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制备Co掺杂Fe₂O₂CO₃-rGO纳米复合材料用于H₂O₂的电催化还原

Preparation of a novel cobalt-doped Fe₂O₂CO₃-reduced graphene oxide nanocomposites for the electrocatalytic reduction of H₂O₂

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【Author】 Yongcong Wang;Haitao Han;Dawei Pan;Peiqing Zhang;Yantai Institute of Coastal Zone Research(YIC), Chinese Academy of Sciences(CAS);School of Chemistry and Chemical Engineering, Yantai University;

【机构】中国科学院烟台海岸带研究所；烟台大学；

【摘要】本文采用一步电沉积法在玻碳电极表面制备了Co掺杂的Fe₂O₂CO₃-rGO （Co@Fe₂O₂CO₃-rGO）纳米复合材料。采用扫描电子显微镜,透射电子显微镜,X射线衍射,X射线光电子能谱和电化学方法对其进行了表征。结果表明Co@Fe₂O₂CO₃-rGO纳米复合材料对H₂O₂有良好的电催化性能。将其用于对H₂O₂检测,线性范围为1.5-956μmol·L^-1,检测限为0.5μmol·L^-1。此修饰电极具有良好的稳定性和抗干扰能力。更多还原

【Abstract】 In this work, cobalt-doped Fe₂O₂CO₃-reduced graphene oxide composite film was fabricated on glass carbon electrode using one-step electrodeposition method.Scanning electron microscopy, transmission electron microscopy, X-ray diffraction spectroscopy, X-ray photoelectron spectroscopy and electrochemical methods were used to characterize the Co@Fe₂O₂CO₃-rGO.The results showed that Co@Fe₂O₂CO₃-rGO nanocomposite has excellent effect towards the electro-reduction of H₂O₂.The nanocomposite was used to the detection of H₂O₂, and the calibration curves were observed in the range of 1.5—956μmol·L^-1 H₂O₂ with detections limit of 0.5 μmol·L^-1.The electrochemical sensor also has excellent stability and selectivity.更多还原