Polyaniline, polyaniline/graphene composites were synthesized by a novel in situ chemical oxidative polymerization method including two oxidants. The morphology and structure of the material were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR). The electrochemical performance of polyaniline (PANI)-based composites was tested by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) testing, and constant current charge and discharge (GCD) tests. At 0.2 C of constant current, the discharge specific capacities of PANI/graphene oxide (PANI/GO) and PANI/GO-sodium borohydride (graphene oxide is reduced by sodium borohydride, named PANI/GO-NaBH₄) were as high as 183 mAh/g and 192 mAh/g, respectively, which was nearly twice as high as that of PANI (100 mAh/g). After 100 charge and discharge cycles, the capacity retention rates of PANI, PANI/GO, and PANI/GO-NaBH₄ were 80.4%, 89.4%, and 95.05%, respectively; the cycle performance was greatly improved before the modification. These results indicate that the composite has exciting potentials for the cathode material of zinc-rechargeable battery.

聚苯胺，聚苯胺/石墨烯复合材料是通过一种新颖的原位化学氧化聚合方法合成的，该方法包括两种氧化剂。通过场发射扫描电子显微镜（FE-SEM），透射电子显微镜（TEM），X射线衍射（XRD）和傅里叶变换红外光谱（FT-IR）对材料的形貌和结构进行了表征。聚苯胺（PANI）基复合材料的电化学性能通过电化学阻抗谱（EIS），循环伏安法（CV）测试和恒流充放电（GCD）测试进行测试。在0.2 C的恒定电流下，PANI /氧化石墨烯（PANI / GO）和PANI / GO-硼氢化钠的放电比容量（氧化石墨烯被硼氢化钠还原，称为PANI / GO-NaBH ₄）分别高达183 mAh / g和192 mAh / g，几乎是PANI（100 mAh / g）的两倍。经过100次充放电循环后，PANI，PANI / GO和PANI / GO-NaBH ₄的容量保持率分别为80.4％，89.4％和95.05％。修改前，循环性能大大提高。这些结果表明该复合材料对于可再充电锌电池的正极材料具有令人兴奋的潜力。