A Review on the Fabrication of Electrospun Polymer Electrolyte Membrane for Direct Methanol Fuel Cell

Junoh, Hazlina; Jaafar, Juhana; Norddin, M. N. A. Mohd; Ismail, Ahmad Fauzi; Othman, Mohd Hafiz Dzarfan; Rahman, Mukhlis A.; Yusof, Norazah; Salleh, Wan Norharyati Wan; Ilbeygi, Hamid

doi:10.1155/2015/690965

Cited by 28 publications

(15 citation statements)

References 83 publications

(106 reference statements)

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“…Electrospinning (ES) is broadly applied to generate nanofibers from a wide range of materials, including polymers, metals, ceramics, and composites [1][2][3][4][5]. This technique [6][7][8][9][10] allows control of the fibers' morphology and diameter, which play important roles in their final applications. Solution properties such as precursor concentration, polymer molecular weight, viscosity, solvent characteristics as well as process conditions greatly affect the electrospun fibers [7,8,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties

et al. 2020

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Anion-conducting ionomer-based nanofibers mats are prepared by electrospinning (ES) technique. Depending on the relative humidity (RH) during the ES process (RHES), ionomer nanofibers with different morphologies are obtained. The effect of relative humidity on the ionomer nanofibers morphology, ionic conductivity, and water uptake (WU) is studied. A branching effect in the ES fibers found to occur mostly at RHES < 30% is discussed. The anion conductivity and WU of the ionomer electrospun mats prepared at the lowest RHES are found to be higher than in those prepared at higher RHES. This effect can be ascribed to the large diameter of the ionomer fibers, which have a higher WU. Understanding the effect of RH during the ES process on ionomer-based fibers’ properties is critical for the preparation of electrospun fiber mats for specific applications, such as electrochemical devices.

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Section: Introductionmentioning

confidence: 99%

Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties

et al. 2020

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“…For example, this method enables synthesis of fibers with large surface‐to‐volume ratio and mesoporous structure for various catalytic applications . In addition, ES is an attractive way to produce high‐surface‐area fibers with diameters in the nano–micrometer range and nonwoven nanofiber mats, with unique properties …”

Section: Introductionmentioning

confidence: 99%

Electrospun Ionomeric Fibers with Anion Conducting Properties

Mann‐Lahav

Halabi

Shter

et al. 2019

Adv Funct Materials

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Anion conductive nanofiber mats from FAA-3 ionomers are obtained by electrospinning. Depending on the solvent used in the precursor solution, nanofibers with either nonhollow cylindrical or flat ribbon-like cross-sections are prepared. The anion conductivity and water uptake of the ionomeric nanofiber mats are measured as a function of the relative humidity in the 10-90% range and compared to that of a solid membrane cast from the same ionomer. In addition, the anion conductivity of an isolated single fiber of the ionomer is measured for the first time. The anion conductivity of the electrospun single fiber is found to be higher than that of the mats, which is, in turn, one order of magnitude higher than that of the solid ionomer membrane. The higher conductivity of the mats relative to the solid membrane (in both inplane and through-plane directions) is found to be related to the variation in water uptake, which stems from the morphological distinctions. These results increase the understanding of the electrospinning process of ionomers, toward the development and design of new anion conductive ionomer fibers, useful for high performance electrochemical devices.

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“…With the emergence of electrospinning technique, polymeric fibers are becoming more and more common . These electrospun fibers are found to have large surface area to volume ratio, better mechanical strength and highly porous, which are useful in many applications, such as water purification, polymer electrolyte, and biomedical field …”

Section: Introductionmentioning

confidence: 99%

Design of polyurethane fibers: Relation between the spinning technique and the resulting fiber topology

Joo

Lee

Ang

et al. 2019

J of Applied Polymer Sci

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Properties or characteristics of fibers are affected by their topology. In fact, these topologies are found to have significant impacts in the functionalities of many applications. Hence, in this study, the relations between the spinning techniques and the topology of the resulting fibers are studied with the aim to provide a guideline for future reference where fibers with certain topology can be fabricated to suit specific applications. For this purpose, polyurethane is chosen to be the raw material to fabricate the fibers due to its versatility to be applied in various fields. The surface morphology, structures, and alignments of the fibers are studied. It is found that the polymer solution properties largely influence the mechanisms in the spinning process and can significantly affect the topology of the fibers. For instance, viscous solutions enable the spinning of coiled and smooth fibers, whereas conductive solutions encourage the splaying of the solution jet which results in the spinning of straight fibers.

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A Review on the Fabrication of Electrospun Polymer Electrolyte Membrane for Direct Methanol Fuel Cell

Cited by 28 publications

References 83 publications

Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties

Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties

Electrospun Ionomeric Fibers with Anion Conducting Properties

Design of polyurethane fibers: Relation between the spinning technique and the resulting fiber topology

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