SPEEK/polyimide blends for proton conductivemembranes

H. Maab; M. Schieda; W. Yave; S. Shishatskiy; S. P. Nunes

doi:10.1002/fuce.200800121

SPEEK/polyimide blends for proton conductivemembranes

H. Maab, M. Schieda, W. Yave, S. Shishatskiy, S. P. Nunes

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

A series of membranes, based on sulphonated poly(ether ether ketone) (SPEEK)/polyimide (PI) blends, was prepared at different casting conditions. They were characterised by SEM, FTIR, DMTA, DSC, TGA, water/methanol pervaporation and impedance spectroscopy. The membranes prepared at 130 °C from blends with 10, 20 and 30 wt.-% of PI are homogeneous, and the methanol permeabilities decreased from 28 × 10^-10 kg m s^-1 m^-2 (plain SPEEK) to 7.21,2.61 and 0.55 × 10^-10 kg m s^-1 m^-2, respectively. This corresponds to a 4- to 57-fold methanol crossover reduction. With this improvement, by the introduction of PI, the power density of SPEEK-based membranes in DMFC tests could be greatly improved.

Original language	English (US)
Pages (from-to)	401-409
Number of pages	9
Journal	Fuel Cells
Volume	9
Issue number	4
DOIs	https://doi.org/10.1002/fuce.200800121
State	Published - Aug 2009
Externally published	Yes

Keywords

DMFC
FTIR spectroscopy
Impedance spectroscopy
Polyimide
SPEEK

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/fuce.200800121

Cite this

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title = "SPEEK/polyimide blends for proton conductivemembranes",

abstract = "A series of membranes, based on sulphonated poly(ether ether ketone) (SPEEK)/polyimide (PI) blends, was prepared at different casting conditions. They were characterised by SEM, FTIR, DMTA, DSC, TGA, water/methanol pervaporation and impedance spectroscopy. The membranes prepared at 130 °C from blends with 10, 20 and 30 wt.-% of PI are homogeneous, and the methanol permeabilities decreased from 28 × 10-10 kg m s-1 m-2 (plain SPEEK) to 7.21,2.61 and 0.55 × 10-10 kg m s-1 m-2, respectively. This corresponds to a 4- to 57-fold methanol crossover reduction. With this improvement, by the introduction of PI, the power density of SPEEK-based membranes in DMFC tests could be greatly improved.",

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author = "H. Maab and M. Schieda and W. Yave and S. Shishatskiy and Nunes, {S. P.}",

year = "2009",

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doi = "10.1002/fuce.200800121",

language = "English (US)",

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T1 - SPEEK/polyimide blends for proton conductivemembranes

AU - Maab, H.

AU - Schieda, M.

AU - Yave, W.

AU - Shishatskiy, S.

AU - Nunes, S. P.

PY - 2009/8

Y1 - 2009/8

N2 - A series of membranes, based on sulphonated poly(ether ether ketone) (SPEEK)/polyimide (PI) blends, was prepared at different casting conditions. They were characterised by SEM, FTIR, DMTA, DSC, TGA, water/methanol pervaporation and impedance spectroscopy. The membranes prepared at 130 °C from blends with 10, 20 and 30 wt.-% of PI are homogeneous, and the methanol permeabilities decreased from 28 × 10-10 kg m s-1 m-2 (plain SPEEK) to 7.21,2.61 and 0.55 × 10-10 kg m s-1 m-2, respectively. This corresponds to a 4- to 57-fold methanol crossover reduction. With this improvement, by the introduction of PI, the power density of SPEEK-based membranes in DMFC tests could be greatly improved.

AB - A series of membranes, based on sulphonated poly(ether ether ketone) (SPEEK)/polyimide (PI) blends, was prepared at different casting conditions. They were characterised by SEM, FTIR, DMTA, DSC, TGA, water/methanol pervaporation and impedance spectroscopy. The membranes prepared at 130 °C from blends with 10, 20 and 30 wt.-% of PI are homogeneous, and the methanol permeabilities decreased from 28 × 10-10 kg m s-1 m-2 (plain SPEEK) to 7.21,2.61 and 0.55 × 10-10 kg m s-1 m-2, respectively. This corresponds to a 4- to 57-fold methanol crossover reduction. With this improvement, by the introduction of PI, the power density of SPEEK-based membranes in DMFC tests could be greatly improved.

KW - DMFC

KW - FTIR spectroscopy

KW - Impedance spectroscopy

KW - Polyimide

KW - SPEEK

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EP - 409

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JF - Fuel Cells

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SPEEK/polyimide blends for proton conductivemembranes

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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