AlSiMCM-41中孔分子筛的合成及其机理研究 |
SYNTHESIS AND FORMATION MECHANISM OF AlSMiCM-41 MESOPOROUS MOL ECULAR SIEVES |
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摘要: 以水玻璃、偏铝酸钠、CTAB为原料,研究了合成条件对制备中孔沸石分子筛MCM-41样品的影响,并讨论了孔道结构形成机理。实验表明层状相可向六角形相转变,但晶化时间过长,所得产物具有热不稳定的结构。 |
关键词: MCM-41 合成 机理 |
基金项目: 国家自然科学基金,南京大学现代分析中心测试基金 |
Abstract: AlSMCM-41 mesoporousmolecular sieve samples with SiO2/Al2O3 molar ratio in the range of 16-67 were synthesized using sodium silicate, sodium aluminate and CTAB as starting materials The structures of as-synthesized samples were controlled by synthesis conditions,and them echanign of form anon was discussed It seemed that in the form ation of AlSiMCM-41,the structures of the layeredmay transform to the hexagonal, if the crys-tallization tinewas lengthened, the latter could be transformed to aproductwith thermally unstable stucutre. |
Keywords: MCM-41 synthesis mechanism of formation |
投稿时间:1996-01-26 |
摘要点击次数: 1200 |
全文下载次数: 1738 |
何农跃,鲍书林,须沁华.AlSiMCM-41中孔分子筛的合成及其机理研究[J].无机化学学报,1996,12(3):315-321. |
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