Quantitation of Sites

Quantitation of the number of acid sites present can be obtained from the integrated band areas for a particular vibrational band of the probe molecule and its molar absorption or molar extinction coefficient using the Lambert-Beer law as previous described in Section 4.5.2. In order to determine the molar extinction 

Probe molecule Proton affinity (PA k)mo - ) Kinetic diameter (A) Geometric shape 

Species Zeolite type Extinction coefficient (cm mmol Remarks ) Band position (cm- ) 

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