Hydrogen peroxide sensor based on glassy carbon electrode modified with β-manganese dioxide nanorods
作者： Ai-Jun Wang , Pei-Pei Zhang , Yong-Fang Li , Jiu-Ju Feng , Wen-Ju Dong
DOI: 10.1007/S00604-011-0650-Z
关键词: Detection limit 、 Electrochemistry 、 Materials science 、 Catalysis 、 Cyclic voltammetry 、 Scanning electron microscope 、 Nanorod 、 Hydrogen peroxide 、 Inorganic chemistry 、 Manganese
摘要: A novel sensor for hydrogen peroxide (H2O2) was fabricated using β-MnO2 nanorods on a glassy carbon electrode (GCE). The were obtained by hydrothermal method and characterized scanning electron microscopy X-ray diffraction. Cyclic voltammetry used to evaluate the electrochemical performance of modified GCE. exhibits excellent catalytic activity toward oxidation H2O2 displays rather wide linear range (from 2.5 μM 42.9 mM), high sensitivity (21.74 μA·mM−1), low detection limit (2.45 μM at an S/N 3), response time <5 s.
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