CoCr2O4/Graphene modified glass carbon electrode for highly dual-sensing detection of hydrogen peroxide and glucose

Kong, De-Rui; Xin, Yu-Ying; Zhang, Xian-Fa; Deng, Zhao-Peng; Huo, Li-Hua; Gao, Shan

doi:10.1016/j.apsusc.2023.158769

Cited by 9 publications

(1 citation statement)

References 53 publications

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“…Various analytical approaches are developed in detecting H 2 O 2 , which include surface-enhanced Raman spectroscopy, electrochemical detection, molecularly imprinted sensors, enzyme-linked immunoassay, photoluminescence, photoelectrochemical sensors, colorimetric detection, mass spectrometry, high-performance liquid chromatography, and colorimetric detection. − Among these, electrochemical detection has drawn tremendous attention due to its fast response, high sensitivity, portability, high reliability, better accuracy, miniaturization, low cost, and user-friendly approach. − Electrode materials are vital in electrochemical analysis to achieve an enhanced and high electrochemical performance. Kaplan et al fabricated a nonenzymatic electrochemical sensor based on nickel–iron oxide@sulfur-doped reduced graphene oxide modified glassy carbon electrodes (GCEs) to detect H 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Kokulnathan,

Wang,

Ahmed

et al. 2024

Inorg. Chem.

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Developing efficient and robust electrode materials for electrochemical sensors is critical for real-time analysis. In this paper, a hierarchical holmium vanadate/phosphorus-doped graphitic carbon nitride (HoVO 4 /P-CN) nanocomposite is synthesized and used as an electrode material for electrochemical detection of hydrogen peroxide (H 2 O 2 ). The HoVO 4 /P-CN nanocomposite exhibits superior electrocatalytic activity at a peak potential of −0.412 V toward H 2 O 2 reduction in alkaline electrolytes while compared with other reported electrocatalysts. The HoVO 4 /P-CN electrochemical platform operated under the optimized conditions shows excellent analytical performance for H 2 O 2 detection with a linear concentration range of 0.009−77.4 μM, a high sensitivity of 0.72 μA μM −1 cm −2 , and a low detection limit of 3.0 nΜ. Furthermore, the HoVO 4 /P-CN-modified electrode exhibits high selectivity, remarkable stability, good repeatability, and satisfactory reproducibility in detecting H 2 O 2 . Its superior performance can be attributed to a large specific surface area, high conductivity, more active surface sites, unique structure, and synergistic action of HoVO 4 and P-CN to benefit enhanced electrochemical activity. The proposed HoVO 4 /P-CN electrochemical platform is effectively applied to ascertain the quantity of H 2 O 2 in food and biological samples. This work outlines a promising and effectual strategy for the sensitive electrochemical detection of H 2 O 2 in real-world samples.

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Section: Introductionmentioning

confidence: 99%

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Kokulnathan,

Wang,

Ahmed

et al. 2024

Inorg. Chem.

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Nonenzymatic Glucose Sensor Based on CuO/CNTs Nanocomposites Synthesized by Diaphragm Glow Discharge Plasma

Lu,

Ma,

et al. 2024

Plasma Processes & Polymers

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In this work, the pine–needle like CuO/CNTs nanocomposites were fabricated by one‐step strategy via diaphragm glow discharge (DGD) plasma. A possible fabrication mechanism is proposed. CuO/CNTs as an electrode material for sensing glucose exhibits a low detection limit of 0.1 μM, high sensitivity of 900 μA mM−1 cm−2, wide linear range of 5.00 μm to 12.71 mM, fast response time of 1.0 s, and good selectivity. The glucose in human tears was determined, and the recovery is 104%–107% with a relative standard deviation of less than 4.55%. Compared with other synthesis methods, DGD is a simple, effective, and economic technique without platinum needle, alkali sources, copper salt precursors, and high temperature.

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The advancements of 3D-printed electrodes in electrochemistry

Munir,

Ali,

Gul

2024

Discov. Electrochem.

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CoCr2O4/Graphene modified glass carbon electrode for highly dual-sensing detection of hydrogen peroxide and glucose

Cited by 9 publications

References 53 publications

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Synergism of Holmium Orthovanadate/Phosphorus-Doped Carbon Nitride Nanocomposite: Nonenzymatic Electrochemical Detection of Hydrogen Peroxide

Nonenzymatic Glucose Sensor Based on CuO/CNTs Nanocomposites Synthesized by Diaphragm Glow Discharge Plasma

The advancements of 3D-printed electrodes in electrochemistry

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