAMPS were optimized by Placket Burman Design and their ion exchange capacity (IEC), oxidative stability, water uptake percentage, mechanical stability, and proton conductivity were evaluated. The amounts of significant precursors were further optimized by Central Composite Design. The membrane with excellent performance in PEMFC was obtained when appropriate proportions of CPVC (10%), PAMPS (20%), and PAMPS-mGO (20%) were blended. Among all membrane with mentioned composition exhibited IEC 1.3 mmol/g, oxidative stability 97.2%, WU 40.8%, proton conductivity 151 S/cm, water content 17.43, current density 1537 mA/cm 2 at 120 C, power density 566.5 mW/cm 2 at 120 C, Young modulus 797 MPa, tensile strength 16.8 MPa, and elongation at break % of 2.7 MPa. These results are in good comparison with PEM based on Nafion. Thus, the CPVC, PAMPS, and PAMPS-mGO-based composite PEM is a good candidate for PEMFC at elevated temperature under anhydrous conditions.

show abstract

Hydroquinone based sulfonated poly (arylene ether sulfone) copolymer as proton exchange membrane for fuel cell applications

Cited by 14 publications

References 38 publications

Crosslinked poly(ether ether ketone): cost-effective proton exchange membranes for fuel cell application

Crosslinked poly(ether ether ketone): cost-effective proton exchange membranes for fuel cell application

Sulfonated char from waste tire rubber used as strong acid catalyst for biodiesel production

Synthesis and characterization of poly 2‐ N ‐acrylamido‐2‐methyl−1‐propane sulfonic acid functionalized graphene oxide embedded electrolyte membrane using DOE for PEMFC

Contact Info

Product

Resources

About