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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。
By means of IR / TPD, the activation energies of desorption of Bronsted acid sites on HM and the corresponding population numbers were determined. The results showed that there are three different Bronsted acid sites on HM, corresponding to 63.6, 49.8 and 35.4 kJ / mol respectively.