期刊
MICROCHIMICA ACTA
卷 169, 期 3-4, 页码 361-365出版社
SPRINGER WIEN
DOI: 10.1007/s00604-010-0356-7
关键词
Modified electrode; Non-enzymatic sensors; Silver nanoparticles; Zinc oxide; Hydrogen peroxide
资金
- National Natural Science Foundation of China [20875076]
A strategy to fabricate a hydrogen peroxide (HP) sensor is developed by electrodepositing silver nanoparticles (Ag NPs) on a modified glassy carbon electrode (GCE) with a zinc oxide (ZnO) film. The Ag NPs/ZnO/GCE has been characterized by scanning electron microscopy, cyclic voltammetry, and chronoamperometry. It has been found that the Ag NPs synthesized in the presence of ZnO film provide an electrode with enhanced sensitivity and excellent stability. The sensitivity to HP is enhanced 3-fold by using Ag NPs/ZnO/GCE compared to Ag NPs/GCE. The HP sensor exhibits good linear behavior in the concentration range 2 A mu M to 5.5 mM for the quantitative analysis of HP with a detection limit of 0.42 A mu M (S/N = 3).
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