Molecular engineering low-surface energy membranes by grafting perfluoro-<i>tert</i>-butoxy chains containing fluorous silica aerogels

Yim, Vicki Man-Wai; Lo, Angel S. W.; Deka, Bhaskar Jyoti; Guo, Jiaxin; Kharraz, Jehad A.; Horváth, István T.; An, Alicia Kyoungjin

doi:10.1039/d0gc00593b

Cited by 18 publications

(10 citation statements)

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“…The optimized electrodes were afterwards tested in H 2 and CH 4 fuel gases where they showed good thermal and redox cycling stability [ 211 ]. Besides this type of composite [ 212 , 213 ], other material systems as anodes for solid oxide fuel cells are, e.g., Ni-coated yttria-stabilized zirconia nanofiber mats [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 ...…”

Section: Fuel Cellsmentioning

confidence: 99%

“…Typical applications of electrospun nanofiber mats can be found in the areas of biotechnology and biomedicine [ 26 , 27 , 28 , 29 ], implant scaffolds [ 30 ], micropollutant elimination [ 31 ], nanoparticle delivery [ 32 ], oil/water separation [ 33 , 34 ], air and water filtration [ 35 , 36 , 37 , 38 ], and electrochemical cells [ 39 ]. This review gives an overview of the aforementioned kinds of electrochemical cells in which electrospun nanofiber mats are applied.…”

Section: Introductionmentioning

confidence: 99%

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Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review

Banitaba

Ehrmann

2021

Polymers

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Electrochemical devices convert chemical reactions into electrical energy or, vice versa, electricity into a chemical reaction. While batteries, fuel cells, supercapacitors, solar cells, and sensors belong to the galvanic cells based on the first reaction, electrolytic cells are based on the reversed process and used to decompose chemical compounds by electrolysis. Especially fuel cells, using an electrochemical reaction of hydrogen with an oxidizing agent to produce electricity, and electrolytic cells, e.g., used to split water into hydrogen and oxygen, are of high interest in the ongoing search for production and storage of renewable energies. This review sheds light on recent developments in the area of electrospun electrochemical devices, new materials, techniques, and applications. Starting with a brief introduction into electrospinning, recent research dealing with electrolytic cells, batteries, fuel cells, supercapacitors, electrochemical solar cells, and electrochemical sensors is presented. The paper concentrates on the advantages of electrospun nanofiber mats for these applications which are mostly based on their high specific surface area and the possibility to tailor morphology and material properties during the spinning and post-treatment processes. It is shown that several research areas dealing with electrospun parts of electrochemical devices have already reached a broad state-of-the-art, while other research areas have large space for future investigations.

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Section: Fuel Cellsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review

Banitaba

Ehrmann

2021

Polymers

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“…In membrane distillation, the membrane is susceptible to fouling and wetting issues, both of which can negatively influence the system's overall performance. Dissolving low surface tension compounds and organic components in feed water is the primary cause of wetting, resulting in decreased water output [36]. Therefore, numerous global scientific research has stressed the necessity for more selective membrane fabrication to overcome these constraints.…”

Section: Issues On Membrane Distillationmentioning

confidence: 99%

Recent Progress on Tailoring and Modification of Membranes for Membrane Distillation: A Review

Alias

Sufianasuri

2021

AMST

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Membrane distillation (MD) has gained the interest of many researchers since it is a promising method for the separation and purification process. Membrane distillation (MD) is a non-isothermal separation process in which differential vapor pressure between porous hydrophobic membrane surfaces acts as a driving factor. A hydrophobic membrane is used in the application of MD, which permits only the passage of vapor produced on the feed side through its pores to the permeate side. One of the most significant obstacles to the commercialisation of the MD method is a lack of appropriate membranes for the process. On the other hand, conventional hydrophobic membranes are subjected to rapid wetting and severe fouling, mainly when low surface tension compounds are present in saline water, resulting in decreased MD performance. In recent decades, MD membranes have received exceptional scientific interest, with substantial progress being made in the design and production of MD membranes appropriate for use in many applications. This review gives a comprehensive overview of recent research developments in the tailoring morphological structure of hydrophobic membranes, emphasising advancements in the fabrication and modification of membranes towards exhibiting high efficiency in the MD process. In addition, the critical morphology characteristics, mainly surface roughness, wettability, and water contact angle, are analysed. Finally, the challenges faced and future research direction is highlighted.

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“…Electrospun nanofibers have exceptional properties such as a huge area to volume ratio, porous structure and tunable functionality. These unique properties make electrospun materials very attractive for a broad range of applications such as textiles, filters, tissue engineering, drug delivery, wound healing, sensors, environmental remediation, aerogels, dye adsorption, packaging, energy storage and catalysis, among others [5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Green Electrospinning of Polymer Latexes: A Systematic Study of the Effect of Latex Properties on Fiber Morphology

et al. 2021

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Green electrospinning is a relatively new promising technology in which a polymer (latex) can be spun from an aqueous dispersion with the help of a template polymer. This method is a green, clean and safe technology that is able to spin hydrophobic polymers using water as an electrospinning medium. In this article, a systematic study that investigates the influence of the template polymer molar mass, the total solids content of the initial dispersion and the particle/template ratio is presented. Furthermore, the influence of the surfactant used to stabilize the polymer particles, the surface functionality of the polymer particles and the use of a bimodal particle size distribution on the final fiber morphology is studied for the first time. In green electrospinning, the viscosity of the initial complex blend depends on the amount and molar mass of the template polymer but also on the total solids content of the dispersion to be spun. Thus, both parameters must be carefully taken into account in order to fine-tune the final fiber morphology. Additionally, the particle packing and the surface chemistry of the polymer particles also play an important role in the obtained nanofibers quality.

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Molecular engineering low-surface energy membranes by grafting perfluoro-tert-butoxy chains containing fluorous silica aerogels

Abstract: Environmentally benign fluorous aerogels have been synthesized and electrospun on commercial PVDF membrane imparting superhydrophobicity and enabling the membrane undergo a stable, non-wetting 10-day DCMD operation with 0.1 mM SDS and 3.5% NaCl feed.

Cited by 18 publications

References 72 publications

Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review

Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review

Recent Progress on Tailoring and Modification of Membranes for Membrane Distillation: A Review

Green Electrospinning of Polymer Latexes: A Systematic Study of the Effect of Latex Properties on Fiber Morphology

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