含2,5-呋喃二羧酸之三價金屬有機骨架的 合成與氣體吸附性質研究

Synthesis and Gas Adsorption study of Metal(Ⅲ)-Organic Frameworks Based on 2,5-Furandicarboxylic Acid

李秉翰(Bing-Han Li)

指導教授 ： 林嘉和

中原大學/理學院/化學研究所/碩士(2015年)

https://doi.org/10.6840/cycu201500393

摘要

本論文中，以2, 5 -呋喃二羧酸(Furan-2, 5-dicarboxylic acid, H2FDA)作為配位基，並嘗試合成出新穎MOFs孔洞材，並加以鑑定結構與性質探討。
實驗中以三價金屬與H2FDA反應，成功合成出4個化合物：
[Al(OH)(FDA)] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ (1)
[Ga(OH)(FDA)] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ (2)
[In(OH)(FDA)] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ (3)
[Sc3(H2O)3O(FDA)3](OTf) ∙∙∙∙∙∙ (4)
所有MOFs均以粉末X-射線繞射儀或單晶X-ray繞射儀來鑑定產物結構，利用場發射式掃描電子顯微鏡觀察產物外觀及尺寸大小。以熱重分析儀、表面積及孔徑分析儀分析、元素分析儀、螢光放光與紅外光光譜儀來探討化合物特性。其中化合物1在77 K, 1atm下H2儲存量高達2.56 wt%；以及二氧化碳對甲烷(CO2/CH4)吸附量有傑出的選擇率。

關鍵字

2 5-?喃二羧酸 ； 金屬有機骨架

並列摘要

In this study, we have synthesized a series of four new metal organic frameworks (MOFs) based on furan-2,5-dicarboxylic acid (H2FDA) as linkers and trivalent metal (Al3+, In3+, Ga3+, and Sc3+).
[Al(OH)(FDA)] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ (1)
[Ga(OH)(FDA)] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ (2)
[In(OH)(FDA)] ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ (3)
[Sc3(H2O)3O(FDA)3](OTf) ∙∙∙∙∙∙ (4)
These new MOFs were structurally characterized by powder X-ray diffraction (pXRD) or single crystal X-ray diffraction data. The shape and particle size of the new MOFs were identified by field emission scanning electron microscope (FESEM). Further characterization for all the MOFs were done with thermal gravimetric analysis (TGA), gas sorption instrument, elemental analysis (EA), fluorescence and fourier transform infrared spectroscopy. Complex 1 has the highest capacity for H2 gas storage to 2.59 wt% at 77 K under 1 atm H2 atmosphere. Also, it has excellent selectivity for CO2/CH4 adsorption.

並列關鍵字

H2FDA ； MOF

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