Sulfonated Polyimide Membranes Derived from a Novel Sulfonated Diamine with Pendant Benzenesulfonic Acid for Fuel Cells

Khurram Liaqat; Srosh Fazil; Wajid Rehman; Shaukat Saeed; Farid Menaa; Syed Asim Hussain Shah; Muhammad Nawaz; Walaa Naji Alharbi; Bouzid Menaa; Muhammad Farooq

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2023.18859

Published Article

LAPSE:2023.18859

Sulfonated Polyimide Membranes Derived from a Novel Sulfonated Diamine with Pendant Benzenesulfonic Acid for Fuel Cells

Khurram Liaqat, Srosh Fazil, Wajid Rehman, Shaukat Saeed, Farid Menaa, Syed Asim Hussain Shah, Muhammad Nawaz, Walaa Naji Alharbi, Bouzid Menaa, Muhammad Farooq

March 9, 2023

For improving the hydrolytic stability of sulfonated polyimides consisting of five membered anhydrides, novel sulfonated polyimides (NSPIs) were prepared via polymerization of 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA), with a novel diamine monomer with a pendant sulfonic acid group and 4,4-oxydianiline. Water uptake of this NSPI with an excellent film-forming ability was almost equal to that of Nafion® 117, while their ion exchange capacity (IEC) was 22% higher than Nafion® 117. The loss in weight decreased by 53% and loss in IEC decreased by 66% compared to that of Nafion® 117; both were used to quantitatively measure hydrolytic stability, and radical oxidative stability also increased by 75% when compared with Nafion® 117. Mechanically, this NSPI was superior, and its proton conductivity was higher than Nafion® 117 at elevated temperatures. All these improvements were due to the introduction of this pendant group. Taken together, we herein report a promising renewable energy source based on SPIs capable of displaying proton conductivity and enhanced hydrophilicity.

Record ID

LAPSE:2023.18859

Keywords

BTDA, Fuel Cells, Renewable and Sustainable Energy, sulfonated polyimide membranes

Subject

Energy Systems

Suggested Citation

Liaqat K, Fazil S, Rehman W, Saeed S, Menaa F, Shah SAH, Nawaz M, Alharbi WN, Menaa B, Farooq M. Sulfonated Polyimide Membranes Derived from a Novel Sulfonated Diamine with Pendant Benzenesulfonic Acid for Fuel Cells. (2023). LAPSE:2023.18859

Author Affiliations

Liaqat K: Department of Chemistry, University of Poonch Rawalakot, Rawalakot 12350, Pakistan
Fazil S: Department of Chemistry, University of Poonch Rawalakot, Rawalakot 12350, Pakistan
Rehman W: Department of Chemistry, Hazara University Mansehra, KPK, Mansehra 21120, Pakistan [ORCID]
Saeed S: Department of Chemistry, Pakistan Institute of Engineering and Applied Sciences, Islamabad 44000, Pakistan
Menaa F: Co-Pionneers of Spectro-Fluor™ (aka Carbone-Fluorine Spectroscopy), Fluorotronics-CIC, Inc., San Diego, CA 92037, USA [ORCID]
Shah SAH: Department of Physics and Chemistry, Universiti Tun Hussein Onn, Parit Raja 86400, Johor, Malaysia
Nawaz M: Department of Chemistry, Balochistan University of Information Technology, Engineering and Management Sciences (BUITEMS), Airport Road Baleli, Quetta 87100, Pakistan
Alharbi WN: Department of Chemistry, Science and Arts College, Rabigh Campus, King Abdulaziz University, Jeddah 80200, Saudi Arabia
Menaa B: Co-Pionneers of Spectro-Fluor™ (aka Carbone-Fluorine Spectroscopy), Fluorotronics-CIC, Inc., San Diego, CA 92037, USA
Farooq M: Department of Physics, Hazara University Mansehra, KPK, Mansehra 21120, Pakistan

Journal Name

Energies

Volume

14

Issue

19

First Page

6050

Year

2021

Publication Date

2021-09-23