Proton-conductive aromatic ionomers containing highly sulfonated blocks for high-temperature-operable fuel cells

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

doi:10.1002/anie.200905355

Proton-conductive aromatic ionomers containing highly sulfonated blocks for high-temperature-operable fuel cells

Byungchan Bae, Takeshi Yoda, Kenji Miyatake, Hiroyuki Uchida, Masahiro Watanabe

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

223 Citations (Scopus)

Abstract

"Chemical Equation Presented" Segregation is a key theme of this film: Poly(arylene ether sulfone ketone) multiblock membranes containing highly sulfonated hydrophilic blocks were prepared by postsulfonation. High local concentrations of sulfonic acid groups within the hydrophilic blocks enhanced the phase separation of the two block types (see picture), and the high interconnectivity of the rodlike hydrophilic aggregates led to high proton conductivity even at low humidity.

Original language	English
Pages (from-to)	317-320
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	49
Issue number	2
DOIs	https://doi.org/10.1002/anie.200905355
Publication status	Published - 2010 Jan 8
Externally published	Yes

Keywords

Block copolymers
Conducting materials
Fuel cells
Membranes
Sulfonation

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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author = "Byungchan Bae and Takeshi Yoda and Kenji Miyatake and Hiroyuki Uchida and Masahiro Watanabe",

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AU - Bae, Byungchan

AU - Yoda, Takeshi

AU - Miyatake, Kenji

AU - Uchida, Hiroyuki

AU - Watanabe, Masahiro

PY - 2010/1/8

Y1 - 2010/1/8

N2 - "Chemical Equation Presented" Segregation is a key theme of this film: Poly(arylene ether sulfone ketone) multiblock membranes containing highly sulfonated hydrophilic blocks were prepared by postsulfonation. High local concentrations of sulfonic acid groups within the hydrophilic blocks enhanced the phase separation of the two block types (see picture), and the high interconnectivity of the rodlike hydrophilic aggregates led to high proton conductivity even at low humidity.

AB - "Chemical Equation Presented" Segregation is a key theme of this film: Poly(arylene ether sulfone ketone) multiblock membranes containing highly sulfonated hydrophilic blocks were prepared by postsulfonation. High local concentrations of sulfonic acid groups within the hydrophilic blocks enhanced the phase separation of the two block types (see picture), and the high interconnectivity of the rodlike hydrophilic aggregates led to high proton conductivity even at low humidity.

KW - Block copolymers

KW - Conducting materials

KW - Fuel cells

KW - Membranes

KW - Sulfonation

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Proton-conductive aromatic ionomers containing highly sulfonated blocks for high-temperature-operable fuel cells

Abstract

Keywords

ASJC Scopus subject areas

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