Design And Synthesis Of Binuclear Metal Phthalocyanine Naphthalene And Its Catalytic Performance For Lithium / Thionyl Chloride Battery

This thesis aims at designing and synthesizing four series of ₂4 kinds of binuclear metal phthalocyanine complexes [M₂Pc₂HnNap, M₂Pc₂HaNap, M₂（PcTN）₂Nap, M₂（PcTA）₂Nap (M = Cu²⁺, Co²⁺, Mn²⁺, Ni²⁺, Zn²⁺, Fe²⁺)] through microwave heating method, amination reaction and liquid solvent method, respectively. Numerous techniques including elemental analysis, IR, UV-vis and thermo gravimetric analysis were employed to characterize the products.All the compounds were added to Li/SOCl_<sub>2 battery systems for discharge performances tests, as well as three-electrode systems for cyclic voltammetry measurements. The results reveal that:（1） Compared with the blank test, all the evidences testify that binuclear metal phthalocyanine complexes in this thesis can improve the catalyst performances to a certain extent when operated in the electrolyte of the battery. The average discharge voltage and discharge time of the battery can be effectively improved by 0.2653 V and 823.5 s to maximum extent, respectively. For the capacity and energy, they are also found to be enhanced by 18.12%-91.62% and 21.87%-108.76%. Among the effects of diverse metal ions on the catalytic performances of phthalocyanine complexes, the complexes whose center metal ions are Mn²⁺or Co²⁺ exhibit relatively high catalytic performances. The results also indicate that Li/SOCl₂ battery whose electrolyte contains Fe₂Pc₂ or Zn₂Pc₂ possesses a certain amount of performances, whereas NI₂Pc₂ and Cu₂Pc₂ show the poor performances.（2） As a whole, the catalytic performances of binuclear metal phthalocyanine complexes are determined by center of metal ions, substituting groups and their locations by means of synergistic effect. If the systems own better conjugation, higher density of electron clouds, weaker steric effect, the molecules will be activated which lead to reducing the activation energy, accelerating the rate-limiting step, and finally improving the catalytic properties of phthalocyanine complexes. Ultimately, the performances of Li/SOCl₂ battery have been improved at the greatest extent.（3） Combined with theoretical knowledge and experimental results, catalytic mechanism of the complexes for catalyzing Li/SOCl₂ battery has been proposed.