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以氧化石墨烯和Fe~(3+)为原料,采用溶剂热法合成了磁性石墨烯(Fe_3O_4@rGO)纳米复合材料,并以扫描电镜和X-射线衍射谱对复合材料的形貌和结构进行了表征。将Fe_3O_4@rGO组装到磁性玻碳电极(mGCE)表面,得到了Fe_3O_4@rGO/mGCE。研究了该修饰电极的电化学性能,并利用循环伏安法和计时电流法研究了此修饰电极对肼的电催化氧化性能。Fe_3O_4@rGO纳米粒子具有较高的导电效率,可加快电极表面电荷传递速度,同时该纳米粒子对肼的电催化氧化作用显著的促进作用。
Magnetic graphene (Fe_3O_4 @ rGO) nanocomposites were synthesized by solvothermal method using graphene oxide and Fe 3+ as raw materials. The morphology and structure of the composites were characterized by scanning electron microscopy and X-ray diffraction. Characterized. Fe_3O_4 @ rGO was assembled on the surface of a magnetic glassy carbon electrode (mGCE) to obtain Fe_3O_4 @ rGO / mGCE. The electrochemical performance of the modified electrode was studied. The electrocatalytic oxidation of hydrazine by the modified electrode was studied by cyclic voltammetry and chronoamperometry. Fe_3O_4 @ rGO nanoparticles have higher conductivity, which can accelerate the charge transfer rate on the surface of the electrode and promote the electrocatalytic oxidation of hydrazine.