A hydrogen peroxide electrochemical sensor based on Ag nanoparticles grown on ITO substrate |
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| Authors: | Xu Chun Song Xia Wang Yi Fan Zheng Rong Ma Hao Yong Yin |
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| Affiliation: | (1) Department of Chemistry, Fujian Normal University, Fuzhou, 350007, People’s Republic of China;(2) College of Chemical Engineering & Materials Science, Zhejiang University of Technology, Hangzhou, 310014, People’s Republic of China;(3) Institute of Environmental Science and Engineering, Hangzhou Dinazi University, Hangzhou, 310018, People’s Republic of China |
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| Abstract: | In this article, the Ag nanoparticles were synthesized on indium tin oxide conducting glass (ITO) substrate using the electrochemical deposition method. The morphology analysis of the deposits using scanning electron microscope (SEM) reveals that the sizes and densities of the Ag nanoparticles were tuned by varying the time of electrodeposition. The structure of the deposits was characterized by X-ray diffraction (XRD). The prepared Ag nanoparticles electrode was then applied to detect hydrogen peroxide (H2O2) in 0.01 M pH 7.0 phosphate buffer medium. The present electrochemical sensing platform exhibited good electrocatalytic activity towards the reduction of H2O2. The detection sensitivity of the sensor was 0.237 mA mM−1. This method is very simple, inexpensive, and undemanding, thus it should be extensively applied in many fields for the detection of H2O2. |
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