Chemical Engineering Journal, volume 466, pages 143151
Soluble polybenzimidazoles incorporating Tröger’s base for high-temperature proton exchange membrane fuel cells
1
2
State key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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3
School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China
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Publication type: Journal Article
Publication date: 2023-06-01
Journal:
Chemical Engineering Journal
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 15.1
ISSN: 13858947, 03009467
General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering
Environmental Chemistry
Abstract
In this work, a novel dicarboxylic acid (TB–COOH) containing Tröger’s base (TB) was synthesized, and newly TB-based polybenzimidazole (PBI) membranes were prepared as electrolytes for high-temperature proton exchange membrane (HT-PEM) fuel cells. The TB-based PBIs, upon treatment with triethylammonium salts, showed good processability. The as-prepared TB-based PBI membranes exhibit superior tensile strength above 126.6 MPa and high decomposition temperatures at 5% weight loss ranging from 374 °C to 411 °C. The residual weights of the TB-based PBI membranes remained at above 80% in Fenton’s reagent at 80 °C for 48 h. Notably, with extra nitrogen atoms in the TB-based PBIs, their phosphoric acid uptakes show obvious improvement over the corresponding sulfonated polybenzimidazole (sPBI) without TB units, achieving the highest proton conductivity (93.2 mS cm−1) at 160 °C, 2.3 times that of 41.2 mS cm−1 from the sulfonated PBI (sPBI) membrane. The highest peak power density of the H2/air fuel cell reached 225.5 mW cm−2 under non-humidity conditions at 160 °C, much higher than the value of the sPBI membrane. Based on their excellent comprehensive performance, incorporating TB into chain backbones optimized the PBI electrolytes for HT-PEM applications.
Top-30
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Citations by publishers
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25
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Elsevier
23 publications, 74.19%
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American Chemical Society (ACS)
4 publications, 12.9%
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Wiley
3 publications, 9.68%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 3.23%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Dai J. et al. Soluble polybenzimidazoles incorporating Tröger’s base for high-temperature proton exchange membrane fuel cells // Chemical Engineering Journal. 2023. Vol. 466. p. 143151.
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Dai J., Zhang Yu., Gong C., Wan Y., Zhuang Y. Soluble polybenzimidazoles incorporating Tröger’s base for high-temperature proton exchange membrane fuel cells // Chemical Engineering Journal. 2023. Vol. 466. p. 143151.
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TY - JOUR
DO - 10.1016/j.cej.2023.143151
UR - https://doi.org/10.1016/j.cej.2023.143151
TI - Soluble polybenzimidazoles incorporating Tröger’s base for high-temperature proton exchange membrane fuel cells
T2 - Chemical Engineering Journal
AU - Dai, Jiangdong
AU - Zhang, Yu
AU - Gong, Chunli
AU - Wan, Yinhua
AU - Zhuang, Yongbing
PY - 2023
DA - 2023/06/01 00:00:00
PB - Elsevier
SP - 143151
VL - 466
SN - 1385-8947
SN - 0300-9467
ER -
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@article{2023_Dai,
author = {Jiangdong Dai and Yu Zhang and Chunli Gong and Yinhua Wan and Yongbing Zhuang},
title = {Soluble polybenzimidazoles incorporating Tröger’s base for high-temperature proton exchange membrane fuel cells},
journal = {Chemical Engineering Journal},
year = {2023},
volume = {466},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016/j.cej.2023.143151},
pages = {143151},
doi = {10.1016/j.cej.2023.143151}
}