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首页> 外文期刊>Microporous and mesoporous materials: The offical journal of the International Zeolite Association >Synthesis and characterization of mesoporous sodalite and investigation of the effects of inorganic salts on its structure and properties
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Synthesis and characterization of mesoporous sodalite and investigation of the effects of inorganic salts on its structure and properties

机译：中孔雄籽的合成与表征和无机盐对其结构和性能影响的研究

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摘要

Mesoporous sodalite was prepared using a bridged polysilsesquioxane monomer as the mesopomgen in the presence of chloride-containing salts (NaCl, KCl, and NH4Cl), and characterized using different analytical techniques. As the amount of organosiloxane increased in the synthetic mixture, the total BET surface areas of samples initially increased and then decreased. When 6 ml mesoporogen was added, the prepared sodalite sample showed the largest external BET surface area of 179 m(2)/g. Meanwhile, the addition of salts promoted crystallization, and the sodalite surface area reached 295 m(2)/g, making its skeletal framework more regular and weakening the template effect. Furthermore, mesopomus sodalite samples were used to evaluate the alkali catalytic performance of 1,3-dichlompropanol during the preparation of epichlomhydrin. The results showed that a larger surface area and pore volume were beneficial to the conversion and selectivity of this reaction.
机译：在含氯化物的盐（NaCl，KCl和NH 4 Cl）存在下，使用桥接多晶硅硅氧烷单体制备介孔的钠钠，作为氯化酰胺的盐（NaCl，KCl和NH 4 Cl），并使用不同的分析技术表征。 随着合成混合物中有机硅氧烷增加的量，样品的总BET表面积最初增加，然后降低。 当加入6ml中泊酮时，制备的罗马石样品显示出最大的外部BET表面积为179m（2）/ g。 同时，加入盐促进结晶，钠钠表面积达到295米（2）/ g，使其骨骼框架更加规律和削弱模板效果。 此外，Mesopomus索索罗石样品用于评估综合醇的制备期间1,3-二氯甲烷醇的碱催化性能。 结果表明，较大的表面积和孔体积有利于该反应的转化和选择性。

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