Synthesis And Characterization Of And Electroactive Organic Framework

Porous organic frameworks(POFs) attracted much attention since it was discovered. It made outstanding performance in many application fields because of its high surface area and porosity. Compared with other porous materials, POFs possess more excellent thermal and chemical stability because the network is composed of light element with strong covalent bond. The synthetic diversity also promoted the rapid development. We can control to synthesize the porous materials with our expectant structure and property by molecular design for the pore size. Such many advantage made more people explore its more applications. To date, however, the functions of the POFs, apart from gas storage, separation and catalyst, have not yet been well explored. So, according to reticulation chemistry principle, we expect to synthesize a novel POF which have more potential value in application.As described here, we synthesized JUC-Z2 quantitatively by a Yamamoto-type Ullmann cross-coupling reaction with para-tribromotribenzylaniline as monomer in the presence of organic nickel as catalyst. The structure and thermal characterization indicated that JUC-Z2 possesses not only high surface area and accordant porosity, but also excellent thermal stability. The low press adsorption of hydrogen, methane and carbon bioxide revealed that JUC-Z2 made an outstanding carbon bioxide capture. So we subsequently tested the distinguishing ability of carbon bioxide at room temperature. The result showed that JUC-Z2 has a strong capacity to distinguish and capture carbon bioxide at room temperature.The most prominent chacater for JUC-Z2 is entirely composed of nitrogen atom and benzene rings which have richπ-electron. After doped with iodine, there is an active system full of conjugatedπ-electron which made JUC-Z2 into a conduct polymer. The measure showed that the conductivity of iodine-doped increased with 6 number degree. Moreover, this activity still existed after several recycles of bias voltage'on and off. On the other hand, JUC-Z2 also has electrochemical property because of the active redox of the center nitrogen atom in the network. Cyclic voltammogramms of JUC-Z2 powder film on Pt microelectrode in different supporting electrolytes expresses that JUC-Z2 has not only good and stable electrochemical property but also the capability of distinguishing the different guests according to their sizes by electrochemical adsorption.In conclusion, we have synthesized an organic framework JUC-Z2 with high surface area, accordant porosity, conductivity and novel electrochemical property. These new properties of JUC-Z2 different from other porous materials should make excellent performance in extensive applications such as distinguishing guests, photoelectricity display, molecular-electron component, electromagnetism shield and solar battery.