Durability of novel sulfonated poly(arylene ether) membrane in PEFC operation

Makoto Aoki; Yohei Chikashige; Kenji Miyatake; Hiroyuki Uchida; Masahiro Watanabe

doi:10.1016/j.elecom.2006.06.028

Durability of novel sulfonated poly(arylene ether) membrane in PEFC operation

Makoto Aoki, Yohei Chikashige, Kenji Miyatake, Hiroyuki Uchida, Masahiro Watanabe^*

^*Corresponding author for this work

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

37 Citations (Scopus)

Abstract

A novel proton conducting polymer electrolyte membrane, poly(arylene ether) ionomer containing sulfofluorenyl groups (SPE-1), was subjected to long term fuel cell operation. High durability of the SPE-1 membrane was confirmed by single cell test at 80 °C and at a constant current density of 0.2 A/cm². Under 90% RH operation, superior hydrolytic stability of the SPE-1 membrane was demonstrated even after 5000 h with no noticeable degradations with respect to cell performances, ion exchange capacity, thickness, and molecular weight. Under 60% RH operation, some change in the molecular weight was observed after 2350 h presumably due to the oxidative degradation caused by the increased cross-over of reactant gases through the membrane.

Original language	English
Pages (from-to)	1412-1416
Number of pages	5
Journal	Electrochemistry Communications
Volume	8
Issue number	9
DOIs	https://doi.org/10.1016/j.elecom.2006.06.028
Publication status	Published - 2006 Sept
Externally published	Yes

Keywords

Durability
Fuel cell test
Ionomer
PEFC
Poly(arylene ether)

ASJC Scopus subject areas

Electrochemistry

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10.1016/j.elecom.2006.06.028

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title = "Durability of novel sulfonated poly(arylene ether) membrane in PEFC operation",

abstract = "A novel proton conducting polymer electrolyte membrane, poly(arylene ether) ionomer containing sulfofluorenyl groups (SPE-1), was subjected to long term fuel cell operation. High durability of the SPE-1 membrane was confirmed by single cell test at 80 °C and at a constant current density of 0.2 A/cm2. Under 90% RH operation, superior hydrolytic stability of the SPE-1 membrane was demonstrated even after 5000 h with no noticeable degradations with respect to cell performances, ion exchange capacity, thickness, and molecular weight. Under 60% RH operation, some change in the molecular weight was observed after 2350 h presumably due to the oxidative degradation caused by the increased cross-over of reactant gases through the membrane.",

keywords = "Durability, Fuel cell test, Ionomer, PEFC, Poly(arylene ether)",

author = "Makoto Aoki and Yohei Chikashige and Kenji Miyatake and Hiroyuki Uchida and Masahiro Watanabe",

note = "Funding Information: The authors thank Ms. Toshiko Gomyo for her contribution of the SEM observation. This work was partly supported by a Ministry of Education, Culture, Sports, Science and Technology, Japan, through the funds for a Grant-in-Aid for Scientific Research (18750167) and National Leading Project “New Material Developments for the Next Generation Fuel Cells”, and by New Energy and Industrial Development Organization through the Industrial Technology Research Grant Program (02B70007c).",

year = "2006",

month = sep,

doi = "10.1016/j.elecom.2006.06.028",

language = "English",

volume = "8",

pages = "1412--1416",

journal = "Electrochemistry Communications",

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AU - Aoki, Makoto

AU - Chikashige, Yohei

AU - Miyatake, Kenji

AU - Uchida, Hiroyuki

AU - Watanabe, Masahiro

N1 - Funding Information: The authors thank Ms. Toshiko Gomyo for her contribution of the SEM observation. This work was partly supported by a Ministry of Education, Culture, Sports, Science and Technology, Japan, through the funds for a Grant-in-Aid for Scientific Research (18750167) and National Leading Project “New Material Developments for the Next Generation Fuel Cells”, and by New Energy and Industrial Development Organization through the Industrial Technology Research Grant Program (02B70007c).

PY - 2006/9

Y1 - 2006/9

N2 - A novel proton conducting polymer electrolyte membrane, poly(arylene ether) ionomer containing sulfofluorenyl groups (SPE-1), was subjected to long term fuel cell operation. High durability of the SPE-1 membrane was confirmed by single cell test at 80 °C and at a constant current density of 0.2 A/cm2. Under 90% RH operation, superior hydrolytic stability of the SPE-1 membrane was demonstrated even after 5000 h with no noticeable degradations with respect to cell performances, ion exchange capacity, thickness, and molecular weight. Under 60% RH operation, some change in the molecular weight was observed after 2350 h presumably due to the oxidative degradation caused by the increased cross-over of reactant gases through the membrane.

AB - A novel proton conducting polymer electrolyte membrane, poly(arylene ether) ionomer containing sulfofluorenyl groups (SPE-1), was subjected to long term fuel cell operation. High durability of the SPE-1 membrane was confirmed by single cell test at 80 °C and at a constant current density of 0.2 A/cm2. Under 90% RH operation, superior hydrolytic stability of the SPE-1 membrane was demonstrated even after 5000 h with no noticeable degradations with respect to cell performances, ion exchange capacity, thickness, and molecular weight. Under 60% RH operation, some change in the molecular weight was observed after 2350 h presumably due to the oxidative degradation caused by the increased cross-over of reactant gases through the membrane.

KW - Durability

KW - Fuel cell test

KW - Ionomer

KW - PEFC

KW - Poly(arylene ether)

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SN - 1388-2481

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 9

ER -

Durability of novel sulfonated poly(arylene ether) membrane in PEFC operation

Abstract

Keywords

ASJC Scopus subject areas

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