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固體水熱法合成微/介孔ZSM-5沸石研究 = Study on hydr...

國立高雄大學應用化學系碩士班

固體水熱法合成微/介孔ZSM-5沸石研究 = Study on hydrothermal synthesis of solid micro / mesoporous ZSM-5 zeolite

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Study on hydrothermal synthesis of solid micro / mesoporous ZSM-5 zeolite
作者:	蔡仁富,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	民99[2010]
面頁冊數:	133面圖，表 : 30公分;
標題:	介孔ZSM-5
標題:	mesoporous ZSM-5
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/39701904580980162823
摘要註:	最近文獻研究顯示，在許多吸附與催化反應，介孔沸石性能優於傳統微孔沸石，可以提升沸石之反應選擇率或催化穩定性，具有工業應用潛力。本論文研究以固體水熱法合成方式，利用固體矽源製備階層式介孔ZSM-5沸石，探討固體矽源結構與形貌對於介孔ZSM-5沸石之微/介孔複合孔洞結構與沸石吸附/催化特性影響，藉以推論無定型固體氧化矽(amorphous silica)生成沸石之結晶轉換機制，進而設計適當之固體矽源，得以控制階層式構造(hierarchical structure)。本研究探討介孔氧化矽MCM-41與氧化矽塊材等無定型固體矽源之轉換合成。在MCM-41矽源方面，分別以不同MCM-41樣品，在不同的水熱環境下蒸煮，進行固體轉換。利用XRD與IR光譜鑑定沸石結晶以追蹤結晶速率，實驗結果顯示，TEOS製備MCM-41之結晶速率高於Na2Si3O7合成者。BET吸附鑑定結果證實所有原位轉換之ZSM-5樣品存有介孔性質，Na2Si3O7製備Al-MCM41在酸性水熱環境下固體轉換12小時所生成之ZSM-5樣品AWG-12所具備之介孔面積Smeso與孔體積Vmicro高於TEOS製備樣品，同時，擁有最高n-Hexane與3-Methylpentane吸附量。MCM-41管壁結晶化過程涉及SiO2鍵角改變，導致MCM-41管道破裂，沸石晶粒可能生成在管道內或外管壁，吾人結合27Al NMR及TEM/SEM等相關分析，進一步推論轉換機制。以固體轉換法，利用簡易壓製氧化矽塊材合成ZSM-5，ZSM-5將可以藉由塊材的介孔洞，形成具有複合孔構造之沸石，進而在塊材中添加天然物(如纖維素等)以侷限氧化矽組裝，預期可以縮小微/介孔ZSM-5沸石結晶。本實驗將亦探討該等不同SiO2構型之固體轉換機制，成為一般化的介孔沸石合成方法，可以直接利用非晶型氧化矽轉換生長沸石。 Recent literature shows the performance of mesoporous zeolite is better than the tranditional zeolite in the many adsorption and catalytic reactions. It can improve the reaction selectivity or zeolite’s stability. And it has the potential for industrial applications. This study takes the form of solid hydrothermal methods to use solid silicon source preparation hierarchical ZSM-5 zeolite. To explore the structure and morphology of solid silica source for the mesoporous ZSM-5 zeolite of micro / mesoporous composite zeolite pore structure and adsorption / catalytic performance, and to understand the amorphous solid silica of the crystalline zeolite conversion generates mechanism, and then design appropriate solid silicon source, to control the hierarchical structure. In this study, we explored the mesoporous silica MCM-41 and other silica bulk materials to do the conversion synthesis. We used different samples of MCM-41 as the silica source. We also used XRD and IR spectral identification of the crystallization to track the rate of zeolite crystallization. The results showed that MCM-41 prepared using TEOS crystallization rate is higher than Na2Si3O7. The BET adsorption identification confirmed in situ conversion of all the samples of ZSM-5 had mesoporous structures. Preparation of Al-MCM41 using Na2Si3O7 is under the acidic hydrothermal environment in the conversion of solid 12 hours of ZSM-5 generated by the AWG-12 samples possess mesoporous area (Smeso) and pore volume (Vmicro) than TEOS samples. And AWG-12 had the highest n-hexane and 3-Methylpentane adsorption. As the wall of MCM-41 crystallization process involves changes in bond angle of SiO2, leading to MCM-41 pipeline rupture. Zeolite crystal may be generated within or outside the pipe wall. I combine 27Al NMR and TEM / SEM and other related analysis and further inference mechanisms. I was prepared using a simple suppression of bulk use of silica. And I used the solid conversion ZSM-5 zeolite synthesized by use of these bulks. The ZSM-5 zeolite which will be formed by the holes in bulk with complex pore structure of zeolite. After adding in bulk natural products (such as cellulose) to limit the assembly of cellulose. I hope to narrow the micro / mesoporous ZSM-5 zeolite crystals. This experiment also explored the different configuration of the solid SiO2 conversion mechanism. This method can be generalized to the mesoporous zeolite synthesis. Then we can use the growth of amorphous silica zeolite conversion.

固體水熱法合成微/介孔ZSM-5沸石研究 = Study on hydrothermal synthesis of solid micro / mesoporous ZSM-5 zeolite
蔡, 仁富

固體水熱法合成微/介孔ZSM-5沸石研究 = Study on hydrothermal synthesis of solid micro / mesoporous ZSM-5 zeolite / 蔡仁富撰 - [高雄市] : 撰者, 民99[2010]. - 133面 ; 圖，表 ; 30公分.
參考書目：面.
介孔ZSM-5mesoporous ZSM-5

固體水熱法合成微/介孔ZSM-5沸石研究 = Study on hydrothermal synthesis of solid micro / mesoporous ZSM-5 zeolite
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