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首页> 外文期刊>International Journal of Electrochemical Science >Simple and Cost-effective Synthesis of Co3O4 Modified GCE Electrode for C6H6O Detection with Unique Lamellar Structure
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Simple and Cost-effective Synthesis of Co3O4 Modified GCE Electrode for C6H6O Detection with Unique Lamellar Structure

机译：具有成本效益的Co 3 O 4 修饰的GCE电极的合成方法，用于C 6 H 6 O的检测独特的层状结构

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摘要

Herein, we present a simple and cost-effective strategy to prepare Co3O4 modified glassy carbonelectrode (Co3O4/GCE). The unique lamellar structure of Co3O4 is prepared by a hydrothermal processand characterized by XRD and SEM. Then, the as-prepared Co3O4/GCE is utilized for C6H6Odetection and electrochemical performance is measured by cyclic voltammetry and electrochemicalimpedance spectroscopy. The electrochemical measurements are used to characterize the electrontransport at the solution-electrode interface. Through the use of square wave voltammetry, theelectrochemical response of C6H6O on Co3O4 modified was significantly increased in 0.1 M phosphatebuffer solution (pH 5.8). The proposed electrode has shown a linear relationship in the concentrationrange of 3.3 μM to 33 μM, with a C6H6O detection limit of 2.03×10-6 M and sensitivity of 0.67 μAμM-1. Moreover, the as-prepared Co3O4 has shown excellent repeatability and stability, which make itan ideal choice for the replacement of other costly electrode systems.
机译：在这里，我们提出了一种简单且具有成本效益的策略来制备Co3O4改性玻璃碳电极（Co3O4 / GCE）。 Co3O4的独特层状结构是通过水热法制备的，并通过XRD和SEM表征。然后，将所制备的Co3O4 / GCE用于C6H6O检测，并通过循环伏安法和电化学阻抗谱法测量电化学性能。电化学测量用于表征溶液-电极界面处的电子传输。通过使用方波伏安法，在0.1 M磷酸盐缓冲溶液（pH 5.8）中，C6H6O对修饰的Co3O4的电化学响应显着增加。所提出的电极在浓度范围为3.3μM至33μM之间显示出线性关系，C6H6O的检出限为2.03×10-6 M，灵敏度为0.67μAμM-1。此外，所制备的Co3O4具有出色的可重复性和稳定性，这使其成为替代其他昂贵电极系统的理想选择。

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