Metal organic framework-derived carbon aerogel, preparation method thereof and application in lithium ion batteries

A preparation method of an MOFs-derived carbon aerogel, comprising following steps:

• mixing a dichloromethane solution of tris(4-(pyridin-4-yl)phenyl)amine and a methanol solution of CdCl2 for coordination reaction to obtain [Cd(tppa)2Cl2];
• and performing carbonization of the [Cd(tppa)2Cl2] under a protective atmosphere to obtain the MOFs-derived carbon aerogel, wherein a molar ratio of the tris(4-(pyridin-4-yl)phenyl)amine to CdCl2 is 6-8:2-3, a temperature of the coordination reaction is room temperature;
• a mode of mixing the dichloromethane solution of tris(4-(pyridin-4-yl)phenyl)amine and the methanol solution of CdCl2 comprises a first mode or a second mode;
• the first mode comprises following steps:
• dropwise adding the dichloromethane solution of tris(4-(pyridin-4-yl)phenyl)amine into the methanol solution of CdCl2;
• the second mode comprises following steps:
• putting the dichloromethane solution of tris(4-(pyridin-4-yl)phenyl)amine at a bottom of a reaction vessel, then adding a dichloromethane-methanol mixed solution, and then adding the methanol solution of CdCl2;
• when a method of the first mode is used for mixing, a duration of the coordination reaction is 20-30 h;
• when a method of the second mode is used for mixing, a duration of the coordination reaction is 24-27 days;
• the [Cd(tppa)2Cl2] is a powder crystal or a single crystal;
• crystal data of the single crystal is:
• belonging to monoclinic system P21/c, and an asymmetric unit comprises one CdII ion, two ligand tppa molecules and two chloride ions.