Electrochemical Synthesis of Some Archetypical Zn2+, Cu2+, and Al3+ Metal Organic Frameworks
Electrochemical Synthesis of Some Archetypical Zn2+, Cu2+, and Al3+ Metal Organic Frameworks
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DOI：
10.1021/cg300552w
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发表时间：
2012-07-01
影响因子：
3.8
通讯作者：
Gascon, Jorge
中科院分区：
文献类型：
--
作者：
Joaristi, Alberto Martinez;Juan-Alcaniz, Jana;Gascon, Jorge
在电化学池中通过阳极溶解合成了几种典型的金属有机框架（MOFs），即HKUST-1、ZIF-8、MIL-100（Al）、MIL-53（Al）和NH 2-MIL-53（Al）。考察了溶剂、电解质、电压-电流密度、温度等反应参数对MOFs的合成产率和织构特性的影响。样品的表征涉及X射线衍射，气体吸附，原子力显微镜，漫反射红外傅里叶变换光谱，和扫描电子显微镜。在本文中，我们证明了电化学合成是一种稳健的方法，在这些多孔材料的合成中提供了额外的自由度。其主要优点是合成时间短、条件温和、易于制备、形貌可调、法拉第效率高。与溶剂热合成的样品相比，合成的MIL-53和NH 2-MIL-53样品表现出抑制的骨架柔性。
Several archetypical metal organic frameworks (MOFs), namely, HKUST-1, ZIF-8, MIL-100(Al), MIL-53(Al), and NH2-MIL-53(Al), were synthesized via anodic dissolution in an electrochemical cell. The influence of different reaction parameters such as solvent, electrolyte, voltage-current density, and temperature on the synthesis yield and textural properties of the MOFs obtained was investigated. The characterization of the samples involved X-ray diffraction, gas adsorption, atomic force microscopy, diffuse reflectance infrared Fourier transform spectroscopy, and scanning electron microscopy. In the present article, we demonstrate that electrochemical synthesis is a robust method offering additional degrees of freedom in the synthesis of these porous materials. The main advantages are the shorter synthesis time, the milder conditions, the facile synthesis of MOF nanoparticles, the morphology tuning and the high Faraday efficiencies. The synthesized MIL-53 and NH2-MIL-53 samples exhibit suppressed framework flexibility compared to samples synthesized solvothermally.