Surface modification of sulfonated polyethersulfone membrane with polyaniline nanoparticles for application in direct methanol fuel cell

Nagar, Harsha; Sahu, Nivedita; Rao, V. V. Basava; Sridhar, S.

doi:10.1016/j.renene.2019.06.175

Cited by 54 publications

(25 citation statements)

References 39 publications

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“…A series of substances with good alkali resistance, such as cellulose, have been used to enhancethe alkali resistance of PVA-based polyelectrolyte [10]. In terms of aromatic polymer electrolytes, such as polyetherimide(PEI) [25], polyarylethersulfone(PAES) [26], polyaryletherketone(PEK) [27], polyphenylene oxide (PPO) [28], polybenzimidazole (PBI) [29], etc., they are good at chemical stability and thermal stability; however, their intrinsic poor solubility reduces their value in polyelectrolyte application [30]. Hydroxides such as potassium-, lithium-, and sodium-based alkali metal salts are commonly used in alkaline polyelectrolytes.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

et al. 2020

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In this study, a type of alkaline solid polyelectrolyte (ASPE) membrane was developed via the introduction of microcrystalline cellulose (MCC) and its modified product (QMCC) into the polyvinyl alcohol (PVA) matrix. In this process, green NaOH/urea-based solvent was used to achieve a good dispersion of MCC in the PVA matrix; meanwhile, the OH− groups in the NaOH/urea-based solvent provided an alkaline environment for good ion conductivity. Compared to the MCC-incorporated ASPE, further improved conductivity was achieved when the MCC was modified with quantitative quaternary ammonium salt. TGA showed that the addition of QMCC improved the water retention of the matrix, which was beneficial to the OH− conduction in the system. Compared to the control (50 mS cm−1), a maximum conductivity of 238 mS cm−1 was obtained after the incorporation of QMCC in the PVA matrix. Moreover, the tensile strength of the polymer electrolyte were also significantly increased with the addition of QMCC. Finally, this developed ASPE membrane was used in assembling a flexible Zn–air battery and showed a promising potential in the development of flexible electronic devices.

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Section: Introductionmentioning

confidence: 99%

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

et al. 2020

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“…However, usage of existing PFI membranes was limited owing to very high cost, operation temperature that is restricted to 70–80°C, and high methanol crossover 3 . In recent decades, researchers devoted their attention to the development of low‐cost, high‐performance PEMs for fuel cell applications 3–7 . Sulfonated polyethersulfone (SPES), 4,5 sulfonated poly(ether ether ketone) (SPEEK), 6–9 sulfonated polysulfone, 3,10,11 sulfonated poly(aryl ether ether ketone ketone)s, 12 sulfonated poly(ether ketone ketone), 13 and so on have been utilized for the preparation of PEMs owing to their outstanding mechanical properties, thermal stability, and conductivity and also to overcome the disadvantages of PFI membranes 6–13 …”

Section: Introductionmentioning

confidence: 99%

Enhanced performance of Mindel membranes by incorporating conductive polymer and inorganic modifier for application in direct methanol fuel cells

Ramachandran

Arthanareeswaran

Ismail

et al. 2020

Asia-Pacific J Chem Eng

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Sulfonated polyethersulfone (SPES), polyaniline (PANI), and Cloisite 15 A ® were used as modifiers for the fabrication of Mindel composite polymer electrolyte membranes (PEMs). Pristine Mindel and Mindel composite PEMs were fabricated by the solution intercalation technique. The presence of modifiers in the Mindel membrane matrix was confirmed by Fourier transform infrared (FTIR) studies. The primary characteristics of pristine Mindel and Mindel PEMs such as water uptake, methanol uptake, proton conductivity ion-exchange capacity (IEC), and chemical and mechanical stability were evaluated. The pore size of Mindel/SPES/Cloisite 15 composite PEM was increased owing to the addition of SPES and Cloisite 15. The higher proton conductivity of 4.323 × 10 −4 S cm −1 , enhanced IEC of 0.482 mequiv. g −1 , and maximum water uptake (%) of 38.12 were noted for Mindel/SPES/Cloisite membrane. Membrane selectivity of all Mindel PEMs was enhanced by the addition of modifiers. The results of this study indicate that Mindel composite membranes could be utilized as PEMs for direct methanol fuel cell (DMFC).

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“…Moreover, IEC values were significantly increased with the assigned up of PAMPS content (i.e., the sulfonic groups) in the membrane. The maximum IEC value (3.93 meq/g) was recorded for prepared membrane with PVA: PAMPS ratio of 1:3 [ 32 ].…”

Section: Resultsmentioning

confidence: 99%

Highly Conductive Polyelectrolyte Membranes Poly(vinyl alcohol)/Poly(2-acrylamido-2-methyl propane sulfonic acid) (PVA/PAMPS) for Fuel Cell Application

et al. 2021

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In this study, chemically cross-linked PVA/PAMPS membranes have been prepared to be used in direct methanol fuel cells (DMFCs). The structural properties of the resultant membrane were characterized by use FTIR and SEM. Additionally, their thermal stability was assessed using TGA. Moreover, the mechanical properties and methanol and water uptake of membrane was studied. The obtained FTIR of PVA/PAMPS membranes revealed a noticeable increase in the intensity of adsorption peaks appearing at 1062 and 1220 cm−1, which correspond to sulfonic groups with the increasing proportion of PAMPS. The thermograms of these polyelectrolyte membranes showed that their thermal stability was lower than that of PVA membrane, and total weight loss gradually decreased with increasing the PAMPS. Additionally, the functional properties and efficiency of these polyelectrolyte membranes were significantly improved with increasing PAMPS proportion in these blends. The IEC of polymer blend membrane prepared using PVA/PAMPS ratio of 1:1 was 2.64 meq/g. The same membrane recorded also a methanol permeability coefficient of 2.5 × 10−8 cm2/s and thus, its efficiency factor was 4 × 105 greater than that previously reported for the commercial polyelectrolyte membrane, Nafion® (2.6 × 105). No significant increase in this efficiency factor was observed with a further amount of PAMPS. These results proved that the PVA:PAMPS ratio of 1:1 represents the optimum mass ratio to develop the cost-effective and efficient PVA/PAMPS blend membranes for DMFCs applications.

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Surface modification of sulfonated polyethersulfone membrane with polyaniline nanoparticles for application in direct methanol fuel cell

Cited by 54 publications

References 39 publications

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

Enhanced performance of Mindel membranes by incorporating conductive polymer and inorganic modifier for application in direct methanol fuel cells

Highly Conductive Polyelectrolyte Membranes Poly(vinyl alcohol)/Poly(2-acrylamido-2-methyl propane sulfonic acid) (PVA/PAMPS) for Fuel Cell Application

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