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用变温129Xe NMR研究了Xe在具有两套独立孔结构的新型沸石分子筛MCM-22中的吸附行为,结果表明:在较低吸附压时,Xe优先吸附在该分子筛的超笼里;随着吸附压力的增加,Xe也可以进入到二维正弦孔道里.用129Xe NMR二维化学交换谱技术证实,在145K的实验温度下,处于超笼不同吸附位的Xe（如在超笼中央和在超笼的两个口袋里的Xe）之间存在化学交换,其交换的时间尺度为几个毫秒.
The adsorption behavior of Xe in a novel zeolitic molecular sieve MCM-22 with two independent pore structures was investigated by temperature-programmed 129Xe NMR. The results showed that Xe adsorbed preferentially in the supercage of the molecular sieve at lower adsorption pressure. With the increase of pressure, Xe can also enter into the two-dimensional sinusoidal channel.It is confirmed by 129Xe NMR two-dimensional chemical exchange spectroscopy that the Xe at the different adsorption sites of supercages at the experimental temperature of 145K There is a chemical exchange between Xe in the two pockets of the cage, with a time scale of exchange of a few milliseconds.