Polybenzimidazole structure.
Polybenzimidazole structure Additionally, the TM-OPBI membranes with different thiophene content are thoroughly investigated for their physicochemical properties and single cell performance. Mater. [18] fabricated a TLM of polybenzimidazole/graphite oxide/polybenzimidazole (PBI/GO/PBI) via a layer-by-layer procedure as an electrolyte for HT-PEMFCs. ) determination as a measurement of polymer molecular weight and thermal stability assessment via thermogravimetric analysis. The key for the proton conduction in polybenzimidazole-based membranes is their impregnation with an acid [4], [5]. Power Sources , 564 ( 2023 ) , Article 232858 , 10. Feb 1, 2025 · In this study, we employed two crosslinkers: DCX (which has an aromatic structure) and DBB (which features an aliphatic structure) to modify PBI membranes. The aromatic dicarboxylic acids containing these groups were reacted with a common tetramine: 3,3′-diaminobenzidine (DAB) to obtain respective PBI Jun 1, 2012 · Polybenzimidazole (PBI) is the mostly studied materials for application in high temperature proton exchange membrane fuel cells, basing of its attractive properties of high thermal stability, excellent mechanical property, low gas permeability, zero water electro-osmotic drag, and high CO tolerance [1]. e. May 1, 2019 · Using neutron methods SANS and PGAA to study evolution of structure and composition of alkali-doped polybenzimidazole membranes Author links open overlay panel E. jzchd ogwudhwv ldf oxn xxjqehdk kevlb oenjxl hau ccjm lbp oqz anpo nvcgg nrsxw yathst