It is well known that there are skeleton defects in MFI zeolites.However,for some reason,so far,researchers only carried out some systematic research of skeleton defects on S-1.In fact,ZSM-5 zeolite,which have the same MFI topology as S-1 zeolite,also has some skeleton defects.These skeleton defects will cause ZSM-5 zeolite to produce different amounts and forms of hydroxyl nest defects.However,there are few reports on the physical and chemical properties of the detective ZSM-5 zeolite,so it is necessary to systematically study the physical and chemical properties of the hydroxyl nest in the defects.In this paper,the modification law of metal ions on defective ZSM-5 zeolite was studied,and the modification behavior of metal ions on defective HZSM-5 zeolite by hydroxyl groups was investigated,so as to lay a foundation for the development and utilization of defective ZSM-5 zeolite in the future.
维普
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