离子键和氢键连接的PANI/GO的制备及倍率充放电性能

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中图分类号：TQ152 文献标志码：A DOI： 10.3969/j.issn.1003-9015.2025.00.010

Abstract： In order to improve the rate charge/discharge performance and cyclic performance of graphite oxide （GO），PANI/GO composites with excellent charge/discharge performance were prepared by grafting polyaniline （PANI） on GO through ionic and hydrogen bonds. The physical characteristics of PANI/GO were analyzed by X-ray diffraction， infrared spectroscopy， X-ray photoelectron spectroscopy， scanning electron microscopy， energy dispersion spectrum and N2 adsorption/desorption techniques. Besides， the charging/discharge performance of PANI/GO in KOH electrolyte was evaluated using a symmetrical capacitor. The results show that GO has a hexagonal phase crystaline structure. After the modification，GO is coated with PANI particles and the content ofN atoms is increased by 5 times. In PANI/GO，PANI and GO are connected by ionic and hydrogen bonds and N exists in the framework as -NH2+- ， -NH- and species. In KOH solution， the electrochemical feature of PANI/GO is dominated by both electrical double-layer capacitance （EDLC） and pseudocapacitance. At 0.2A⋅g-1 ， the specific discharge capacity of PANI/GO is 99.1F⋅g-1 ，which is 2.1 times that of GO.When the current density is enhanced to 10A⋅g-1 ，the capacitance retention rate is 1.15 times that of GO.After 5000 cycles， the capacity retention of PANI/GOis 4.9% higher than that of GO.The research results could provide reference for the improvement of rate charge/discharge properties and cyclic feature of low conductivity porous materials.

Key words： graphite oxide； polyaniline； ionic bond; hydrogen bond; rate charge/discharge

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目前，化石燃料使用量日益增大，空气中二氧化碳浓度急剧增加。（剩余18879字）