Effect of Synthesis Conditions on Formation Pathways of Metal Organic Framework (MOF-5) Crystals

详细信息    查看全文

• 作者：Colin McKinstry ; Edmund J. Cussen ; Ashleigh J. Fletcher ; Siddharth V. Patwardhan ; Jan Sefcik
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：December 4, 2013
• 年：2013
• 卷：13
• 期：12
• 页码：5481-5486
• 全文大小：343K
• 年卷期：v.13,no.12(December 4, 2013)
• ISSN：1528-7505

文摘

Metal Organic Frameworks (MOFs) represent a class of nanoporous crystalline materials with far reaching potential in gas storage, catalysis, and medical devices. We investigated the effects of synthesis process parameters on production of MOF-5 from terephthalic acid and zinc nitrate in diethylformamide. Under favorable synthesis conditions, we systematically mapped a solid formation diagram in terms of time and temperature for both stirred and unstirred conditions. The synthesis of MOF-5 has been previously reported as a straightforward reaction progressing from precursor compounds in solution directly to the final MOF-5 solid phase product. However, we show that the solid phase formation process is far more complex, invariably transferring through metastable intermediate crystalline phases before the final MOF-5 phase is reached, providing new insights into the formation pathways of MOFs. We also identify process parameters suitable for scale-up and continuous manufacturing of high purity MOF-5.