Sulfonated poly(arylene ether sulfone ketone) multiblock copolymers with highly sulfonated block. Fuel cell performance

Byungchan Bae; Takeshi Yoda; Kenji Miyatake; Makoto Uchida; Hiroyuki Uchida; Masahiro Watanabe

doi:10.1021/jp1052908

Sulfonated poly(arylene ether sulfone ketone) multiblock copolymers with highly sulfonated block. Fuel cell performance

Byungchan Bae, Takeshi Yoda, Kenji Miyatake^*, Makoto Uchida, Hiroyuki Uchida, Masahiro Watanabe

^*Corresponding author for this work

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

42 Citations (Scopus)

Abstract

Poly(arylene ether sulfone ketone) (SPESK) multiblock copolymers having highly sulfonated hydrophilic blocks were synthesized and the fuel cell performance with the copolymers was investigated. A membrane electrode assembly (MEA) using an SPESK ionomer with an ion exchange capacity of 1.8 mequiv g ^-1 as membrane and Nafion as the electrode binder showed comparable fuel cell performance and ohmic resistance to that using a Nafion NRE 211 membrane at 80 °C and 30% relative humidity (RH). A Nafion-free, all-SPESK MEA using SPESK as both the membrane and the binder was operable at 100 °C and 50% RH. The fuel cell performance was limited not only by the proton conductivity of the SPESK membrane but also by the low water flux through the membrane and specific adsorption of the ionomer on the platinum catalyst.

Original language	English
Pages (from-to)	10481-10487
Number of pages	7
Journal	Journal of Physical Chemistry B
Volume	114
Issue number	32
DOIs	https://doi.org/10.1021/jp1052908
Publication status	Published - 2010 Aug 19
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Sulfonated poly(arylene ether sulfone ketone) multiblock copolymers with highly sulfonated block. Fuel cell performance",

abstract = "Poly(arylene ether sulfone ketone) (SPESK) multiblock copolymers having highly sulfonated hydrophilic blocks were synthesized and the fuel cell performance with the copolymers was investigated. A membrane electrode assembly (MEA) using an SPESK ionomer with an ion exchange capacity of 1.8 mequiv g -1 as membrane and Nafion as the electrode binder showed comparable fuel cell performance and ohmic resistance to that using a Nafion NRE 211 membrane at 80 °C and 30% relative humidity (RH). A Nafion-free, all-SPESK MEA using SPESK as both the membrane and the binder was operable at 100 °C and 50% RH. The fuel cell performance was limited not only by the proton conductivity of the SPESK membrane but also by the low water flux through the membrane and specific adsorption of the ionomer on the platinum catalyst.",

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AU - Bae, Byungchan

AU - Yoda, Takeshi

AU - Miyatake, Kenji

AU - Uchida, Makoto

AU - Uchida, Hiroyuki

AU - Watanabe, Masahiro

PY - 2010/8/19

Y1 - 2010/8/19

N2 - Poly(arylene ether sulfone ketone) (SPESK) multiblock copolymers having highly sulfonated hydrophilic blocks were synthesized and the fuel cell performance with the copolymers was investigated. A membrane electrode assembly (MEA) using an SPESK ionomer with an ion exchange capacity of 1.8 mequiv g -1 as membrane and Nafion as the electrode binder showed comparable fuel cell performance and ohmic resistance to that using a Nafion NRE 211 membrane at 80 °C and 30% relative humidity (RH). A Nafion-free, all-SPESK MEA using SPESK as both the membrane and the binder was operable at 100 °C and 50% RH. The fuel cell performance was limited not only by the proton conductivity of the SPESK membrane but also by the low water flux through the membrane and specific adsorption of the ionomer on the platinum catalyst.

AB - Poly(arylene ether sulfone ketone) (SPESK) multiblock copolymers having highly sulfonated hydrophilic blocks were synthesized and the fuel cell performance with the copolymers was investigated. A membrane electrode assembly (MEA) using an SPESK ionomer with an ion exchange capacity of 1.8 mequiv g -1 as membrane and Nafion as the electrode binder showed comparable fuel cell performance and ohmic resistance to that using a Nafion NRE 211 membrane at 80 °C and 30% relative humidity (RH). A Nafion-free, all-SPESK MEA using SPESK as both the membrane and the binder was operable at 100 °C and 50% RH. The fuel cell performance was limited not only by the proton conductivity of the SPESK membrane but also by the low water flux through the membrane and specific adsorption of the ionomer on the platinum catalyst.

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Sulfonated poly(arylene ether sulfone ketone) multiblock copolymers with highly sulfonated block. Fuel cell performance

Abstract

ASJC Scopus subject areas

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