Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 13, Issue 10, Pages 5449-5455Publisher
SPRINGER
DOI: 10.1007/s11051-011-0532-7
Keywords
Silver nanoparticles; Hydrogen peroxide; Electrochemical deposition; Amperometric detection; Sensor fabrication
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Funding
- National Natural Science Foundation of China [20873020]
- Zhejiang Provincial Natural Science Foundation of China [Y4110499]
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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 (H(2)O(2)) in 0.01 M pH 7.0 phosphate buffer medium. The present electrochemical sensing platform exhibited good electrocatalytic activity towards the reduction of H(2)O(2). 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 H(2)O(2).
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