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Synthesis of Aluminophosphate Molecular Sieves in Alkaline Media |
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| Authors: | Dr Na Sheng Ye Ma Qianwen Zhu Xin Hong Juan Zhang Prof Jun Xu Feng Deng Prof Junliang Sun Prof Zhaochi Feng Prof Liang Wang Prof Xiangju Meng Prof Feng-Shou Xiao |
| Institution: | 1. Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 P. R. China
Zhejiang Henglan Science & Technology Co., Ltd, Zhejiang Hengyi Group Co., Ltd, Hangzhou, 310027 P. R. China;2. Key Laboratory of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou, 310028 P. R. China;3. Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 P. R. China;4. State Key Laboratory of Magnetic Resonance and Atomic, and Molecular Physics, Wuhan Center for Magnetic Resonance, Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071 P. R. China;5. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 P. R. China;6. College of Chemitry and Molecular Engineering, Beijing National Laboratory of Molecular Science, Peking Univeristy, Beijing, 100871 P. R. China |
| Abstract: | Unlike conventional aluminosilicate zeolites synthesized in alkaline media, aluminophosphate molecular sieves (AlPOs) have always been prepared under acidic conditions in the past three decades; this has been regarded as one of essential factors for synthesis, except for the case of silica-substituted analogues (SAPOs). For the first time, we demonstrate herein a simple and generalized route for synthesizing various types of aluminophosphate molecular sieves in alkaline media. A series of aluminophosphate sieves and their analogues have been prepared with different quaternary ammonium cations as structure-directing agents in this manner. The above successes have extended the systematic media from acidic or neutral to alkaline for the preparation of a series of aluminophosphate molecular sieves, which possibly open an alternative route for the synthesis of aluminophosphate molecular sieves. |
| Keywords: | alkaline media AlPOs aluminophosphate molecular sieves crystallization mechanism liquiid phase |