将镍泡沫支撑的 CuO/Co3O4/r-GO 用作非酶葡萄糖传感器和高性能超级电容器的电极材料

IF 8.9 2区 工程技术 Q1 ENERGY & FUELS Journal of energy storage Pub Date : 2024-11-18 DOI:10.1016/j.est.2024.114603
Bairui Tao , Xiaoyan Feng , Fengjuan Miao
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引用次数: 0

摘要

为了解决医疗发展中的葡萄糖检测问题和满足对新型储能器件的迫切需求,本文提出了一种适合葡萄糖传感和电容特性的新材料。通过水热法将 Co3O4 纳米粒子沉积到集成了 r-GO 的泡沫镍上,然后用电镀法合成 CuO 纳米粒子,制备出了传感器。传感器的检测范围为 0.3-11.3 mM。传感器的灵敏度为 1000.3 μA mM-1 cm-2,表明其对分析物浓度变化的反应灵敏。在电化学测试系统中,信噪比(SNR)通常表示有效电流信号与背景噪声的相对强度,反映了测量的准确性和可靠性。当信噪比为 3 时,最低检测限为 0.431 μM,突出了其在背景噪声中可靠检测低浓度分析物的能力。根据电化学工作站测试,该传感器具有很强的稳定性。此外,当电流密度为 2 Ag-1 时,比电容为 660.5 Fg-1。同时,我们还探讨了该装置的循环稳定性,5000 次循环后,其比电容仍能保持 92.3%,显示出其显著的长期稳定性。此外,所制备的纳米复合材料还能点亮红色 LED 灯。结果表明,合成的 CuO/Co3O4/r-GO/NF 电极可用于电化学葡萄糖传感和超级电容器,作为一种多功能材料在医疗、食品、电子、交通和能源等领域发挥着重要作用,为多种应用提供了关键技术支撑。
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Nickel foam supported CuO/Co3O4/r-GO is used as electrode material for non-enzymatic glucose sensors and high performance supercapacitors
In order to solve the problem of glucose detection in medical development and meet the urgent demand for new energy storage devices, this paper proposes a new material suitable for glucose sensing and capacitive properties. The sensor was fabricated by depositing Co3O4 nanoparticles onto nickel foam with integrated r-GO via the hydrothermal method, followed by the synthesis of CuO nanoparticles using electroplating. The detection range of the sensor is 0.3–11.3 mM. The sensor's sensitivity is 1000.3 μA mM−1 cm−2, indicating its responsiveness to changes in analyte concentration. In electrochemical test systems, Signal-to-Noise Ratio (SNR) usually represents the relative intensity of the effective current signal and the background noise, reflecting the accuracy and reliability of the measurement. When the SNR is three, the minimum detection limit is 0.431 μM, highlighting its ability to reliably detect analytes at low concentrations amidst background noise. According to electrochemical workstation tests, the sensor demonstrates robust stability. Furthermore, the electrode material proves suitable for asymmetric supercapacitor devices, when the current density is 2 Ag−1, the specific capacitance is 660.5 Fg−1. At the same time, we also explore the cyclic stability of the device, which can retain 92.3 % of its initial specific capacitance after 5000 cycles, showing its remarkable long-term stability. In addition, the prepared nanocomposites can also light the red LED light. The results show that the synthesized CuO/Co3O4/r-GO/NF electrode can be used for electrochemical glucose sensing and supercapacitors, and plays an important role as a multi-functional material in the fields of medical, food, electronics, transportation and energy, providing key technical support for a variety of applications.
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来源期刊
Journal of energy storage
Journal of energy storage Energy-Renewable Energy, Sustainability and the Environment
CiteScore
11.80
自引率
24.50%
发文量
2262
审稿时长
69 days
期刊介绍: Journal of energy storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage developments worldwide.
期刊最新文献
Urea-aided phase change thermal energy storage performance regulation for thermal management A novel photovoltaic-thermoelectric hybrid system with an anisotropic shape-stale phase change composites Nickel foam supported CuO/Co3O4/r-GO is used as electrode material for non-enzymatic glucose sensors and high performance supercapacitors Multifunctional cu-Cu3P heterojunction embedded in hierarchically porous carbon nanofibers to strengthen adsorption and catalytic effects based on built-in electric field for liS cell Nickel‑cobalt oxide nanowires with oxygen vacancies supported on CVD graphene networks for all-solid-state asymmetric supercapacitors
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