A nanocomposite membrane composed of incorporated nano-alumina within sulfonated PVDF-co-HFP/Nafion blend as separating barrier in a single chambered microbial fuel cell

Kumar, Vikash; Kumar, Piyush; Nandy, Abhishek; Kundu, Patit Paban

doi:10.1039/c6ra03598a

Cited by 43 publications

(21 citation statements)

References 47 publications

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“…Agglomeration of nanoparticles at a 20 wt% amount caused a decrease in IEC value , which is not observed in PES10, thus suggesting an homogeneous dispersion of Fe 3 O 4 in the polymer matrix. This uniform dispersion resulted also in an increased oxygen transfer coefficient, even higher than that of PES20, due to enhanced void space in membranes caused by inorganic (magnetite) and organic (polymer) interspace . These preliminary results suggest that only a further increase in filler content will not be able to lead to an increase in water uptake and a decrease in oxygen permeability coefficient, which is needed to reach anaerobic conditions in the anodic chamber .…”

Section: Resultsmentioning

confidence: 83%

Effect of Pretreatment of Nanocomposite PES‐Fe₃O₄ Separator on Microbial Fuel Cells Performance

Bavasso

Palma

Puglia

et al. 2019

Polymer Engineering & Sci

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Nanocomposite membranes based on polyethersulfone (PES) and nanomagnetite have been investigated with regards to the effect of pretreatments on the electrochemical performance of microbial fuel cells (MFCs). Nanocomposite membranes containing various amounts of Fe 3 O 4 (5, 10, and 20 wt%) were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry, and tensile tests. The application in MFC systems requires also chemical characterizations such as ion exchange capacity, water uptake, and oxygen permeability. The best formulation (PES10) showed electrochemical properties similar to the PES20. With the aim of obtaining a highperformance membrane with a low filler dosage, a pretreatment procedure (1 h of boiling step in deionized water and 1 h of immersion in 0.5 M of H 2 SO 4 ) was adopted. The results of such pretreatment in terms of maximum power and current density were 10.59 AE 0.72 mW/m 2 and 52.07 AE 0.86 mA/m 2 , respectively. The adoption of a pretreatment avoids the need of higher amount of nanofillers that can affect membrane surface roughness and its processing. Overall, the nanocomposite membranes represent a suitable technology in the MFC process. POLYM. ENG. SCI., 60:371-379, 2020.POLYMER ENGINEERING AND SCIENCE-2020 FIG. 8. SEM micrographs at two image magnifications of the fouling layer on PES5 (a,b) and PES10 (c,d) membranes after 15-day operation of MFC.

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Section: Resultsmentioning

confidence: 83%

Effect of Pretreatment of Nanocomposite PES‐Fe₃O₄ Separator on Microbial Fuel Cells Performance

Bavasso

Palma

Puglia

et al. 2019

Polymer Engineering & Sci

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“…Alumina nanoparticles (Al2O3) ranging from 5-20 % (w/w) are incorporated within the matrix of sulfonated poly-(vinylidene fluoride-hexafluoropropylene) (PVDF-co-HFP) blended with Nafion at different molar ratios. 67 Increase in water uptake is observed with increased incorporation of Al2O3 nanoparticles. Membrane with 5 % w/w nano Al2O3 shows superior proton conductivity and improved maximum power and current densities of 48 and 11 % respectively.…”

Section: Polyether Ether Ketone (Peek) Nanocomposites As Pemmentioning

confidence: 96%

Polymeric nanocomposition for innovative functional enhancement of electrodes and proton exchange membrane in microbial fuel cell

Sirajudeen

Annuar

2021

JSCS

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Practical application of microbial fuel cell (MFC), a sustainable energy device, is hampered by low power output. Its principal components i.e. anode, cathode and proton exchange membrane (PEM) are the focus of enhancement and modification in terms of their functional design and material. The anode surface conduciveness as electron sink is crucial to the power output magnitude, while the cathode electrode should be reactive for efficient oxygen reduction at tri-phase junction. PEM is solely responsible for unidirectional proton flow concomitantly completing the electrical circuit. Polymeric nanocomposites as electrode modifier improved significantly anode/cathode/PEM functions thus overall MFC performance. The review highlights the progress made in polymer-based modifications to anode, cathode and PEM material and function between year 2014 to 2019. The effects to biocompatibility, surface area, internal resistance, electrochemical activities, environmental sustainability, and overall MFC performance are discussed.

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“…Karas et al [204] mentioned several methods to determine the IEC of polymer membranes. Acid-based titration [201,[205][206][207] and the glass pH method are well established [208]. The IEC can also be determined with ion chromatography [209] and methods on the basis of spectroscopy techniques [204], e.g., Fourier transform infrared (FTIR) spectroscopy [210] and NMR [202].…”

Section: Ion-exchange Capacitymentioning

confidence: 99%

“…The titration method is based on the exchange of H + -ions with Na + [201,207]. To achieve the ion exchange, the samples are soaked in NaCl for several hours.…”

Section: Ion-exchange Capacitymentioning

confidence: 99%

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

et al. 2021

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The large-scale adoption of fuel cells system for sustainable power generation will require the combined use of both multidimensional models and of dedicated testing techniques, in order to evolve the current technology beyond its present status. This requires an unprecedented understanding of concurrent and interacting fluid dynamics, material and electrochemical processes. In this review article, Polymer Electrolyte Membrane Fuel Cells (PEMFC) are analysed. In the first part, the most common approaches for multi-phase/multi-physics modelling are presented in their governing equations, inherent limitations and accurate materials characterisation for diffusion layers, membrane and catalyst layers. This provides a thorough overview of key aspects to be included in multidimensional CFD models. In the second part, advanced diagnostic techniques are surveyed, indicating testing practices to accurately characterise the cell operation. These can be used to validate models, complementing the conventional observation of the current–voltage curve with key operating parameters, thus defining a joint modelling/testing environment. The two sections complement each other in portraying a unified framework of interrelated physical/chemical processes, laying the foundation of a robust and complete understanding of PEMFC. This is needed to advance the current technology and to consciously use the ever-growing availability of computational resources in the next future.

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A nanocomposite membrane composed of incorporated nano-alumina within sulfonated PVDF-co-HFP/Nafion blend as separating barrier in a single chambered microbial fuel cell

Abstract: Nano-Al2O3 is incorporated within the blend of sulfonated PVDF-co-HFP/Nafion in varying molar ratios for the preparation of nanocomposite membranes.

Cited by 43 publications

References 47 publications

Effect of Pretreatment of Nanocomposite PES‐Fe₃O₄ Separator on Microbial Fuel Cells Performance

Effect of Pretreatment of Nanocomposite PES‐Fe₃O₄ Separator on Microbial Fuel Cells Performance

Polymeric nanocomposition for innovative functional enhancement of electrodes and proton exchange membrane in microbial fuel cell

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

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A nanocomposite membrane composed of incorporated nano-alumina within sulfonated PVDF-co-HFP/Nafion blend as separating barrier in a single chambered microbial fuel cell

Abstract: Nano-Al2O3 is incorporated within the blend of sulfonated PVDF-co-HFP/Nafion in varying molar ratios for the preparation of nanocomposite membranes.

Cited by 43 publications

References 47 publications

Effect of Pretreatment of Nanocomposite PES‐Fe3O4 Separator on Microbial Fuel Cells Performance

Effect of Pretreatment of Nanocomposite PES‐Fe3O4 Separator on Microbial Fuel Cells Performance

Polymeric nanocomposition for innovative functional enhancement of electrodes and proton exchange membrane in microbial fuel cell

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

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Product

Resources

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Effect of Pretreatment of Nanocomposite PES‐Fe₃O₄ Separator on Microbial Fuel Cells Performance

Effect of Pretreatment of Nanocomposite PES‐Fe₃O₄ Separator on Microbial Fuel Cells Performance