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五配位铝强化硅铝固体酸的固体核磁共振研究
王子春1,黄骏2,姜怡娇1,*()
Solid-State NMR Spectroscopy Studies of Enhanced Acidity of Silica-Aluminas Based on Penta-Coordinated Aluminum Species
Zi-chun WANG1,Jun HUANG2,Yi-jiao JIANG1,*()

图8. 原位1H MAS NMR谱(9.4 T)研究313 K时氘代苯与固体酸表面羟基的氢氘交换.(a) H-ZSM-5沸石和(b) SA/50的1H MAS NMR谱图;(c)采用H-ZSM-5(上)、SA/50(中)和SA/10(下)分别拟合得到的氢氘交换速率曲线[8]

Fig.8. Catalytic performance of H-ZSM-5 and AlV-enriched ASAs in H/D exchange with d6-benzene at 313 K. 1H MAS NMR spectra at 9.4 T of (a) zeolite H-ZSM-5 and (b) SA/50 (stack plot spectra). (c) Kinetics and H/D exchange rates k for H-ZSM-5 (top), SA/50 (middle), and SA/10 (bottom)[8]