Journal of Membrane Science, volume 641, pages 119884

New high-performance bulky N-heterocyclic group functionalized poly(terphenyl piperidinium) membranes for HT-PEMFC applications

Yaping Jin 1
Ting Wang 1
Xuefu Che 1
Jianhao Dong 1
Ruihong Liu 1
Jingshuai Yang 1
Publication typeJournal Article
Publication date2022-01-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN03767388
Biochemistry
Physical and Theoretical Chemistry
General Materials Science
Filtration and Separation
Abstract
The development of high-performance high temperature proton exchange membranes (HT-PEMs) is a huge challenge that impedes the application of HT-PEM fuel cell (HT-PEMFC). Herein, novel bulky basic group grafted ether-free poly(terphenyl piperidinium) membranes are proposed for HT-PEMFC. Through a simple one-step polymerization, the poly(terphenyl piperidine) (PTP) polymer is synthesized. In order to improve the phosphoric acid (PA) uptake and solubility of PTP in organic solvents, both benzimidazole and pyridine side chains are functionalized into the PTP backbone. Comparing with methyl and methylene pyridine grafted PTP membranes (PTP-Me and PTP-Py), the methylene benzimidazole side chain grafted membrane (PTP-BeIm) exhibits an excellent PA doping content of 215 wt% and a high conductivity of 0.088 S cm −1 at 180 °C under anhydrous condition. The H 2 –O 2 fuel cell based on PTP-41%BeIm/215%PA displays a high peak power density of around 1 W cm −2 at 180 °C without any backpressure, which is about 1.5 times higher than that of PBI/342 wt%PA based cell. Thus, this work develops a facile and low-cost approach on the preparation of high-performance HT-PEMs. Novel bulky basic group grafted poly(terphenyl piperidinium) membranes with superior performance are proposed for HT-PEMFCs. • Bulky basic groups grafted ether-free poly(terphenyl piperidinium) membranes are developed for HT-PEMFC. • Membranes exhibit excellent PA uptake, high conductivity and modest tensile strength simultaneously. • The cell with PTP-41%BeIm/215%PA has a high power density of around 1 W cm-2 at 180 °C without backpressure.

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Jin Y. et al. New high-performance bulky N-heterocyclic group functionalized poly(terphenyl piperidinium) membranes for HT-PEMFC applications // Journal of Membrane Science. 2022. Vol. 641. p. 119884.
GOST all authors (up to 50) Copy
Jin Y., Wang T., Che X., Dong J., Liu R., Yang J. New high-performance bulky N-heterocyclic group functionalized poly(terphenyl piperidinium) membranes for HT-PEMFC applications // Journal of Membrane Science. 2022. Vol. 641. p. 119884.
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RIS Copy
TY - JOUR
DO - 10.1016/j.memsci.2021.119884
UR - https://doi.org/10.1016/j.memsci.2021.119884
TI - New high-performance bulky N-heterocyclic group functionalized poly(terphenyl piperidinium) membranes for HT-PEMFC applications
T2 - Journal of Membrane Science
AU - Jin, Yaping
AU - Wang, Ting
AU - Che, Xuefu
AU - Dong, Jianhao
AU - Liu, Ruihong
AU - Yang, Jingshuai
PY - 2022
DA - 2022/01/01 00:00:00
PB - Elsevier
SP - 119884
VL - 641
SN - 0376-7388
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Jin,
author = {Yaping Jin and Ting Wang and Xuefu Che and Jianhao Dong and Ruihong Liu and Jingshuai Yang},
title = {New high-performance bulky N-heterocyclic group functionalized poly(terphenyl piperidinium) membranes for HT-PEMFC applications},
journal = {Journal of Membrane Science},
year = {2022},
volume = {641},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/j.memsci.2021.119884},
pages = {119884},
doi = {10.1016/j.memsci.2021.119884}
}
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