Peng Haijun, Raya Jésus, Richard Fanny, Baaziz Walid, Ersen Ovidiu, Ciesielski Artur, Samorì Paolo
Université de Strasbourg, CNRS, ISIS, 8 alleé Gaspard Monge, 67000, Strasbourg, France.
Membrane Biophysics and NMR, Institute of Chemistry, UMR 7177, Université de Strasbourg, Membrane Biophysics and NMR, 1 Rue Blaise Pascal, 67000, Strasbourg, France.
Angew Chem Int Ed Engl. 2020 Oct 26;59(44):19602-19609. doi: 10.1002/anie.202008408. Epub 2020 Aug 13.
Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) have attracted enormous attention in recent years. Recently, MOF@COF are emerging as hybrid architectures combining the unique features of the individual components to enable the generation of materials displaying novel physicochemical properties. Herein we report an unprecedented use of aza-Diels-Alder cycloaddition reaction as post-synthetic modification of MOF@COF-LZU1, to generate aza-MOFs@COFs hybrid porous materials with extended π-delocalization. A a proof-of-concept, the obtained aza-MOFs@COFs is used as electrode in supercapacitors displaying specific capacitance of 20.35 μF cm and high volumetric energy density of 1.16 F cm . Our approach of post-synthetic modification of MOFs@COFs hybrids implement rational design for the synthesis of functional porous materials and expands the plethora of promising application of MOFs@COFs hybrid porous materials in energy storage applications.
金属有机框架材料（MOFs）和共价有机框架材料（COFs）近年来引起了极大关注。最近，MOF@COF作为一种混合结构正在兴起，它结合了各个组分的独特特性，能够生成具有新颖物理化学性质的材料。在此，我们报道了前所未有的使用氮杂狄尔斯-阿尔德环加成反应对MOF@COF-LZU1进行后合成修饰，以生成具有扩展π离域的氮杂MOFs@COFs混合多孔材料。作为概念验证，所获得的氮杂MOFs@COFs用作超级电容器中的电极，显示出20.35 μF cm的比电容和1.16 F cm的高体积能量密度。我们对MOFs@COFs杂化物进行后合成修饰的方法实现了功能多孔材料合成的合理设计，并扩展了MOFs@COFs混合多孔材料在储能应用中大量有前景的应用。
