Necessity of novel energy storage devices extensively increased due to consumption of high power in various devices. To address the issues, in this report, we are addressing with a composite Iron Sulfide/reduced Graphene Oxide (Fe₃S₄/rGO) synthesized using the standard solvothermal method. X-ray diffraction and Field Emission Scanning Electron Microscope analysis results confirmed that Face-Centered cubic crystal structure of Fe₃S₄ and rGO’s surface is decorated with a mean diameter of < 50 nm Fe₃S₄ respectively. Transmission Electron Microscopy images show further evidence that dispersed Fe₃S₄ on the rGO surface. Fe₃S₄/rGO exhibits specific capacitance of 560 F/g than its individual counterparts (Fe₃S₄ = 200 F/g and rGO = 145 F/g) at 1 A/g of current density and maximum cyclic stability of 91% capacitance retention after 2000 cycles that may be the influence of synergy between the composite materials.

由于各种设备中的高功率消耗，新型能量存储设备的需求大大增加。为了解决这些问题，在本报告中，我们将解决使用标准溶剂热法合成的硫化铁/还原氧化石墨烯（Fe ₃ S ₄ / rGO）复合材料。X射线衍射和场发射扫描电子显微镜分析结果证实，Fe ₃ S ₄和rGO表面的面心立方晶体结构分别装饰有平均直径<50 nm Fe ₃ S ₄。透射电子显微镜图像显示进一步的证据表明，Fe ₃ S ₄分散在rGO表面。铁₃ 在电流密度为1 A / g时，S ₄ / rGO的比电容为560 F / g（Fe ₃ S ₄ = 200 F / g，rGO = 145 F / g），最大循环稳定性为91％电容2000次循环后的保留率可能是复合材料之间协同作用的影响。