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首页> 外文期刊>International Journal of Electrochemical Science >Facile Synthesis of Fe-MOF/rGO nanocomposite as an Efficient Electrocatalyst for Nonenzymatic H2O2 Sensing
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Facile Synthesis of Fe-MOF/rGO nanocomposite as an Efficient Electrocatalyst for Nonenzymatic H2O2 Sensing

机译：轻松合成Fe-MOF / rGO纳米复合材料作为非酶H 2 O 2 传感的高效电催化剂

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An Fe-MOF (metal?organic framework)/reduce graphene oxide (rGO) nanocomposite was formed byusing an efficient synthetic method. The morphology and structure of the Fe-MOF/rGO nanocompositewere characterized by scanning electron spectroscopy (SEM) and X-ray diffraction (XRD). The Fe-MOF/rGO nanocomposites were immobilized on a carbon paste electrode (CPE) to construct a high-performance nonenzymatic electrochemical H 2 O 2 sensor. A cyclic voltammetry (CV) study showedthat the Fe-MOF/rGO nanocomposites displayed better electrocatalytic activity toward H 2 O 2 reductioncompared to that of Fe-MOF. An amperometric study indicated that the H 2 O 2 sensor displayed highperformance, which offered a low detection limit (0.5 μM), a high sensitivity (5.17 μA mM ?1 cm ?2 ),and a wide linear range (from 5.0 to 945 μM). An electrochemical reaction mechanism was proposedfor H 2 O 2 reduction on the Fe-MOF/rGO/CPE. Importantly, the as-fabricated H 2 O 2 sensor exhibitedgood reproducibility and excellent selectivity. Furthermore, the constructed high-performance sensorwas utilized to monitor the H 2 O 2 levels in real samples, and satisfactory results were obtained. Theseresults demonstrated that the Fe-MOF/rGO nanocomposite can be used as a good electrochemicalsensor material in practical applications.
机译：Fe-MOF（金属有机骨架）/氧化石墨烯（rGO）纳米复合物是通过有效的合成方法形成的。 Fe-MOF / rGO纳米复合材料的形貌和结构通过扫描电子光谱（SEM）和X射线衍射（XRD）表征。将Fe-MOF / rGO纳米复合材料固定在碳糊电极（CPE）上，以构建高性能的非酶电化学H 2 O 2传感器。循环伏安法（CV）的研究表明，与Fe-MOF相比，Fe-MOF / rGO纳米复合材料对H 2 O 2还原具有更好的电催化活性。一项安培研究表明，H 2 O 2传感器显示出高性能，具有低检测限（0.5μM），高灵敏度（5.17μAmM？1 cm？2）和宽线性范围（从5.0到945μM）。 ）。提出了一种在Fe-MOF / rGO / CPE上还原H 2 O 2的电化学反应机理。重要的是，所制造的H 2 O 2传感器表现出良好的再现性和优异的选择性。此外，利用所构造的高性能传感器监测实际样品中的H 2 O 2含量，并获得满意的结果。这些结果表明，Fe-MOF / rGO纳米复合材料可在实际应用中用作良好的电化学传感器材料。

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