Analysis of partially sulfonated low density polyethylene (LDPE) membranes as separators in microbial fuel cells

Kumar, Vikash; Rudra, Ruchira; Nandy, Abhishek; Hait, Subrata; Kundu, Patit Paban

doi:10.1039/c7ra02317k

Cited by 8 publications

(2 citation statements)

References 43 publications

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“…All these results suggest that DHN-70 can be used as alternate membrane material to Nafion 117 in an MFC application. In addition, the membranes prepared in this investigation showed better results in terms of power density as compared to many other hydrocarbon based membranes when incorporated in MFC. − However, it is always not possible to compare the membrane performance owing to different fuel cell configurations and their operating conditions. ,, …”

Section: Resultsmentioning

confidence: 86%

Novel Sulfonated Co-poly(ether imide)s Containing Trifluoromethyl, Fluorenyl and Hydroxyl Groups for Enhanced Proton Exchange Membrane Properties: Application in Microbial Fuel Cell

Kumar

Singh

Komber

et al. 2018

ACS Appl. Mater. Interfaces

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A hydroxyl group containing new cardo diamine monomer was synthesized, namely 9,9-bis (hydroxy- (4'-amino(3-trifluoromethyl)biphenyl-4-oxy)-phenyl)-9H-fluorene (mixture of isomers, HAPHPF). HAPHPF, along with a sulfonated diamine monomer, 4,4'-diaminostilbene-2,2'-disulfonic acid (DSDSA), was used to prepare a series of new sulfonated copolyimides by polycondensation with 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA). The degree of sulfonation (DS < 1) was adjusted by the feed ratio of DSDSA/HAPHPF and the copolymers were named as DHN-XX, where XX denotes the mole percentage of DSDSA (XX = 50, 60, and 70). The copolymers showed high molecular weights. The copolymer structure and composition were confirmed by FTIR and NMR techniques. Copolymer membranes were prepared through solution cast route by using dimethyl sulfoxide as a solvent. The membranes showed high thermal, mechanical, hydrolytic and peroxide radical stability, and low water uptake and low swelling ratios. Well-separated hydrophilic and hydrophobic phase morphology was observed in TEM and AFM images of the copolymer membranes and was further supported by the SAXS studies. The proton conductivity of the DHN-70 was as high as 97 mS cm at 80 °C and the value is significantly higher than that of the nonhydroxylated analogue. The membranes also showed superior microbial fuel cell (MFC) performance, similar like Nafion 117 under similar test conditions. The chemical oxygen demand removal values provide substantial evidence that the fabricated membranes can be utilized in bioelectrochemical systems.

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Section: Resultsmentioning

confidence: 86%

Novel Sulfonated Co-poly(ether imide)s Containing Trifluoromethyl, Fluorenyl and Hydroxyl Groups for Enhanced Proton Exchange Membrane Properties: Application in Microbial Fuel Cell

Kumar

Singh

Komber

et al. 2018

ACS Appl. Mater. Interfaces

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“…Besides, promising outcomes have been reported with the already commercialized CMI-7000 as an alternative to Nafion [114][115][116][117][118][119][120]. Furthermore, particular studies demonstrated the potential of PBI [77], SPPS [121], SLDPE [122], SPVDF [123], crosslinked and sulfonated PVA [124] for membrane manufacturing and application in BES. Moreover, blend membrane preparation has been investigated too, based on the mixture of polymers such as PVA-SA-PEG [125], SPEEK-PES [126], PES-SPES [127].…”

Section: Sufficient Geometrical Traits (Area Thickness Surface Morpmentioning

confidence: 99%

Architectural engineering of bioelectrochemical systems from the perspective of polymeric membrane separators: A comprehensive update on recent progress and future prospects

Bakonyi

Koók

Kumar

et al. 2018

Journal of Membrane Science

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Significant advances in the design of bioelectrochemical systems (BES) have promoted these applications to be seen as contemporary biotechnological platforms. However, notable issues in system architecture are still to be addressed and overcome, in particular concerning the membrane separators, which rely widely on polymers. These architectural components play a key-role in facilitating the transport of ions (i.e. protons) between the (compartments containing the) electrodes and therefore, their properties substantially influence the overall BES performance. This article aims presenting an up-to-date survey on the important accomplishments and promising outlooks with polymer-based membranes (both porous/non-porous, charged/uncharged) applied in BES (first and foremost microbial fuel cells, MFCs) that could drive this technology towards enhanced efficiency. Because of the interdisciplinary concept of BES, it attracts attention from scientists and engineers involved in environmental biotechnology, microbial electrochemistry and applied material sciences and as a result, this review paper would target the audience of these fields with particular interest on the progress with membrane separators fabricated with various polymeric materials.

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Separators and membranes

Rahimnejad¹

2023

Biological Fuel Cells

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Analysis of partially sulfonated low density polyethylene (LDPE) membranes as separators in microbial fuel cells

Abstract: Sulfonated low density polyethylenes (LDPEs) in varied molar ratios have been analyzed as separating barriers in microbial fuel cells (MFCs) for bioelectricity production.

Cited by 8 publications

References 43 publications

Novel Sulfonated Co-poly(ether imide)s Containing Trifluoromethyl, Fluorenyl and Hydroxyl Groups for Enhanced Proton Exchange Membrane Properties: Application in Microbial Fuel Cell

Novel Sulfonated Co-poly(ether imide)s Containing Trifluoromethyl, Fluorenyl and Hydroxyl Groups for Enhanced Proton Exchange Membrane Properties: Application in Microbial Fuel Cell

Architectural engineering of bioelectrochemical systems from the perspective of polymeric membrane separators: A comprehensive update on recent progress and future prospects

Separators and membranes

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