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Abstract Ag@SiO2@Ag core-shell structure nanomaterial was synthesized by a simple one-step method, and applied to electrochemical sensing detection of H2O2. The results of transmission electron microscope (TEM), X-ray diffraction (XRD)… Click to show full abstract
Abstract Ag@SiO2@Ag core-shell structure nanomaterial was synthesized by a simple one-step method, and applied to electrochemical sensing detection of H2O2. The results of transmission electron microscope (TEM), X-ray diffraction (XRD) and energy dispersive spectrometry (EDS) verified the morphology, structure and composition of Ag@SiO2@Ag nanomaterial. The current response of the Ag@SiO2@Ag sensor was linearly toward to concentration of H2O2 between 0.005 mM and 24.0 mM with a detection limit of 1.7 μM at a signal-to-noise ratio of 3. The sensitivity was 56.07 μA mM−1 cm−2. The Ag@SiO2@Ag/GCE exhibited wide linear range and high sensitivity for electrochemical detection of H2O2.
Journal Title: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Year Published: 2017
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