Browsing by Author "Peeters, G."

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    Sorption Behaviour of Silanated H-Mordenite
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1978, 74 (07), 1978) Barrer, R. M.; Vansant, E. F.; Peeters, G.
    The changes in the sorption behaviour of H-mordenite resulting from the primary chemisorption of SiH4, secondary reactions and oxidation of chemisorbed SiHx with H2O have been investigated, using O2, N2 and CO as sorbates at 0 and –196°C and at different stages in the treatment of the sorbent. The modified mordenite was much less open and while sorption equilibrium could be established at 0°C this equilibrium was not approached at –196°C. The wide-pore parent H-mordenite was converted to a narrow-pore molecular sieve within which migration, even of small sorbate molecules, involved activated diffusion. Sorption of N2 at –196°C in H-mordenites at various stages of silanation showed that the primary chemisorption caused a big restriction in the channels, and that the oxidation stage with H2O followed by outgassing at 360°C made the restrictions even more complete. Non-oxidative secondary reactions were less important.