Fluorinated Imidazoles as Proton Carriers for Water-Free Fuel Cell Membranes
Wei-Qiao Deng, Valeria Molinero, William A. Goddard III
2004J. Am. Chem. Soc., 126(48), 15644-1564572cited
Abstract
We propose an alternative new material (2,4,5-trifluoroimidazole impregnated Nafion) for use as a high-temperature, water-free membrane for proton-exchange membrane fuel cells. This material has been tested computationally using molecular dynamics and quantum mechanics techniques, leading to an estimated conductivity of ∼0.06 S/cm at 177 °C. This material overcomes the weakness of the imidazole-impregnated membranes, i.e., the poisoning of the Pt electrode. We find that 2,4,5-trifluoroimidazole binds weakly to platinum surfaces, so poisoning is not expected.
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Cite this publication
Deng, W., Molinero, V., & III, W. A. G. (2004). Fluorinated Imidazoles as Proton Carriers for Water-Free Fuel Cell Membranes. *J. Am. Chem. Soc.*, *126*(48), 15644-15645. https://doi.org/10.1021/ja046999y