Investigation into the influence of boron nitride addition on the properties of SPEEK/PBI based electrolyte membrane.
Saved in:
| Title: | Investigation into the influence of boron nitride addition on the properties of SPEEK/PBI based electrolyte membrane. |
|---|---|
| Authors: | Harameen, Huzaifa Mohammed Adam1 (AUTHOR) hoz2t96@yahoo.com, Akay, Ramiz Gultekin1 (AUTHOR) gultekin.akay@kocaeli.edu.tr |
| Source: | International Journal of Hydrogen Energy. Feb2024, Vol. 54, p189-199. 11p. |
| Subjects: | Boron nitride, Ionic conductivity, Proton conductivity, Potassium permanganate, Ion exchange (Chemistry), Electrolytes, Hydroxyl group |
| Abstract: | To overcome the limitation of SPEEK/PBI membrane, BN was introduced to the membrane in different percentages. Firstly, boron nitride was functionalized by introducing hydroxyl group using KMNO 4 , H 2 O 2 , as oxidation agents. At the same time SPEEK was prepared by sulfonating PEEK at 80 °C using sulfonic acid. Further, a SPEEK/PBI/BN blend was prepared by dissolving SPEEK/BN in DMCs and then mixed with PBI heated solution. The percentage of the BN were 10%, 15 and 20%. The prepared membranes were characterized, however, SPEEK/PBI/BN-10% showed the optimum physicochemical properties; in which the degree of sulfonating, ion exchange capacity, water uptake, tensile stress, ionic conductivity, and thermal stability were 80.53%, 2.18 meq.g−1, 6.13%,8.61 MPa, 245 mS/cm, and 316.6 °C. The results show that the addition of BN influenced the characteristics of the membrane remarkably in a positive way as the protonic conductivity increased remarkably from 170 mS/cm to 245 mS/cm. Moreover, there was a huge enhancement in the thermal stability and the ionic conductivity. • Among all the available nonperflurinated materials for electrolyte membranes, SPEEK and PBI seem to be the best option. • SPEEK membrane was modified with PBI and BN to enhance its thermomechanical and its protonic conductivity. • SPEEK/PBI/BN-10 showed the greatest properties, in which the ion exchange capacity was found 2.18meq.g−1. • On the other hand, Tensile stress, Water uptake, and Maximum temperature were 8.61 MPa, 316.6 °C, and 6.13% respectively. • The protonic conductivity enhanced remarkably from 170 mS/cm to 245 mS/cm. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
Be the first to leave a comment!
