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首页> 外文期刊>Advanced Functional Materials >A Simple and Innovative Route to Prepare a Novel Carbon Nanotube/Prussian Blue Electrode and its Utilization as a Highly Sensitive H_2O_2 Amperometric Sensor
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A Simple and Innovative Route to Prepare a Novel Carbon Nanotube/Prussian Blue Electrode and its Utilization as a Highly Sensitive H_2O_2 Amperometric Sensor

机译：一种简单且创新的方法来制备新型碳纳米管/普鲁士蓝电极并将其用作高灵敏度H_2O_2安培传感器

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摘要

The utilization of iron-based species (mainly metallic iron, hematite and magnetite) encapsulated into multi-walled carbon nanotubes (CNTs) as reactants in an electrochemical synthesis is reported for the first time in this work. Prussian blue (PB) is electrosynthesized in a heterogeneous reaction between ferricyanide ions in aqueous solution and the iron-species encapsulated into CNTs, resulting in novel CNT/PB paste electrodes. This innovative preparation route produces an intimate contact between the PB and the CNTs, which improves the stability and redox properties of PB. The PB formation and the chemical interaction between the PB and the CNTs are confirmed by Raman spectroscopy. The electrode is employed as a hydrogen peroxide amperometric sensor, resulting in a very low limit of detection (1.94 × 10~(-8) mol L~(-1)) and very high sensitivity (15.3 A cm~(-2) M~(-1)).
机译：这项工作首次报道了封装在多壁碳纳米管（CNTs）中的铁基物质（主要是金属铁，赤铁矿和磁铁矿）作为反应物的利用。普鲁士蓝（PB）通过水溶液中的铁氰化物离子与封装在CNT中的铁物种之间的异质反应进行电合成，从而形成新颖的CNT / PB糊状电极。这种创新的制备方法可在PB与CNT之间产生紧密接触，从而改善PB的稳定性和氧化还原性能。通过拉曼光谱证实了PB的形成以及PB与CNT之间的化学相互作用。该电极用作过氧化氢安培传感器，导致极低的检测极限（1.94×10〜（-8）mol L〜（-1））和极高的灵敏度（15.3 A cm〜（-2）M 〜（-1））。

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  • 来源
    《Advanced Functional Materials》 |2009年第24期|3980-3986|共7页
  • 作者

    Edson Nossol; Aldo J.G. Zarbin;

  • 作者单位

    Departamento de Quimica Universidade Federal do Parana (UFPR) CP 19081, CEP 81531-990, Curitiba-PR (Brazil);

    Departamento de Quimica Universidade Federal do Parana (UFPR) CP 19081, CEP 81531-990, Curitiba-PR (Brazil);

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