【摘要】 通过水热法合成了Ag@Co₂O₃核壳结构纳米球。通过在GCE上修饰Ag@Co₂O₃核壳结构纳米球,构建出了一种新型无酶肼（N₂H₄）电化学传感器。使用扫描电镜和能谱仪对Ag@Co₂O₃的形貌和化学组成进行了表征。构建的传感器对N₂H₄的氧化有良好的催化作用。Ag@Co₂O₃/GCE检测N₂H₄的线性范围是5.5×10^-6～0.87mol·L^-1,检出限是1.8×10^-6 mol·L^-1。建立了一种检测N₂H₄的新方法,并能拓展核壳结构纳米材料的应用。更多还原

【Abstract】 Ag@Co₂O₃ core-shell nano-spheres were synthesized by solvent heating method. A novel non-enzymatic hydrazine chemical sensor was constructed by modifying Ag@Co₂O₃ core-shell nano-spheres on GCE. The morphology and chemical constitution of the Ag@Co₂O₃ core and shell were characterized by scanning electron microscopy and energy dispersive spectroscopy. This hydrazine sensor was fabricated to catalyze the oxidation of hydrazine. The linear range of the hydrazine was 5.5× 10^-6～0.87 mol·L^-1, and the detection limit was 1.8× 10^-6 mol·L^-1. This experiment provides a simple method for the detection of hydrazine and can expand the application of core-shell structure nanomaterials.更多还原