Citation: BAI Ya-Dong, ZHENG Jia-Jun, FAN Bin-Bin. One Step Synthesis of SAPO-34 Molecular with Hierarchical Porosity[J]. Chinese Journal of Inorganic Chemistry, ;2015, 31(8): 1505-1510. doi: 10.11862/CJIC.2015.225 shu

One Step Synthesis of SAPO-34 Molecular with Hierarchical Porosity

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Research Centre of Energy Chemical and Catalytic Technology, Taiyuan University of Technology, Taiyuan 030024, China

Corresponding author: FAN Bin-Bin,
Received Date: 10 December 2014
Available Online: 10 June 2015
Fund Project: 国家自然科学基金项目(No.21371129,21376157,21246003) (No.21371129,21376157,21246003)中国石油化工股份有限公司(No.111110)项目资助。 (No.111110)

Meso-SAPO-34 molecular sieve was synthesized with TPOAC and colloidal silica as the silica source, the total surface area is up to 649 m²·g^-1. The ratio of TPOAC and silica sol was investigated, which affects external surface area of SAPO-34. The structure was determined by XRD, BET, SEM, NH₃-TPD, results show that mesoporous SAPO-34 external surface area can be adjusted, more the defect position crystal appearance, reduce the amount of strong acid weak acid, a weak trend.Under the condition of the ration of TPOAC and silica sol was 3:2, reaction time was 10 days and the ratio of n_Al₂O₃:n_P₂O₅:n_Si:n_TEAOH:n_H₂O=1:0.9:0.5:2:60, the external surface area of synthetic mesoporous SAPO-34 reaches the maximum, the value is 100 m²·g^-1.
- mesoporous SAPO-34;silane coupling agent;synthesis
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