Fast synthesis of hierarchical cuprous oxide for nonenzymatic glucose biosensors with enhanced sensitivity

作者：He, Jiacheng; Jiang, Yulin; Peng, Juan; Li, Chengcheng; Yan, Bingdong; Wang, Xiaohong^*

来源：Journal of Materials Science, 2016, 51(21): 9696-9704.

DOI：10.1007/s10853-016-0202-3

• REDUCED GRAPHENE OXIDE
• AMPEROMETRIC HYDROGEN-PEROXIDE
• CU2O NANOCUBES
• MICROCRYSTALS
• NANOSPHERES
• IMPROVEMENT
• SENSORS
• GROWTH
• FIELD

Highly defective hierarchical cuprous oxide was synthesized through a rapid and facile route. The morphology and structure of nanourchin cuprous oxide was characterized by transmission electron microscope, field emission-scanning electron microscope, X-ray diffraction, and Raman spectroscopy analyses. Electrochemical performance was investigated by cyclic voltammetry and amperometric response measurements. The biosensor fabricated with cuprous oxide exhibited excellent properties at a potential of 0.45 V, good linear range of 18.75-1089 mu M, detection limit of 18.5 mu M (S/N = 3), and a high sensitivity of 1231.7 mu A mM(-1) cm(-2). The reinforced performance of cuprous oxide was attributed to the special 3D hierarchical structure of the material and the high concentrations of defects. A possible mechanism was also deduced.

• 出版日期2016-11
• 单位宁夏大学; 海南大学