Development of flexible PVDF/PAMPS polyelectrolyte proton conductive membrane

Debbarma, Lima; Panwar, Varij; Khanduri, Priya; Panwar, Lokesh Singh

doi:10.1016/j.matpr.2020.02.373

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…Debbarma and collaborators [145] developed a flexible polyelectrolyte of Polyvinylidene fluoride (PVDF) and poly(2-acrylamido-2-methyl-1-propane sulfonic acid) (PAMPS) as a protonic conducting membrane. The authors showed that the conductivity of the composite increases (because of the increase in proton mobility) with increasing excitation frequency and the proportion of PAMPS in the final material, in the range of 20 Hz to 20 MHz.…”

Section: Energy-related Devicesmentioning

confidence: 99%

A Review on Low-Temperature Protonic Conductors: Principles and Chemical Sensing Applications

Mendes,

da Silva,

Araújo

et al. 2024

Chemosensors

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Proton conductors are ceramic materials with a crystalline or amorphous structure, which allow the passage of an electrical current through them exclusively by the movement of protons: H+. Recent developments in proton-conducting ceramics present considerable promise for obtaining economic and sustainable energy conversion and storage devices, electrolysis cells, gas purification, and sensing applications. So, proton-conducting ceramics that combine sensitivity, stability, and the ability to operate at low temperatures are particularly attractive. In this article, the authors start by presenting a brief historical resume of proton conductors and by exploring their properties, such as structure and microstructure, and their correlation with conductivity. A perspective regarding applications of these materials on low-temperature energy-related devices, electrochemical and moisture sensors, is presented. Finally, the authors’ efforts on the usage of a proton-conducting ceramic, polyantimonic acid (PAA), to develop humidity sensors, are looked into.

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Section: Energy-related Devicesmentioning

confidence: 99%

A Review on Low-Temperature Protonic Conductors: Principles and Chemical Sensing Applications

Mendes,

da Silva,

Araújo

et al. 2024

Chemosensors

View full text Add to dashboard Cite

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“…Additionally, because of progress in the development of environmental protection, much research is conducted with the aim of prolonging the operation time of machines in direct contact with the materials used in waste recycling, e.g., metal shredder blades, transportation containers, and so forth. [5]. Excessive wear of machine parts negatively affects the entire production and technological process.…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogen bonding and hydrophobic interactions can also influence the final structure of PECs [1,2]. PECs can be found in diverse applications such as drug delivery, biosensing, battery separators, fuel cells, and catalysis [3][4][5][6][7]. PDDA, a cationic polyelectrolyte, and PSS, an anionic polyelectrolyte, are often used to prepare PECs.…”

Section: Introductionmentioning

confidence: 99%

Enhanced catalytic activity of zeolitic imidazolate frameworks (ZIF-8) polyelectrolyte complex composites membranes by laser etching

Yu,

Kitiyanan,

Dubas

2024

Materials Science-Poland

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The effect of laser etching on the surface properties of composite polyelectrolyte complex (PEC) based membranes as mixed matrix membranes was studied. The PECs were prepared by the stoichiometric mixing of cationic PDDA (poly(diallyl dimethyl ammonium chloride)) and anionic PSS (poly(sodium 4-styrene sulfonate)) as polyelectrolytes with various contents of ZIF-8 as filler. Composite membranes usually display improved bulk properties depending on the nature of the filler, but the surface properties are often dictated by the matrix covering the surface. The PEC composite membranes were then subjected to laser etching, resulting in the enhanced exposure of embedded ZIF-8 particles within the PEC structure in an attempt to improve the surface properties of the composite membrane. The crystal structure, morphology, and distribution of zinc at the PECs surface, before and after laser etching, were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and energy-dispersive X-ray spectroscopy (EDS), respectively. In order to evaluate the improvement of the surface properties of the laser-etched membranes, a model experiment involving a catalytic reaction was chosen. The pristine and laser treated surfaces were tested for their catalytic activity for the transesterification of triglycerides present in soybean oil with methanol at a temperature of 150°C. Interestingly, the laser-etched PECs displayed substantially enhanced activity compared to the original composite PEC membranes as a result of surface erosion. These results could be interesting for the future development of composite membranes with improved surface properties where the filler needs to expose the surface of the membranes.

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