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OALib Journal期刊
ISSN: 2333-9721
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纤维状形貌ts-1分子筛的形成
DOI: 10.3969/j.issn.1671-7627.2012.04.013, PP. 65-68
Keywords: 钛硅分子筛,纤维状形貌,自堆积,晶体生长
Abstract:
采用常规水热方法制备自堆积纤维状ts-1分子筛。考察配料温度、老化时间、反应时间对ts-1分子筛形貌的影响,并用x线衍射仪(xrd)、扫描电子显微镜(sem)表征ts-1晶体纤维状结构的形成。结果表明:ts-1分子筛的形貌主要受配料温度的影响。配料温度越高,越容易快速形成大量尺寸均一的晶核,不仅使晶体快速生长,而且促进了自堆积形貌的形成。进入mfi骨架中的ti诱导产生的晶体颗粒间羟基的脱水缩合反应发生在ts-1晶体生长初期。
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