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固体核磁共振技术在锡硅分子筛表征中的应用
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Progress in the Studies on Sn-Zeolites by Solid-State Nuclear Magnetic Resonance
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图8. Si-Beta分子筛以及各种锡硅分子筛(a)吸附TMPO的31P NMR谱图、(b)吸附2-13C-丙酮的13C CP MAS NMR谱图、(c)吸附NH3的1H NMR谱图及差谱(根据文献[ |
Fig.8. (a) 31P MAS and (b) 13C CP MAS NMR spectra of Si-Beta and Sn-containing Beta zeolites recorded after adsorption of TMPO and 2-13C-acetone, respectively. (c) 1H MAS NMR or difference spectra of various dehydrated Sn-containing Beta zeolites recorded before and after adsorption of ammonia (Reproduced from Ref. [ |
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