Polyethyleneimine-Based Semi-Interpenetrating Network Membranes for Fuel Cells

Loureiro, Felipe Augusto Moro; Pereira, Robson Pacheco; Rocco, Ana Maria

doi:10.1149/05801.1153ecst

Cited by 2 publications

(1 citation statement)

References 9 publications

(11 reference statements)

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“…Loureiro et al [22] synthesized a semi-interpenetrating polymer network (semi-IPN) through the reaction of epoxy resin with 4,4-diamino-diphenylsulfone and polyethylenimine (PEI). The membrane was acidified by two methods: (i) absorption of H 3 PO 4 from aqueous solution and (ii) sulfonation to form covalently bonded -SO 3 H. The conductivity value of the film doped with H 3 PO 4 at 20% concentration (about 0.08 S cm -1 , 80°C) was higher than that of the sulfonated samples.…”

Section: Introductionmentioning

confidence: 99%

Semi-interpenetrating Network Membrane from Polyethyleneimine-Epoxy Resin and Polybenzimidazole for HT-PEM Fuel Cells

Meng

Huang

Han

et al. 2020

Advances in Polymer Technology

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In the present work, a semi-interpenetrating network (semi-IPN) high-temperature proton exchange membrane based on polyethyleneimine (PEI), epoxy resin (ER), and polybenzimidazole (PBI) was prepared and characterized, aiming at their future application in fuel cell devices. The physical properties of the semi-IPN membrane are characterized by thermogravimetric analysis (TGA) and tensile strength test. The results indicate that the as-prepared PEI-ER/PBI semi-IPN membranes possess excellent thermal stability and mechanical strength. After phosphoric acid (PA) doping treatment, the semi-IPN membranes show high proton conductivities. PA doping level and volume swelling ratio as well as proton conductivities of the semi-IPN membranes are found to be positively related to the PEI content. High proton conductivities of 3.9 ∽ 7.8 × 10 − 2 S c m − 1 are achieved at 160°C for these PA-doped PEI-ER/PBI series membranes. H2/O2 fuel cell assembled with PA-doped PEI-ER(1 : 2)/PBI membrane delivered a peak power density of 170 mW cm-2 at 160°C under anhydrous conditions.

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Section: Introductionmentioning

confidence: 99%