Mechanically stable nanofibrous sPEEK/Aquivion® composite membranes for fuel cell applications

Boaretti, Carlo; Pasquini, Luca; Sood, Rakhi; Giancola, Stefano; Donnadio, Anna; Roso, Martina; Modesti, Michele; Cavaliere, Sara

doi:10.1016/j.memsci.2017.09.055

Cited by 84 publications

(36 citation statements)

References 48 publications

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“…The films were tested at a speed of 30 mm min −1 . The data were elaborated by the TestXpert V11.0 Master software (Boaretti et al, 2018). The Young's modulus (E) was calculated from the linear part of the stress-strain curve, between 0.2 and 0.6% elongation.…”

Section: Characterization Of Keratin and Keratin/nrs Hybrid Filmsmentioning

confidence: 99%

Effect of Chemically Engineered Au/Ag Nanorods on the Optical and Mechanical Properties of Keratin Based Films

et al. 2020

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Section: Characterization Of Keratin and Keratin/nrs Hybrid Filmsmentioning

confidence: 99%

Effect of Chemically Engineered Au/Ag Nanorods on the Optical and Mechanical Properties of Keratin Based Films

et al. 2020

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“…[48] The Young's modulus (E) was calculated from the linear part of the stress-strain curve, between 0.2% and 0.6% elongation. For that, the films were cut in rectangles of 5 mm width and length 5 cm and fixed on the grips of the device with a gap of 20 mm.…”

Section: Methodsmentioning

confidence: 99%

“…The films were tested at a speed of 30 mm min −1 . The data were elaborated by the TestXpert V11.0 Master software . The Young's modulus ( E ) was calculated from the linear part of the stress–strain curve, between 0.2% and 0.6% elongation.…”

Section: Methodsmentioning

confidence: 99%

Keratin Film as Natural and Eco‐Friendly Support for Organic Optoelectronic Devices

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Donnadio

et al. 2019

Advanced Sustainable Systems

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This work describes the preparation of a novel substrate based on keratin extracted from wool and its application as potential support for solution‐processed organic solar cells. Optically transparent, free‐standing, and resistant keratin films are successfully prepared, starting from water solution, and characterized in terms of morphology, structure, thermal and mechanical properties. The effect of solvents and thermal annealing is also investigated in order to mimic and evaluate the impact of the processing conditions used for devices fabrication. Thermally annealed keratin films exhibit enhanced optical transparency (>87%) in the visible region of the spectrum, a transition from α‐helix to β‐sheet and turn structures, improved thermal stability and Young's modulus. The good transparency, flatness, and resistance of as‐cast substrates allow the successful preparation of organic solar cells. Photovoltaic performances similar to those reported for other natural/biobased supports are achieved, confirming the potential of keratin film as an alternative and promising support material for eco‐friendly, fully printable, sustainable, and inexpensive optoelectronic devices.

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“…To reinforce those membranes, organic fillers can be included in the Aquivion matrix. Boaretti et al [216] included SPEEK reinforcement which led to an improvement in the mechanical strength but resulting in low proton conductivity. Another approach to reinforce proton exchange membrane is to physically separate the properties of mechanical strength and proton transport embedding a porous nanofibre web into the matrix.…”

Section: Composite Membranes For Electrolysersmentioning

confidence: 99%

Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies—A Review

et al. 2020

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Nafion membranes are still the dominating material used in the polymer electrolyte membrane (PEM) technologies. They are widely used in several applications thanks to their excellent properties: high proton conductivity and high chemical stability in both oxidation and reduction environment. However, they have several technical challenges: reactants permeability, which results in reduced performance, dependence on water content to perform preventing the operation at higher temperatures or low humidity levels, and chemical degradation. This paper reviews novel composite membranes that have been developed for PEM applications, including direct methanol fuel cells (DMFCs), hydrogen PEM fuel cells (PEMFCs), and water electrolysers (PEMWEs), aiming at overcoming the drawbacks of the commercial Nafion membranes. It provides a broad overview of the Nafion-based membranes, with organic and inorganic fillers, and non-fluorinated membranes available in the literature for which various main properties (proton conductivity, crossover, maximum power density, and thermal stability) are reported. The studies on composite membranes demonstrate that they are suitable for PEM applications and can potentially compete with Nafion membranes in terms of performance and lifetime.

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Mechanically stable nanofibrous sPEEK/Aquivion® composite membranes for fuel cell applications

Cited by 84 publications

References 48 publications

Effect of Chemically Engineered Au/Ag Nanorods on the Optical and Mechanical Properties of Keratin Based Films

Effect of Chemically Engineered Au/Ag Nanorods on the Optical and Mechanical Properties of Keratin Based Films

Keratin Film as Natural and Eco‐Friendly Support for Organic Optoelectronic Devices

Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies—A Review

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