固体核磁共振技术在锡硅分子筛表征中的应用
肖瑶1,2,夏长久3,易先锋1,*(
),刘凤庆1,2,刘尚斌4,郑安民1,*()
),刘凤庆1,2,刘尚斌4,郑安民1,*()
Progress in the Studies on Sn-Zeolites by Solid-State Nuclear Magnetic Resonance
Yao XIAO1,2,Chang-jiu XIA3,Xian-feng YI1,*(),Feng-qing LIU1,2,Shang-bin LIU4,An-min ZHENG1,*()
),Feng-qing LIU1,2,Shang-bin LIU4,An-min ZHENG1,*()
图7. (a) Sn-Beta分子筛不同活性中心（δP 55.8和54.9的“open”锡位点）含量与葡萄糖异构化反应活性之间的关系；(b) Sn-Beta分子筛不同活性中心（δP 58.6和57.2的“closed”锡位点）含量与催化苯甲醛与丙酮缩合反应活性之间的关联（根据文献[
Fig.7. Site time yield (STY) for (a) glucose isomerization in water and (b) aldol condensation of benzaldehyde and acetone in toluene catalyzed by different Sn-Beta catalysts plotted against the percent integrated 31P peak area normalized by P and Sn content at (a) δiso = 55.8 and 54.9 ppm and (b) δiso = 58.6 and 57.2 ppm (Reproduced from Ref. [
