通过原位监测Cu－ZSM－5分子筛的振动红外光谱随温度及不同处理条件的变化情况，观察到［Cu－O－Cu］2＋物种的形成过程，即两个Cu（OH）＋在脱水过程中经二聚形成［Cu－O－Cu］2＋.低交换度样品开始产生［Cu－O－Cu］2＋物种所需脱水温度较高,通过观察不同处理条件对［Cu－O－Cu］2＋的影响，说明Cu2＋是通过脱出［Cu－O－Cu］2＋中的超晶格氧而被还原为Cu＋,较高温度时［Cu－O－Cu］2＋中的超晶格氧能与气相中的氧达到某种平衡.超晶格氧的脱出性能是影响Cu－ZSM－5分子筛上铜价态变化的重要因素． The formation of [Cu-O-Cu] 2+ species was observed by in-situ monitoring of the vibrational infrared spectra of Cu-ZSM-5 zeolite with temperature and different treatment conditions, ie, the formation of two Cu (OH) Cu-O-Cu] 2+ was formed by the dimerization reaction [Cu-O-Cu] 2+. [Cu-O-Cu] , Cu2 + is reduced to Cu + by removing the superlattice oxygen in [Cu-O-Cu] 2+, the superlattice oxygen energy in [Cu-O-Cu] Of oxygen to achieve some balance.The superlattice oxygen prolapse performance is an important factor affecting the Cu-ZSM-5 molecular sieve copper valance changes.