单个晶体水平的表征：单晶MFI型沸石颗粒
Characterization at the Level of Individual Crystals: Single-Crystal MFI Type Zeolite Grains.
作者信息
Gruene Tim, Li Teng, van Genderen Eric, Pinar Ana B, van Bokhoven Jeroen A
机构信息
Paul Scherrer Institut, 5232, Villigen PSI, Switzerland.
ETH Zurich, Inst. f. Chemie- u. Bioing.wiss., Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland.
出版信息
Chemistry. 2018 Feb 16;24(10):2384-2388. doi: 10.1002/chem.201704213. Epub 2018 Jan 17.
Electron-diffraction data on the zeolites Silicalite-1 and ZSM-5 (both MFI framework type) were collected from individual grains of about 150×100×50 nm . Crystals were synthesized with tetrapropylammonium as structure-directing agent. The resolution extended to about 0.8 Å for Silicalite-1 and about 0.9-1.0 Å for ZSM-5 crystals. Analysis of several data sets showed that at the nanometre-scale, these zeolite crystals are single crystals and not intergrown.
从尺寸约为150×100×50纳米的单个晶粒收集了硅沸石-1和ZSM-5（均为MFI骨架类型）的电子衍射数据。使用四丙基铵作为结构导向剂合成晶体。硅沸石-1的分辨率扩展到约0.8 Å，ZSM-5晶体的分辨率扩展到约0.9 - 1.0 Å。对多个数据集的分析表明，在纳米尺度上，这些沸石晶体是单晶，而非共生生长。
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