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12. (A) (a) 30 μmol⋅g?1、(b) 100 μmol⋅g?1的丙酮吸附在393 K脱水的Sn-Beta分子筛上，以及(c) 30 μmol⋅g?1、(d) 100 μmol⋅g?1的丙酮吸附在673 K脱水的Sn-Beta分子筛上的13C CP MAS NMR谱图.(B) Sn-Beta分子筛催化丙酮与环己醇反应机理（根据文献[
Fig.12. (A) 13C CP MAS NMR spectra of (a) 30 μmol⋅g?1 and (b) 100 μmol⋅g?1 of 2-13C-acetone adsorbed on Sn-Beta zeolite dehydrated at 393 K, (c) 30 μmol⋅g?1 and (d) 100 μmol⋅g?1 of 2-13C-acetone adsorbed on Sn-Beta zeolite dehydrated at 673 K. (B) Proposed catalytic cycle for the reaction between acetone and cyclohexanol on Sn-Beta zeolite. (Reproduced from Ref. [
