Chemisorption is a powerful analytical method used to investigate the surface properties of solid materials, particularly catalysts. Unlike physisorption, which involves weak van der Waals interactions, chemisorption involves strong interactions such as covalent or ionic bonds. This interaction is highly specific, often irreversible, and only forms a monolayer. The interaction highly depends on the chemical nature of both of the surface and the adsorbate.
Chemisorption techniques are essential in the field of heterogeneous catalysis, where information such as number, nature, and strength of active sites on a catalyst surface is crucial for optimizing performance. Such information allows scientists to determine metal dispersion, and evaluate the adsorption strength, activity, and reactivity of a catalyst, which are the key parameters in catalyst design and evaluation.
Several chemisorption techniques have been extensively utilized to evaluate catalysts, including pulse chemisorption and temperature-programmed analyses such as reduction, oxidation, desorption, decomposition, and surface reactions. In this application note, pulse chemisorption technique will be applied to Micromeritics reference standard material to demonstrate its utility in catalyst characterization on the ChemiSorb Auto.
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Chemisorption is a powerful analytical method used to investigate the surface properties of solid materials, particularly catalysts. Unlike physisorption, which involves weak van der Waals interactions, chemisorption involves strong interactions such as covalent or ionic bonds. This interaction is highly specific, often irreversible, and only forms a monolayer. The interaction highly depends on the chemical nature of both of the surface and the adsorbate.
Chemisorption techniques are essential in the field of heterogeneous catalysis, where information such as number, nature, and strength of active sites on a catalyst surface is crucial for optimizing performance. Such information allows scientists to determine metal dispersion, and evaluate the adsorption strength, activity, and reactivity of a catalyst, which are the key parameters in catalyst design and evaluation.
Several chemisorption techniques have been extensively utilized to evaluate catalysts, including pulse chemisorption and temperature-programmed analyses such as reduction, oxidation, desorption, decomposition, and surface reactions. In this application note, pulse chemisorption technique will be applied to Micromeritics reference standard material to demonstrate its utility in catalyst characterization on the ChemiSorb Auto.
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