Abstract
Upon adsorption of formaldehyde onto silicalite, hydrogen-bonded adducts are formed between the (slightly acidic) SiOH groups of the purely siliceous zeolite and formaldehyde, as seen by using both FTIR and 1H-NMR spectroscopies. These species then evolve to form polymerization products of the type –(CH2O) n –. On the contrary, when silicalite is contacted with trioxane hydrogen-bonded adducts are formed, but no polymerization ensues.
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Xamena, F.L.i., Areán, C.O., Spera, S. et al. Formaldehyde Oligomerization on Silicalite: An FTIR and NMR Study. Catalysis Letters 95, 51–55 (2004). https://doi.org/10.1023/B:CATL.0000023721.90964.e2
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DOI: https://doi.org/10.1023/B:CATL.0000023721.90964.e2