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Bibtex

@article{9c80834202c34c6cb8949639193c5511,
title = "Crosslinking of polybenzimidazolemembranes by divinylsulfone post-treatment for high-temperature proton exchange membrane fuel cell applications",
keywords = "Crosslinking, Proton exchangemembranes, Fuel cells, Polybenzimidazole, Divinylsulfone",
publisher = "John/Wiley & Sons Ltd.",
author = "David Aili and Qingfeng Li and Erik Christensen and Jensen, {Jens Oluf} and Niels Bjerrum",
year = "2011",
doi = "10.1002/pi.3063",
volume = "60",
number = "8",
pages = "1201--1207",
journal = "Polymer International",
issn = "0959-8103",

}

RIS

TY - JOUR

T1 - Crosslinking of polybenzimidazolemembranes by divinylsulfone post-treatment for high-temperature proton exchange membrane fuel cell applications

A1 - Aili,David

A1 - Li,Qingfeng

A1 - Christensen,Erik

A1 - Jensen,Jens Oluf

A1 - Bjerrum,Niels

AU - Aili,David

AU - Li,Qingfeng

AU - Christensen,Erik

AU - Jensen,Jens Oluf

AU - Bjerrum,Niels

PB - John/Wiley & Sons Ltd.

PY - 2011

Y1 - 2011

N2 - Phosphoric acid-doped polybenzimidazole (PBI) has been suggested as a promising electrolyte for proton exchangemembrane fuel cells operating at temperatures up to 200 ◦C. This paper describes the development of a crosslinking procedure for PBI membranes by post-treatment with divinylsulfone. The crosslinking chemistry was studied and optimized on a low-molecularweight model system and the results were used to optimize the crosslinking conditions of PBI membranes. The crosslinked membraneswere characterized with respect to chemical and physiochemical properties, showing improved mechanical strength and oxidative stability compared with their linear analogues. Fuel cell tests were further conducted in order to demonstrate the feasibility of the crosslinked membranes.

AB - Phosphoric acid-doped polybenzimidazole (PBI) has been suggested as a promising electrolyte for proton exchangemembrane fuel cells operating at temperatures up to 200 ◦C. This paper describes the development of a crosslinking procedure for PBI membranes by post-treatment with divinylsulfone. The crosslinking chemistry was studied and optimized on a low-molecularweight model system and the results were used to optimize the crosslinking conditions of PBI membranes. The crosslinked membraneswere characterized with respect to chemical and physiochemical properties, showing improved mechanical strength and oxidative stability compared with their linear analogues. Fuel cell tests were further conducted in order to demonstrate the feasibility of the crosslinked membranes.

KW - Crosslinking

KW - Proton exchangemembranes

KW - Fuel cells

KW - Polybenzimidazole

KW - Divinylsulfone

U2 - 10.1002/pi.3063

DO - 10.1002/pi.3063

JO - Polymer International

JF - Polymer International

SN - 0959-8103

IS - 8

VL - 60

SP - 1201

EP - 1207

ER -