用IR/TPD法测定氢型丝光沸石上氨的脱附活化能

The Measurement of Activation-Energies of Desorption of Ammonia Adsorbed on H-Mordenite by an Advanced IR-TPD Technique

通过IR/TPD的改进方法,测定了氨在氢型丝光沸石(HM)上的Bronsted酸位上的脱附活化能和相应的集居数。结果表明,在HM上有三种不同强度的Bronsted酸位,分别对应脱附活化能为63.6、49.8和35.4kJ/mol。

The activation-energies of desorption and population of Bronsted sites for ammonia adsorbed on H-Mordenite have been measured by an advanced IR-TPD technique. The results show that there are three different Bronsted sites corresponding to three different activation-energies of desorption, 63.6, 49.8, 35.4 kJ/mol and three different population, 0.35, 0.19, 0.10.