Phosphoric acid-doped polybenzimidazole with a leaf-like three-layer porous structure as a high-temperature proton exchange membrane for fuel cells

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 9; no. 46; pp. 26345 - 26353
• Main Authors: Wang, Peng, Peng, Jinwu, Yin, Bibo, Fu, Xianzhu, Wang, Lei, Luo, Jing-Li, Peng, Xiaojun
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 30.11.2021
• Subjects: Crosslinking; durability; electric potential difference; Fuel cells; Fuel technology; High temperature; Leaves; Mechanical properties; Membranes; Phosphoric acid; Polybenzimidazoles; Proton exchange membrane fuel cells; Protons

Porous polybenzimidazole (PBI) membranes with a high ability to store phosphoric acid (PA) and transfer protons are promising materials as high-temperature proton exchange membranes (HT-PEMs) for fuel cell applications. However, porous PA-doped PBI membranes show poor mechanical properties due to po...