Fabrication of MgCo2O4@MnO2 nanocomposite on nickel foam with a core-shell structure and its application for glucose measurement

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-08-13 DOI:10.1007/s43153-024-00501-8

Jie Zhang, Jiasheng Xu

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Abstract

The core-shell structured nanomaterial of MgCo₂O₄@MnO₂ on nickel foam (MCMNA/NF) was synthesized via a two-step hydrothermal method. It can be used as a self-supported electrode, which was constructed to an electrochemical sensor for sensitive measurement of glucose. The core-shell structure with a MnO₂ shell significantly enhances the material’s specific surface area and accelerates the electron transport process. Electrochemical catalytic oxidation tests were conducted on core-shell structured MCMNA/NF nanocomposite as a working electrode. The sensitivity is determined to be 9.37 μA·mM⁻¹·cm⁻² and the detection limit is 0.02 mM. These test results demonstrate that the material exhibits excellent stability and selectivity as a glucose sensor. The synergistic effect of MgCo₂O₄ and MnO₂ can effectively promote the application performance of the electrode materials. The MgCo₂O₄@MnO₂ glucose sensor material also exhibits exceptional resistance to interference, demonstrating no interference from Urea, Citric acid (CA), Ascorbic acid (AA), or specific inorganic salts during blood glucose detection.

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在泡沫镍上制备具有核壳结构的 MgCo2O4@MnO2 纳米复合材料及其在葡萄糖测量中的应用

通过两步水热法合成了泡沫镍上的 MgCo2O4@MnO2 核壳结构纳米材料（MCMNA/NF）。它可用作自支撑电极，并被构建成一种用于灵敏测量葡萄糖的电化学传感器。带有 MnO2 外壳的核壳结构显著提高了材料的比表面积，并加速了电子传输过程。以核壳结构的 MCMNA/NF 纳米复合材料为工作电极，进行了电化学催化氧化试验。灵敏度为 9.37 μA-mM-1-cm-2，检测限为 0.02 mM。这些测试结果表明，该材料作为葡萄糖传感器具有出色的稳定性和选择性。MgCo2O4 和 MnO2 的协同作用可有效提高电极材料的应用性能。MgCo2O4@MnO2 葡萄糖传感器材料还具有优异的抗干扰性，在血糖检测过程中不会受到尿素、柠檬酸（CA）、抗坏血酸（AA）或特定无机盐的干扰。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.