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首页> 外文期刊>RSC Advances >Electrodeposition of nickel nanoflowers on screen-printed electrodes and their application to non-enzymatic determination of sugars
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Electrodeposition of nickel nanoflowers on screen-printed electrodes and their application to non-enzymatic determination of sugars

机译：镍纳米辊在丝网印刷电极上的电沉积及其在非酶促测定糖的应用

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摘要

In this work, the electrodeposition of nickel on screen-printed carbon electrodes was carried out. As the main novelty, a galvanostatic electrodeposition methodology (application of a constant current for a specific time) was chosen to perform the electrodeposition from a Ni(II) solution. Interestingly, these conditions were able to generate nickel nanoflowers of 160 nm all over the surface. The nickel nanoflowers showed a great electrocatalytic effect towards the oxidation of reducing sugars. After the characterization of the electrode surface and the optimization of the experimental conditions, the non-enzymatic electrochemical device was employed for the determination of reducing sugars. A linear range of 25-1000 mu M was obtained, showing good performance for the determination of sugars at low concentrations. The reproducibility was 5.5% (intraelectrode) and 6.9% (interelectrode), indicating a high precision using the same or different devices. After fabrication, the electrode is stable at least for 35 days, even using the same device to carry out measurements on different days. Real food samples such as honey and orange juice were also evaluated with the nickel nanoflower electrochemical device.
机译：在这项工作中，进行了丝网印刷碳电极上的镍的电沉积。作为主要的新颖性，选择了一种镀锌电沉积方法（施加特定时间的恒定电流）以从Ni（II）溶液中的电沉积。有趣的是，这些条件能够在表面上产生160nm的镍纳米射线。镍纳米洒水器对还原糖的氧化效果均有很大的电催化作用。在电极表面表征和实验条件的优化之后，使用非酶电化学装置用于测定还原糖。获得线性范围为25-1000μm，呈现出低浓度的糖的良好性能。再现性为5.5％（内部电极）和6.9％（电极），指示使用相同或不同器件的高精度。制造后，电极至少稳定为35天，甚至使用相同的装置在不同的日子上进行测量。还通过镍纳米辊电化学装置评估了蜂蜜和橙汁等真正的食物样品。

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  • 来源
    《RSC Advances》 |2016年第87期|共10页
  • 作者

    Perez-Fernandez Beatriz; Martin-Yerga Daniel; Costa-Garcia Agustin;

  • 作者单位

    Univ Oviedo Dept Phys &

    Analyt Chem Nanobioanal Grp 8 Julian Claveria St E-33006 Oviedo Spain;

    Univ Oviedo Dept Phys &

    Analyt Chem Nanobioanal Grp 8 Julian Claveria St E-33006 Oviedo Spain;

    Univ Oviedo Dept Phys &

    Analyt Chem Nanobioanal Grp 8 Julian Claveria St E-33006 Oviedo Spain;

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  • 正文语种 eng
  • 中图分类 化学;
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