A novel nanohybrid of cobalt oxide-sulfide nanosheets deposited three-dimensional foam as efficient sensor for hydrogen peroxide detection

Mai, L.N.T.; Bui, Quoc-Bao; Bạch, Long Giang; Nhac-Vu, H.-T.

doi:10.1016/j.jelechem.2019.113757

Cited by 11 publications

(4 citation statements)

References 52 publications

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“…The reversible transition between Co 3 O 4 and CoOOH was attributed to the redox peak pair I/III, while the further conversion between CoOOH and CoO 2 was ascribed to another redox peak pair II/IV [68]. These two reversible reactions can be described as follows [69]- [71]:…”

Section: Resultsmentioning

confidence: 99%

“…Several studies have emphasized the importance of a high pH level in the buffer solution for efficient catalysis of H 2 O 2 by transition metal oxide catalysts during the electrochemical process. This leads to an increased cathodic peak current density [69], [75]. Typically, a 0.1 M NaOH or KOH solution suffices to ensure a favorable catalytic response.…”

Section: Resultsmentioning

confidence: 99%

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Non-Enzymatic Co₃O₄ Nanostructure-Based Electrochemical Sensor for H₂O₂ Detection

Mizers,

Gerbreders,

Krasovska

et al. 2023

Latvian Journal of Physics and Technical Sciences

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This article describes the synthesis of nanostructured cobalt oxide on iron wires and its application for the detection of hydrogen peroxide as working electrode for non-enzymatic electrochemical sensor. Cobalt oxide was obtained by the hydrothermal synthesis method using chloride and acetate anions. The resulting nanostructured coating obtained from the chloride precursor is a uniform homogeneous porous network of long nanofibers assembled into regular honeyсomb-like formations. In the case of an acetate precursor, instead of nanofibers, petal-like nanostructures assembled into honeycomb agglomerates are observed. The structure, surface, and composition of the obtained samples were studied using field-emission scanning electron microscopy along with energy-dispersive spectroscopy and X-ray diffractometry. The resultant nanostructured specimens were utilized to detect H2O2 electrochemically through cyclic voltammetry, differential pulse voltammetry, and i-t measurements. A comparative research has demonstrated that the nanostructures produced from the chloride precursor exhibit greater sensitivity to H2O2 and have a more appropriate morphology for designing a nanostructured sensor. A substantial linear correlation between the peak current and H2O2 concentration within the 20 to 1300 μM range was established. The Co3O4 electrode obtained exhibits a sensitivity of 505.11 μA·mM−1, and the electroactive surface area is calculated to be 4.684 cm2. Assuming a signal-to-noise ratio of 3, the calculated limit of detection is 1.05 μM. According to the interference study, the prevalent interfering agents, such as ascorbic acid, uric acid, NaCl, and glucose, do not influence the electrochemical reaction. The obtained results confirm that this sensor is suitable for working with complex analytes.The actual sample assessment demonstrated a recovery rate exceeding 95 %.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Non-Enzymatic Co₃O₄ Nanostructure-Based Electrochemical Sensor for H₂O₂ Detection

Mizers,

Gerbreders,

Krasovska

et al. 2023

Latvian Journal of Physics and Technical Sciences

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“…In a recent work, Mai et al successfully prepared a highly sensitive and stable H

sensor by direct growth of heterostructure of cobalt oxide-sulfide nanosheets in three-dimensional foam. The structural conformation of this sensor would be key to improve the catalytic performance for the detection of peroxide, resulting in a device with a sensitivity of 0.059 mA·mM

·cm

, a wide detection range of 2 to 954

M, and a limit of low detection of 0.890

M [ 76 ].…”

Section: Materials Used For Electrocatalytic Hydrogen Peroxide Senmentioning

confidence: 99%

Nanostructures in Hydrogen Peroxide Sensing

Trujillo

Barraza

Zamora

et al. 2021

Sensors

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In recent years, several devices have been developed for the direct measurement of hydrogen peroxide (), a key compound in biological processes and an important chemical reagent in industrial applications. Classical enzymatic biosensors for have been recently outclassed by electrochemical sensors that take advantage of material properties in the nano range. Electrodes with metal nanoparticles (NPs) such as Pt, Au, Pd and Ag have been widely used, often in combination with organic and inorganic molecules to improve the sensing capabilities. In this review, we present an overview of nanomaterials, molecules, polymers, and transduction methods used in the optimization of electrochemical sensors for sensing. The different devices are compared on the basis of the sensitivity values, the limit of detection (LOD) and the linear range of application reported in the literature. The review aims to provide an overview of the advantages associated with different nanostructures to assess which one best suits a target application.

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“…Hydrogen peroxide (H 2 O 2 ) is an important chemical not only for industrial and everyday use as bleaches and disinfectants but also for regulating various metabolisms in biological systems such as cellular signaling, oxidative stress, aging, and cancer growth. − All of these biological functions depend sensitively on the intracellular concentration of H 2 O 2 , which typically ranges from 10 nM to 1 μM. , Therefore, sensitive detection of H 2 O 2 in the nano- to micromolar range is critical for health monitoring and disease diagnosis. While enzyme-based electrochemical sensors have been developed and clinically used for H 2 O 2 detection, their high cost and low thermal and chemical stability limit their large-scale production and diagnostic applications. − Therefore, tremendous efforts have been devoted to developing inorganic electrocatalysts for H 2 O 2 detection in the past few years. − However, to date, most of the existing enzyme-free electrochemical sensors either require expensive precious metals or have limited sensitivity (Table and Table S1, Supporting Information). Therefore, low-cost and highly sensitive H 2 O 2 electrochemical sensors are urgently needed.…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive Detection of Hydrogen Peroxide Using Bi₂Te₃ Electrochemical Sensors

Zhao

Zhou

Zhang

2021

ACS Appl. Mater. Interfaces

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Electrochemical sensors, with high accuracy, good selectivity, and linear response, have been widely used for environmental protection, health monitoring, and disease treatment. However, to date, these sensors still have limit sensitivity or otherwise require the use of high-cost materials such as noble metals and enzymes. Here, we report a novel electrochemical sensor using a topological insulator, Bi2Te3. Through liquid-phase exfoliation, we prepared nano- and microflakes of Bi2Te3 and measured their performance in hydrogen peroxide sensing via electrocatalytic reduction processes. Our devices exhibit a sensitivity of ∼4900 μA mM–1 cm–2 and a detection limit of ∼10–8 molar, both of which are superior to typical noble metal-based electrochemical sensors. Through electrochemical analysis and microkinetic simulations, we extracted the kinetic parameters and gained insights into the reaction mechanism. We attribute the ultrahigh sensitivity to the facile electron transfer at the Bi2Te3–aqueous solution interface.

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A novel nanohybrid of cobalt oxide-sulfide nanosheets deposited three-dimensional foam as efficient sensor for hydrogen peroxide detection

Cited by 11 publications

References 52 publications

Non-Enzymatic Co₃O₄ Nanostructure-Based Electrochemical Sensor for H₂O₂ Detection

Non-Enzymatic Co₃O₄ Nanostructure-Based Electrochemical Sensor for H₂O₂ Detection

Nanostructures in Hydrogen Peroxide Sensing

Ultrasensitive Detection of Hydrogen Peroxide Using Bi₂Te₃ Electrochemical Sensors

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A novel nanohybrid of cobalt oxide-sulfide nanosheets deposited three-dimensional foam as efficient sensor for hydrogen peroxide detection

Cited by 11 publications

References 52 publications

Non-Enzymatic Co3O4 Nanostructure-Based Electrochemical Sensor for H2O2 Detection

Non-Enzymatic Co3O4 Nanostructure-Based Electrochemical Sensor for H2O2 Detection

Nanostructures in Hydrogen Peroxide Sensing

Ultrasensitive Detection of Hydrogen Peroxide Using Bi2Te3 Electrochemical Sensors

Contact Info

Product

Resources

About

Non-Enzymatic Co₃O₄ Nanostructure-Based Electrochemical Sensor for H₂O₂ Detection

Non-Enzymatic Co₃O₄ Nanostructure-Based Electrochemical Sensor for H₂O₂ Detection

Ultrasensitive Detection of Hydrogen Peroxide Using Bi₂Te₃ Electrochemical Sensors