| In recent years,due to their diversity,high specific capacity and recyclable characteristics,organic materials have attracted great attention,especially in the application of zinc-ion battery（AZIBs）in water system,which has the characteristics of safety,high capacity and low cost,and can be applied in energy storage devices.At present,the solubility and conductivity of organic materials need to be further improved.Developing new organic electrode materials is an effective way to solve the above problems.The structure of organic quinonamine polymers contains redox-active C=O groups and is structurally flexible,which make quinonamine polymers can be used as good organic electrode materials.This topic takes quinone amine organic polymer materials as the research object,the main research contents are as follows:A novel organic quinone amine polymer（PTQU）was prepared by solution polymerization of tetrachlorobenzene quinone and urea.Fourier transform infrared spectroscopy（FT-IR）,laser microraman spectroscopy（Raman）and X-ray photoelectron spectroscopy（XPS）show that the PTQU structure contains C=C-N and C-N-H bonds between tetrachlobenzoquinone and urea.The effects of different proportions and temperatures on their electrochemical properties were studied,and PTQU-1.5,PTQU-2,PTQU-3,PTQU-2-130,PTQU-2-140 and PTQU-2-150 were prepared,respectively.The electrochemical test results show that PTQU-2-150 has the optimal performance,and the initial discharge capacity is 154.0 m Ah g-1 when the current density is 0.02 A g-1 and the voltage window is 0.3-1.8 V.When the current density is 0.10 A g-1,the capacity retention rate is 65.4%after 450 cycles.The optimal prepared organic quinone amine polymer material（PTQU）was in situ combined with reduced graphene oxide（r GO）and carbon nanotubes（CNT）,respectively.PTQU/r GO（2:1,3:1,4:1）and PTQU/CNT（2:1,3:1,4:1）were obtained.The effect of addition amount of r GO and CNT on electrochemical properties of PTQU was studied.The electrochemical test results show that PTQU/r GO（3:1）electrode has the optimal performance.When the current density is 0.02 A g-1,the initial discharge capacity is 159.1m Ah g-1.When the current density is 0.10 A g-1,the capacity retention rate is 76.1%after450 cycles.PTQU/CNT（3:1）electrode has the optimal performance,and the initial discharge capacity is 162.5 m Ah g-1 at 0.02 A g-1.When the current density is 0.10 A g-1,the capacity retention rate is 74.2%after 450 cycles.The discharge capacity and retention rate of PTQU/r GO（3:1）and PTQU/CNT（3:1）electrodes are significantly improved compared with PTQU-2-150.Another new organic quinone amine polymer（PTQM）was prepared from tetrachlorobenzene quinone and melamine.The FT-IR,Raman and XPS tests show that the PTQM structure contains C=C-N and C-N-H bonds connected with tetrachlorobenzene quinone and melamine.The effects of different proportions and temperatures on their electrochemical properties were studied,and PTQM-1,PTQM-1.2,PTQM-1.5,PTQM-1.2-130,PTQM-1.2-140 and PTQM-1.2-150 were prepared respectively.Then,PTQM with the optimal performance was recombined with CNT in situ to obtain PTQM/CNT（2:1,3:1,4:1）.The electrochemical effect of CNT addition on PTQM was investigated.Electrochemical tests show that PTQM-1.2-150 and PTQM/CNT（3:1）have the optimal performance.At the current density of 0.02 A g-1 and the voltage window of0.3-1.6 V,PTQM-1.2-150 and PTQM/CNT（3:1）electrodes provide an initial discharge specific capacity of 147.6 m Ah g-1 and 166.3 m Ah g-1,respectively.When the current density is 0.10 A g-1,the capacity retention rate of PTQM-1.2-150 electrode after 450cycles is 59.4%,and the capacity retention rate of PTQM/CNT（3:1）after 450 cycles is62.2%.The specific discharge capacity and retention rate of PTQM/CNT（3:1）electrode are higher than those of PTQM-1.2-150. |
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