Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 35, Pages 12138-12142Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201906559
Keywords
seeding; silica; sustainable synthesis; zeolites
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Funding
- National Key Research and Development Program of China [2017YFB0702803]
- National Natural Science Foundation of China [21703203, 21802053, 21673282, 21673205]
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Currently, the synthesis of pure silica zeolites always requires the presence of organic structure-directing agents (OSDAs), which direct the assembly pathway and ultimately fill the pore space. A sustainable route is now reported for synthesizing pure silica zeolites in the absence of OSDAs from a combined strategy of zeolite seeding and alcohol filling, where the zeolite seeds direct crystallization of zeolite crystals from amorphous silica, while the alcohol is served as pore filling in the zeolites. Very importantly, the alcohol could be fully washed out from zeolite pores by water at room temperature, which completely avoids calcination at high temperature for removal of OSDAs in the synthesis of pure silica zeolites.
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