Abstract
The interaction of quinoline with the surface of Nafion-H and Nafion-H (13 wt%)/silica gel composites, silica gel itself, HY zeolite, dealuminated or not, and two types of alumina is studied by laser-induced fluorescence. Strong Brønsted acid sites interact with quinoline to form the quinolinum, that ion being revealed by a band peaking at 390 nm. When Lewis acid sites are present, a complex formed between these sites and quinoline is observed. A dimeric species and the diffusion of the adsorbates on the surface of the Nafion-H polymer are discussed.
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Lassoued, A., Deson, J., Lalo, C. et al. Laser-Induced Fluorescence of Base Adsorbed on Surface Sites in Solid Catalysts. Journal of Fluorescence 10, 261 (2000). https://doi.org/10.1023/A:1009449127193
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DOI: https://doi.org/10.1023/A:1009449127193