原位固体核磁共振研究温和条件下丙烷在镓改性H-ZSM-5上的活化  

In situ MAS NMR Study on Propane Activation over Ga-modified H-ZSM-5 Under Mild Condition

作　　者：邹雁[1] 石磊[1] 马卓娜[1] 朱卡克[1] 贺鹤勇[1] 

机构地区：[1]复旦大学化学系

出　　处：《高等学校化学学报》2003年第3期525-527,共3页Chemical Journal of Chinese Universities

基　　金：教育部科学技术重点项目;国家杰出青年基金 (批准号 :2 0 0 0 5 310 )资助

摘　　要：C MAS NMR has been performed in situ to investigate the activation of 13C labeled propane under a mild condition over Ga-modified H-ZSM-5 catalysts prepared via different methods. The results indicate that the ion-exchanged and/or its related Ga species are the highly active catalytic components, while impregnated Ga species is not the active species for propane activation at 573 K.C MAS NMR has been performed in situ to investigate the activation of 13C labeled propane under a mild condition over Ga-modified H-ZSM-5 catalysts prepared via different methods. The results indicate that the ion-exchanged and/or its related Ga species are the highly active catalytic components, while impregnated Ga species is not the active species for propane activation at 573 K.

关 键 词：原位固体核磁共振 丙烷 镓 改性 H-ZSM-5 分子筛催化剂 烷烃 芳构化 活化 

分 类 号：O643.36[理学—物理化学] O623.11[理学—化学]