New SPEEK Membranes Modified with Bisphophonate Dopants [Resumo]

Teixeira, Fatima; Teixeira, António Paulo Silva; Rangel, Carmen M.

http://hdl.handle.net/10400.9/6103

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Authors

Teixeira, Fatima

Teixeira, António Paulo Silva

Rangel, Carmen M.

Abstract(s)

ABSTRACT: ustainable emerging energy technologies are pivotal to a decarbonized society that still continuously increases its energy demands. Fuel cells and eletrolyzers are part of these promising sustainable technologies, but they still depend on several factors, especially on their membranes. These are a key component acting as a separator, between their different materials and electrolytes of different devices' compartments, and as a selective ion-exchange barrier, controlling the ion flow and species permeability. Sulfonated poly(etheretherketone) (SPEEK) polymer is a versatile non-fluorinated alternative, as a low-cost and more environmentally friendly membrane, to the most commercially successful membrane based on the perfluorinated sulfonic Nafion®. Also, our previous studies showed that the incorporation of BPs dopants into the polymeric matrices, modifies the properties of the doped membranes, including their proton conduction and durability.

Keywords

Proton conductivity Fuel cells Nafion Bisphosphonic acids Sustainable technology

URI

http://hdl.handle.net/10400.9/6103

Citation

Teixeira, F., Teixeira, A. P. S. & Rangel, C. M. (2025). New SPEEK Membranes Modified with Bisphophonate Dopants. In: ISySyCat2025 – International Symposium on Synthesis and Catalysis, Coimbra, Portugal, 2-5 setembro 2025, Book of Abstract, paper P47, pp. 207