A novel Ni–Fe3O4@s-rGO/GCE electrode for electrochemical detection of H2O2

Kaplan, Sedef; Karateki̇n, Rukan Suna; Düdükcü, Meltem; Avci, Gulsen

doi:10.1016/j.matchemphys.2022.127051

Cited by 12 publications

(8 citation statements)

References 40 publications

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“…The sensor exhibited a high level of stability, as it demonstrated a 94.7% recovery of its initial current after 10 days. In a similar work, a non-enzymatic hydrogen peroxide sensor was made of Fe 3 O 4 , rGO, and nickel (Ni) [ 119 ]. Enhancing charge mobility was achieved by lowering the band gap of the modified Fe 3 O 4 with Ni, inducing a low detection limit of 0.2 μM.…”

Section: Sensing Applicationsmentioning

confidence: 99%

An Overview of Electrochemical Sensors Based on Transition Metal Carbides and Oxides: Synthesis and Applications

Mashhadian,

Jian,

Tian

et al. 2023

Micromachines

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Sensors play vital roles in industry and healthcare due to the significance of controlling the presence of different substances in industrial processes, human organs, and the environment. Electrochemical sensors have gained more attention recently than conventional sensors, including optical fibers, chromatography devices, and chemiresistors, due to their better versatility, higher sensitivity and selectivity, and lower complexity. Herein, we review transition metal carbides (TMCs) and transition metal oxides (TMOs) as outstanding materials for electrochemical sensors. We navigate through the fabrication processes of TMCs and TMOs and reveal the relationships among their synthesis processes, morphological structures, and sensing performance. The state-of-the-art biological, gas, and hydrogen peroxide electrochemical sensors based on TMCs and TMOs are reviewed, and potential challenges in the field are suggested. This review can help others to understand recent advancements in electrochemical sensors based on transition metal oxides and carbides.

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Section: Sensing Applicationsmentioning

confidence: 99%

An Overview of Electrochemical Sensors Based on Transition Metal Carbides and Oxides: Synthesis and Applications

Mashhadian,

Jian,

Tian

et al. 2023

Micromachines

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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 . Xiong et al synthesized cobalt oxide nanoparticles/porous carbon nanobox nanocomposites and used them as an electrode material for nonenzymatic electrochemical H 2 O 2 detection .…”

Section: Introductionmentioning

confidence: 99%

“…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 . 30 Xiong et al synthesized cobalt oxide nanoparticles/porous carbon nanobox nanocomposites and used them as an electrode material for nonenzymatic electrochemical H 2 O 2 detection. 31 Therefore, the development of efficient electrode materials to enhance electrochemical performance for H 2 O 2 detection is paramount.…”

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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“…Among these methods, electrochemistry differs from other detection technologies due to its advantages such as easy use of electrochemical methods, cost-effective operation of analytical processes, fast response systems, and time-saving features with relatively high selectivity and sensitivity [5]. There are two types of electrochemical sensor studies, enzymatic [7][8][9][10] and non-enzymatic [11][12][13][14][15]. However, although enzymatic electrochemical sensor studies have high sensitivity, they also bring many disadvantages such as operating conditions, unsuitable temperature and pH, and high cost.…”

Section: Introductionmentioning

confidence: 99%

Non‐enzymatic hydrogen peroxide sensor based on palladium‐decorated poly(thionine) modified glassy carbon electrode

Sönmez Çelebi,

Kırlak Kara

2024

J Chinese Chemical Soc

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Glassy carbon electrode was modified with palladium‐decorated conducting poly(thionine) film to develop a simple, cost‐effective, and fast amperometric sensor for the detection of H2O2. Conducting PTH film served as a porous and stable support matrix for even distribution of the Pd nanomaterials. In order to get the maximum performance from the modified electrode system, experimental conditions were optimized using chronoamperometry. The Pd/PTH@GCE electrode showed maximum performance in buffer solution at pH = 7.5 meaning it is suitable for the detection of H2O2 at physiological pH (7.4). Scanning Electron Microscopy was performed for physical characterization of the modified electrodes using pencil graphite electrodes. The active surface area for Pd/PTH‐modified GCE was calculated as 1.103 cm2. The linear concentration range was determined as 0.2–7.0 mM and its sensitivity was determined as 40.0 μA mM−1. The detection limit (LOD) of the sensor was calculated as 12.3 μM with a signal/noise ratio of 3.

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A novel Ni–Fe3O4@s-rGO/GCE electrode for electrochemical detection of H2O2

Cited by 12 publications

References 40 publications

An Overview of Electrochemical Sensors Based on Transition Metal Carbides and Oxides: Synthesis and Applications

An Overview of Electrochemical Sensors Based on Transition Metal Carbides and Oxides: Synthesis and Applications

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

Non‐enzymatic hydrogen peroxide sensor based on palladium‐decorated poly(thionine) modified glassy carbon electrode

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