Preparation and properties of epoxy-cross-linked porous polybenzimidazole for high temperature proton exchange membrane fuel cells

Shuang Wang, Chengji Zhao, Wenjia Ma, Gang Zhang, Zhongguo Liu, Jing Ni, Mingyu Li, Na Zhang, Hui Na

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

A new approach has been proposed to obtain high-temperature proton exchange membranes based on novel cross-linked porous polybenzimidazole (PBI). The cross-linked porous PBI membranes (CpPBI) were prepared by leaching out a low-molecular-weight compound dibutyl phthalate and mixing 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin as a cross-linker. The porous PBI membranes (pPBI) were also prepared for comparison. Compared with pPBI membranes, the mechanical properties and the chemical stability of CpPBI membranes were significantly improved. Both the uncross-linked and cross-linked membranes were doped with phosphoric acid, which may be used as proton exchange membranes for high temperature fuel cell. The doping level of all the pPBI membranes was higher than that of pristine PBI, thus leading to a higher proton conductivity. Especially the CpPBI-10 (with a cross-linker content of 10wt.% and a porogen content of 50wt.%) had a relative high proton conductivity of 0.046Scm -1 at 200°C, which is higher than some of the known porous PBI membranes measured under similar conditions. All the remarkable results of the epoxy-cross-linked porous PBI membranes indicated that the CpPBI membranes could be a suitable candidate for high temperature proton exchange membrane fuel cell (HT-PEMFC) applications.

Original languageEnglish (US)
Pages (from-to)54-63
Number of pages10
JournalJournal of Membrane Science
Volume411-412
DOIs
StatePublished - Sep 1 2012

Fingerprint

polybenzimidazole
Proton exchange membrane fuel cells (PEMFC)
fuel cells
Protons
Cell Membrane
membranes
Membranes
preparation
Temperature
protons
Proton conductivity
dibutyl compounds
Ion exchange
Dibutyl Phthalate
Epoxy Resins
conductivity

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

Wang, Shuang ; Zhao, Chengji ; Ma, Wenjia ; Zhang, Gang ; Liu, Zhongguo ; Ni, Jing ; Li, Mingyu ; Zhang, Na ; Na, Hui. / Preparation and properties of epoxy-cross-linked porous polybenzimidazole for high temperature proton exchange membrane fuel cells. In: Journal of Membrane Science. 2012 ; Vol. 411-412. pp. 54-63.
@article{beac44754a784defbc2f5d0cba501e74,
title = "Preparation and properties of epoxy-cross-linked porous polybenzimidazole for high temperature proton exchange membrane fuel cells",
abstract = "A new approach has been proposed to obtain high-temperature proton exchange membranes based on novel cross-linked porous polybenzimidazole (PBI). The cross-linked porous PBI membranes (CpPBI) were prepared by leaching out a low-molecular-weight compound dibutyl phthalate and mixing 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin as a cross-linker. The porous PBI membranes (pPBI) were also prepared for comparison. Compared with pPBI membranes, the mechanical properties and the chemical stability of CpPBI membranes were significantly improved. Both the uncross-linked and cross-linked membranes were doped with phosphoric acid, which may be used as proton exchange membranes for high temperature fuel cell. The doping level of all the pPBI membranes was higher than that of pristine PBI, thus leading to a higher proton conductivity. Especially the CpPBI-10 (with a cross-linker content of 10wt.{\%} and a porogen content of 50wt.{\%}) had a relative high proton conductivity of 0.046Scm -1 at 200°C, which is higher than some of the known porous PBI membranes measured under similar conditions. All the remarkable results of the epoxy-cross-linked porous PBI membranes indicated that the CpPBI membranes could be a suitable candidate for high temperature proton exchange membrane fuel cell (HT-PEMFC) applications.",
author = "Shuang Wang and Chengji Zhao and Wenjia Ma and Gang Zhang and Zhongguo Liu and Jing Ni and Mingyu Li and Na Zhang and Hui Na",
year = "2012",
month = "9",
day = "1",
doi = "10.1016/j.memsci.2012.04.011",
language = "English (US)",
volume = "411-412",
pages = "54--63",
journal = "Journal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",

}

Preparation and properties of epoxy-cross-linked porous polybenzimidazole for high temperature proton exchange membrane fuel cells. / Wang, Shuang; Zhao, Chengji; Ma, Wenjia; Zhang, Gang; Liu, Zhongguo; Ni, Jing; Li, Mingyu; Zhang, Na; Na, Hui.

In: Journal of Membrane Science, Vol. 411-412, 01.09.2012, p. 54-63.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preparation and properties of epoxy-cross-linked porous polybenzimidazole for high temperature proton exchange membrane fuel cells

AU - Wang, Shuang

AU - Zhao, Chengji

AU - Ma, Wenjia

AU - Zhang, Gang

AU - Liu, Zhongguo

AU - Ni, Jing

AU - Li, Mingyu

AU - Zhang, Na

AU - Na, Hui

PY - 2012/9/1

Y1 - 2012/9/1

N2 - A new approach has been proposed to obtain high-temperature proton exchange membranes based on novel cross-linked porous polybenzimidazole (PBI). The cross-linked porous PBI membranes (CpPBI) were prepared by leaching out a low-molecular-weight compound dibutyl phthalate and mixing 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin as a cross-linker. The porous PBI membranes (pPBI) were also prepared for comparison. Compared with pPBI membranes, the mechanical properties and the chemical stability of CpPBI membranes were significantly improved. Both the uncross-linked and cross-linked membranes were doped with phosphoric acid, which may be used as proton exchange membranes for high temperature fuel cell. The doping level of all the pPBI membranes was higher than that of pristine PBI, thus leading to a higher proton conductivity. Especially the CpPBI-10 (with a cross-linker content of 10wt.% and a porogen content of 50wt.%) had a relative high proton conductivity of 0.046Scm -1 at 200°C, which is higher than some of the known porous PBI membranes measured under similar conditions. All the remarkable results of the epoxy-cross-linked porous PBI membranes indicated that the CpPBI membranes could be a suitable candidate for high temperature proton exchange membrane fuel cell (HT-PEMFC) applications.

AB - A new approach has been proposed to obtain high-temperature proton exchange membranes based on novel cross-linked porous polybenzimidazole (PBI). The cross-linked porous PBI membranes (CpPBI) were prepared by leaching out a low-molecular-weight compound dibutyl phthalate and mixing 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin as a cross-linker. The porous PBI membranes (pPBI) were also prepared for comparison. Compared with pPBI membranes, the mechanical properties and the chemical stability of CpPBI membranes were significantly improved. Both the uncross-linked and cross-linked membranes were doped with phosphoric acid, which may be used as proton exchange membranes for high temperature fuel cell. The doping level of all the pPBI membranes was higher than that of pristine PBI, thus leading to a higher proton conductivity. Especially the CpPBI-10 (with a cross-linker content of 10wt.% and a porogen content of 50wt.%) had a relative high proton conductivity of 0.046Scm -1 at 200°C, which is higher than some of the known porous PBI membranes measured under similar conditions. All the remarkable results of the epoxy-cross-linked porous PBI membranes indicated that the CpPBI membranes could be a suitable candidate for high temperature proton exchange membrane fuel cell (HT-PEMFC) applications.

UR - http://www.scopus.com/inward/record.url?scp=84861526542&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861526542&partnerID=8YFLogxK

U2 - 10.1016/j.memsci.2012.04.011

DO - 10.1016/j.memsci.2012.04.011

M3 - Article

AN - SCOPUS:84861526542

VL - 411-412

SP - 54

EP - 63

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

ER -