Journal ArticleDOI
Hydrogen peroxide sensor based on glassy carbon electrode modified with β-manganese dioxide nanorods
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TLDR
In this article, a novel sensor for hydrogen peroxide (H2O2) was fabricated using β-MnO2 nanorods on a glassy carbon electrode (GCE).Abstract:
A novel sensor for hydrogen peroxide (H2O2) was fabricated using β-MnO2 nanorods on a glassy carbon electrode (GCE). The nanorods were obtained by a hydrothermal method and characterized by scanning electron microscopy and X-ray diffraction. Cyclic voltammetry was used to evaluate the electrochemical performance of the modified GCE. The sensor exhibits excellent catalytic activity toward the oxidation of H2O2 and displays a rather wide linear range (from 2.5 μM to 42.9 mM), high sensitivity (21.74 μA·mM−1), a low detection limit (2.45 μM at an S/N of 3), and a response time of <5 s.read more
Citations
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Environmental Applications of Three-Dimensional Graphene-Based Macrostructures: Adsorption, Transformation, and Detection
TL;DR: The basic structural features of 3D GBM, including its large surface area, which enhances the opportunity to contact pollutants, and its well-defined porous structure, enable it to be an ideal material for pollutant management due to its excellent capabilities and easy recyclability.
Journal ArticleDOI
Three‐Dimensional Graphene Network Composites for Detection of Hydrogen Peroxide
TL;DR: A three-dimensional graphene network prepared by CVD is used as a template to synthesize various composites, which are further used as electrodes for electrochemical sensors, which exhibit a low detection limit, quick response time, and wide linear range toward the detection of H2O2.
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Genetically Engineered Phage-Templated MnO2 Nanowires: Synthesis and Their Application in Electrochemical Glucose Biosensor Operated at Neutral pH Condition.
TL;DR: The as-synthesized M13-E4@MnO2 NWs could catalyze the electro-oxidation of H2O2 at neutral pH and are promising for applications in electrocatalysis, electrochemical sensor, and supercapacitor.
Journal ArticleDOI
Uniform manganese hexacyanoferrate hydrate nanocubes featuring superior performance for low-cost supercapacitors and nonenzymatic electrochemical sensors
TL;DR: The manganese hexacyanoferrate hydrate nanocube electrode shows a good rate capability and cycling stability for electrochemical capacitors and demonstrates a sensitive electrochemical response to hydrogen peroxide in buffer solutions with a high selectivity.
Journal ArticleDOI
Highly sensitive p-nitrophenol chemical sensor based on crystalline α-MnO2 nanotubes
TL;DR: In this article, a p-nitrophenol (p-NP) amperometric chemical sensor based on crystalline α-MnO2 nanotubes was successfully synthesized using a simple hydrothermal treatment of potassium permanganate and concentrated hydrochloric acid.
References
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Journal ArticleDOI
Shape-controlled synthesis of MnO2 nanostructures with enhanced electrocatalytic activity for oxygen reduction
TL;DR: In this paper, three types of MnO2 nanostructures, viz., microsphere/nanosheet core−corona hierarchical architectures, one-dimensional (1D) nanorods, and nanotubes, have been synthesized employing a simple hydrothermal process.
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Carbon-Supported Manganese Oxide Nanoparticles as Electrocatalysts for the Oxygen Reduction Reaction (ORR) in Alkaline Medium: Physical Characterizations and ORR Mechanism
TL;DR: In this paper, the authors investigated the oxygen reduction reaction (ORR) kinetics and mechanism of Me-MnOx/C (Me = Ni, Mg) electrocatalysts prepared by chemical deposition of manganese oxide nanoparticles on carbon.
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Accuracy of Determination of Hydrogen Peroxide by Cerate Oxidimetry
E. C. Hurdis,Hendrik. Romeyn +1 more
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A novel nonenzymatic hydrogen peroxide sensor based on MnO2/graphene oxide nanocomposite.
TL;DR: In this article, a new electrocatalyst, MnO2/graphene oxide hybrid nanostructure was successfully synthesized for the nonenzymatic detection of H2O2.
Journal ArticleDOI
Electrocatalytic activity of manganese oxides prepared by thermal decomposition for oxygen reduction
TL;DR: In this article, the oxygen reduction reaction (ORR) was studied in KOH electrolyte on manganese oxides supported on Vulcan carbon (Mn y O x /C).