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邁步從頭越
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[求助]
ZSM-5制備的晶化溫度最低有多少 已有5人參與
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| 今天在一篇文獻(xiàn)中看到晶化條件 at 333 K for 3 d under static condition,不知道是寫錯(cuò)了,還是溫度就是這么低,使用的C14TMA模板劑,求助! |
木蟲 (著名寫手)
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Zeolite crystals were synthesized by the conventional hydrothermal method. The series of amphiphilic cations were added to the reactant mixture in bromide forms, with sodium hydroxide used as mineralizer. The final chemical composition was adjusted to SiO2 :0.125Na 2O:0.025SDA:17.5H2 O. Briefly, sodium hydroxide (Tokyo Kasei) was dissolved in distilled water, followed by the addition of the SDA (Tokyo Kasei). Then, fumed silica (Cab-O-sil M5, Cabot) was added to the mixture and mixed by hand with mortar and pestle. The homogenized mixture was transferred into a 23 ml Teflon©-lined autoclave (#4749, Parr) and subjected to the hydrothermal treatment at 333 K for 3 d under static condition. The obtained products were filtered, and washed with distilled water, then dried at 353 K for 12 h in an oven. |
木蟲 (小有名氣)
木蟲 (正式寫手)
鐵蟲 (初入文壇)
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