氟化铵刻蚀对ZSM-5分子筛结构及酸性的调控机制

王靖, 肖瑶, 俞鑫, 易先锋, 郑安民

Influence Mechanism of NH4F Etching on the Structure and Acidity of ZSM-5 Zeolite

WANG Jing, XIAO Yao, YU Xin, YI Xianfeng, ZHENG Anmin

图3 ZSM-5分子筛原粉及不同浓度NH4F刻蚀样品的(a) 27Al MAS NMR、(b) 29Si MAS NMR及(c) 1H MAS NMR谱图

Fig. 3 (a) 27Al MAS NMR, (b) 29Si MAS NMR and (c) 1H MAS NMR spectra of the parent and NH4F-etched ZSM-5 samples