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首页> 外文期刊>Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications >Synthesis, characterization and catalytic properties of a LEV type silicoaluminophosphate molecular sieve, SAPO-35 from aqueous media using aluminium isopropoxide and hexamethyleneimine template
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Synthesis, characterization and catalytic properties of a LEV type silicoaluminophosphate molecular sieve, SAPO-35 from aqueous media using aluminium isopropoxide and hexamethyleneimine template

机译：使用异丙醇铝和六亚甲基亚胺模板的水性介质合成LEV型硅铝磷酸盐分子筛SAPO-35的合成，表征和催化性能

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摘要

A small-pore silicoaluminophosphate molecular sieve, SAPO-35 was synthesized using hexamethyleneimine template and aluminium isopropoxide as aluminium source in aqueous media is reported for the first time. Pure, highly crystalline samples were obtained in short period (96 h). The samples crystallize at narrow silicon content (0.3 M SiO2). Fourier transform Infrared spectroscopic studies reveal the presence of three different silanol groups. A comparison with multinuclear solid-state Magic angle spinning nuclear magnetic resonance spectroscopic studies with FT-IR studies shows that these groups are located at Double six member ring, near to D6R and near to single six member ring. Other characterizations and methanol'to olefin reaction studies shows that the molecular sieves synthesized by aqueous and nonaqueous media are having comparable properties. It reveals a possible application of this catalyst for industrial process.
机译：以六亚甲基亚胺为模板合成了一种小孔硅铝磷酸盐分子筛SAPO-35，首次报道了异丙醇铝作为铝源的水性介质。在短时间内（96小时）获得了纯的，高度结晶的样品。样品在较窄的硅含量（0.3 M SiO2）下结晶。傅里叶变换红外光谱研究揭示了三个不同硅烷醇基团的存在。与多核固态魔术角旋转核磁共振波谱研究与FT-IR研究的比较表明，这些组位于双六元环，靠近D6R和单六元环。其他表征和甲醇制烯烃反应研究表明，由水性和非水性介质合成的分子筛具有相当的性能。它揭示了该催化剂在工业过程中的可能应用。

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