The Cover highlights the importance of the commercial methanol‐to‐olefins (MTO) process, which is catalyzed by small‐pore zeolites with the chabazite structure such as SSZ‐13.In their Full Paper, X. Zhu, N. Kosinov et al. combine two advanced spectroscopy techniques to understand how hierarchical pore organization of SSZ‐13 zeolite enhances the performance at different length scales. At the crystal scale, the influence of pore hierarchy on acid site accessibility was investigated by Nanometer Accuracy by Stochastic Chemical reActions (NASCA) fluorescent microscopy. The way the hierarchical structuring improves catalyst lifetime was imaged at the reactor scale by Positron Emission Tomography (PET). More information can be found in the Full Paper by X. Zhu, N. Kosinov et al. on page 3470 in Issue 18, 2017 (DOI: 10.1002/cctc.201700567).

中文翻译：

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封面功能：利用随机化学反应，荧光显微镜和正电子发射分析法利用纳米精度探索SSZ-13沸石孔隙结构对甲醇制烯烃催化的影响（ChemCatChem 18/2017）

封面强调了商业化甲醇制烯烃（MTO）工艺的重要性，该工艺由具有菱沸石结构的小孔沸石如SSZ-13催化。 。结合两种先进的光谱技术，了解SSZ-13沸石的分层孔组织如何在不同的长度范围内提高性能。在晶体尺度上，通过随机化学反应（NASCA）荧光显微镜通过纳米精度研究了孔结构对酸性位点可及性的影响。通过正电子发射断层扫描（PET）在反应器规模上对分层结构改善催化剂寿命的方式进行了成像。可以在X. Zhu，N. Kosinov等人的论文全文中找到更多信息。在2017年第18期的第3470页 （DOI：10.1002 / cctc.201700567）。