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Sensing hydrogen peroxide with a glassy carbon electrode modified with silver nanoparticles, AlOOH and reduced graphene oxide
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  • 作者:Ziyin Yang ; Chengcheng Qi ; Xiaohui Zheng ; Jianbin Zheng
  • 关键词:Transmission electron microscopy ; X ; ray diffraction ; Cyclic voltammetry ; Nanomaterial ; Chitosan ; Boehmite ; Nonenzymatic sensor
  • 刊名:Microchimica Acta
  • 出版年:2016
  • 出版时间:March 2016
  • 年:2016
  • 卷:183
  • 期:3
  • 页码:1131-1136
  • 全文大小:845 KB
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  • 作者单位:Ziyin Yang (1)
    Chengcheng Qi (1)
    Xiaohui Zheng (1)
    Jianbin Zheng (1)

    1. Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University, Xi’an, Shaanxi, 710069, China
  • 刊物类别:Chemistry and Materials Science
  • 刊物主题:Chemistry
    Analytical Chemistry
    Inorganic Chemistry
    Physical Chemistry
    Characterization and Evaluation Materials
    Monitoring, Environmental Analysis and Environmental Ecotoxicology
  • 出版者:Springer Wien
  • ISSN:1436-5073
文摘
A nanocomposite consisting of silver nanoparticles (AgNPs), AlOOH and reduced graphene oxide (rGO) was prepared where γ-AlOOH was employed to modify rGO to obtain a platform for the growth of dispersed AgNPs. A glassy carbon electrode was modified with the nanocomposite in a chitosan matrix to obtain a nonenzymatic sensor for H2O2 with a working voltage of typically -0.3 V (vs. Ag/AgCl). The morphology and composition of the nanocomposites were characterized by transmission electron microscopy, Raman spectra, X-ray spectrometer and X-ray diffraction. Cyclic voltammetry revealed a wide linear range (5.0 μM to 4.2 mM), a sensitivity of 115.4 μA · mM−1 · cm−2 and a low detection limit (1.8 μM).

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