Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications

W. Jang, S. Choi, S. Lee, S. Park, J. Seo, Y. Shul, H. Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A benzimidazole pendant diamine, 5-(1H-benzoimidazol-2-yl)-benzene-1-3- diamine, was synthesized from 2-(3,5-dinitrophenyl)-1H-benzoimidazole. Here the dinitro compound was prepared from 3,5-dinitrobenzoyl chloride and 1,2-phenylene diamine. The benzimidazole pendant diamine was used to synthesis polyimide with pendant benzimidazole groups. These pendant benzimidazole groups present in polyimide main chain were used to dope phosphoric acid and phosphomolibdic acid thereby proton conducting polyelectrolyte membranes were prepared from them. The effect of changing concentration of phosphoric acid and phosphomolibdic acid on the properties of the membranes was studied. It was found that doping of phosphoric acid increased the conductivity at 30% R. H. and further addition of phosphomolibdic acid further increased the conductivity, which can be a promising applicable candidate for the high temperature operation and low humidity required fuel cell.

Original languageEnglish
Title of host publicationECS Transactions - 30th Fuel Cell Seminar
Pages17-26
Number of pages10
Edition1
DOIs
Publication statusPublished - 2007 Dec 1
Event30th Fuel Cell Seminar - Honolulu, HI, United States
Duration: 2006 Nov 132006 Nov 17

Publication series

NameECS Transactions
Number1
Volume5
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other30th Fuel Cell Seminar
CountryUnited States
CityHonolulu, HI
Period06/11/1306/11/17

Fingerprint

Phosphoric acid
Polyimides
Fuel cells
Electrolytes
Membranes
Acids
High temperature operations
Polyelectrolytes
Benzene
Atmospheric humidity
Protons
Doping (additives)

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Jang, W., Choi, S., Lee, S., Park, S., Seo, J., Shul, Y., & Han, H. (2007). Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications. In ECS Transactions - 30th Fuel Cell Seminar (1 ed., pp. 17-26). (ECS Transactions; Vol. 5, No. 1). https://doi.org/10.1149/1.2728984
Jang, W. ; Choi, S. ; Lee, S. ; Park, S. ; Seo, J. ; Shul, Y. ; Han, H. / Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications. ECS Transactions - 30th Fuel Cell Seminar. 1. ed. 2007. pp. 17-26 (ECS Transactions; 1).
@inproceedings{505dce7c5d684a8d95de20f775f1e890,
title = "Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications",
abstract = "A benzimidazole pendant diamine, 5-(1H-benzoimidazol-2-yl)-benzene-1-3- diamine, was synthesized from 2-(3,5-dinitrophenyl)-1H-benzoimidazole. Here the dinitro compound was prepared from 3,5-dinitrobenzoyl chloride and 1,2-phenylene diamine. The benzimidazole pendant diamine was used to synthesis polyimide with pendant benzimidazole groups. These pendant benzimidazole groups present in polyimide main chain were used to dope phosphoric acid and phosphomolibdic acid thereby proton conducting polyelectrolyte membranes were prepared from them. The effect of changing concentration of phosphoric acid and phosphomolibdic acid on the properties of the membranes was studied. It was found that doping of phosphoric acid increased the conductivity at 30{\%} R. H. and further addition of phosphomolibdic acid further increased the conductivity, which can be a promising applicable candidate for the high temperature operation and low humidity required fuel cell.",
author = "W. Jang and S. Choi and S. Lee and S. Park and J. Seo and Y. Shul and H. Han",
year = "2007",
month = "12",
day = "1",
doi = "10.1149/1.2728984",
language = "English",
isbn = "9781566775496",
series = "ECS Transactions",
number = "1",
pages = "17--26",
booktitle = "ECS Transactions - 30th Fuel Cell Seminar",
edition = "1",

}

Jang, W, Choi, S, Lee, S, Park, S, Seo, J, Shul, Y & Han, H 2007, Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications. in ECS Transactions - 30th Fuel Cell Seminar. 1 edn, ECS Transactions, no. 1, vol. 5, pp. 17-26, 30th Fuel Cell Seminar, Honolulu, HI, United States, 06/11/13. https://doi.org/10.1149/1.2728984

Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications. / Jang, W.; Choi, S.; Lee, S.; Park, S.; Seo, J.; Shul, Y.; Han, H.

ECS Transactions - 30th Fuel Cell Seminar. 1. ed. 2007. p. 17-26 (ECS Transactions; Vol. 5, No. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications

AU - Jang, W.

AU - Choi, S.

AU - Lee, S.

AU - Park, S.

AU - Seo, J.

AU - Shul, Y.

AU - Han, H.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - A benzimidazole pendant diamine, 5-(1H-benzoimidazol-2-yl)-benzene-1-3- diamine, was synthesized from 2-(3,5-dinitrophenyl)-1H-benzoimidazole. Here the dinitro compound was prepared from 3,5-dinitrobenzoyl chloride and 1,2-phenylene diamine. The benzimidazole pendant diamine was used to synthesis polyimide with pendant benzimidazole groups. These pendant benzimidazole groups present in polyimide main chain were used to dope phosphoric acid and phosphomolibdic acid thereby proton conducting polyelectrolyte membranes were prepared from them. The effect of changing concentration of phosphoric acid and phosphomolibdic acid on the properties of the membranes was studied. It was found that doping of phosphoric acid increased the conductivity at 30% R. H. and further addition of phosphomolibdic acid further increased the conductivity, which can be a promising applicable candidate for the high temperature operation and low humidity required fuel cell.

AB - A benzimidazole pendant diamine, 5-(1H-benzoimidazol-2-yl)-benzene-1-3- diamine, was synthesized from 2-(3,5-dinitrophenyl)-1H-benzoimidazole. Here the dinitro compound was prepared from 3,5-dinitrobenzoyl chloride and 1,2-phenylene diamine. The benzimidazole pendant diamine was used to synthesis polyimide with pendant benzimidazole groups. These pendant benzimidazole groups present in polyimide main chain were used to dope phosphoric acid and phosphomolibdic acid thereby proton conducting polyelectrolyte membranes were prepared from them. The effect of changing concentration of phosphoric acid and phosphomolibdic acid on the properties of the membranes was studied. It was found that doping of phosphoric acid increased the conductivity at 30% R. H. and further addition of phosphomolibdic acid further increased the conductivity, which can be a promising applicable candidate for the high temperature operation and low humidity required fuel cell.

UR - http://www.scopus.com/inward/record.url?scp=45149133724&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=45149133724&partnerID=8YFLogxK

U2 - 10.1149/1.2728984

DO - 10.1149/1.2728984

M3 - Conference contribution

AN - SCOPUS:45149133724

SN - 9781566775496

T3 - ECS Transactions

SP - 17

EP - 26

BT - ECS Transactions - 30th Fuel Cell Seminar

ER -

Jang W, Choi S, Lee S, Park S, Seo J, Shul Y et al. Acid-doped polyimide electrolyte membranes with pendant benzimidazole groups for fuel cell applications. In ECS Transactions - 30th Fuel Cell Seminar. 1 ed. 2007. p. 17-26. (ECS Transactions; 1). https://doi.org/10.1149/1.2728984