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Photo-reduction assisted synthesis of MnO2/reduced graphene oxide/P25 for electrochemical detection of hydrogen peroxide

机译：MnO2 /缩小的石墨烯氧化物/ P25用于电化学检测的光学辅助合成

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摘要

In this work, we report the synthesis of MnO2/RGO (reduced graphene oxide)/P25 nanocomposites for a non-enzymatic hydrogen peroxide sensor. MnO2/RGO/P25 nanocomposites were synthesized with a photo-reduction approach and characterized by field emission scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and Raman spectroscopy. A non-enzymatic hydrogen peroxide sensor was fabricated by dropping MnO2/RGO/P25 nanocomposites on the surface of a glassy carbon electrode. Electrochemical measurements of the MnO2/RGO/P25 modified electrode were carried out on an electrochemical workstation. The as-prepared sensor exhibited high electrocatalytic activity, selectivity and stability towards the oxidation of H2O2. Under optimum conditions, the calibration curve for H2O2 determination was linear in the range from 1.0 x 10(-6) to 4.0 x 10(-3) M (R-2 = 0.999) with a detection limit of 3 x 10(-7) M (S/N = 3).
机译：在这项工作中，我们报道了用于非酶促过氧化氢传感器的MnO 2 / Rgo（氧化烯氧化物）/ p25纳米复合材料的合成。 用光还原方法合成MnO2 / Rgo / P25纳米复合材料，其特征在于现场发射扫描电子显微镜，X射线光电子光谱，傅里叶变换红外光谱和拉曼光谱。 通过在玻碳电极表面上滴下MnO2 / Rgo / P25纳米复合材料来制造非酶促过氧化氢传感器。 在电化学工作站上进行MNO2 / RGO / P25改性电极的电化学测量。 制备的传感器表现出高电催化活性，选择性和朝向H2O2氧化的选择性和稳定性。 在最佳条件下，H 2 O 2测定的校准曲线在1.0×10（-6）至4.0×10（-3）m（R-2 = 0.999）的范围内线性，检测限为3×10（-7） ）m（s / n = 3）。

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  • 来源
    《RSC Advances》 |2016年第4期|共9页
  • 作者

    Cui Shoufang; Li Yu; Deng Dongmei; Zeng Lilan; Yan Xiaoxia; Qian Jun; Luo Liqiang;

  • 作者单位

    Shanghai Univ Coll Sci Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Shanghai 200444 Peoples R China;

    Shanghai Univ Coll Sci Shanghai 200444 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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