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Quantitative IR characterization of the acidity of various oxide catalysts

Abstract : The integrated molar absorption coefficients of the infrared bands characteristic of adsorbed lutidine (2,6-dimethylpyridine) were determined for the purpose of quantifying the acid sites of solid catalysts. The integrated molar absorption coefficients were measured for lutidine adsorbed through H-bonding, coordination to Lewis sites and protonation on Brønsted acid sites. The solids were chosen to present all possible bondings with lutidine and to cover a wide range of common types of catalysts or supports: silica, phosphated silica, HY zeolite, alumina, zirconia, WOx supported on zirconia and NbOx supported on zirconia
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https://hal-normandie-univ.archives-ouvertes.fr/hal-03379926
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Submitted on : Friday, October 15, 2021 - 11:48:34 AM
Last modification on : Wednesday, December 15, 2021 - 9:58:59 AM

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Thomas Onfroy, Guillaume Clet, Marwan Houalla. Quantitative IR characterization of the acidity of various oxide catalysts. Microporous and Mesoporous Materials, Elsevier, 2005, 82 (1-2), pp.99-104. ⟨10.1016/j.micromeso.2005.02.020⟩. ⟨hal-03379926⟩

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