A ultrasensitive nonenzymatic glucose sensor based on Cu2O polyhedrons modified Cu electrode

• Published in: Chinese chemical letters Vol. 23; no. 8; pp. 953 - 956
• Main Authors: Luo, Zhi Jun, Han, Ting Ting, Qu, Ling Ling, Wu, Xiang Yang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2012; School of The Environment,Jiangsu University,Zhenjiang 212013,China%School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang 212013,China
• Subjects: Cuprous oxide film; Electrocatalytic oxidation; Glucose; Nonenzymatic sensor; 修改; 基础; 多面体; 氧化亚铜; 电催化活性; 葡萄糖传感器; 超灵敏; 铜电极; Cuprous oxide film; Nonenzymatic sensor; Electrocatalytic oxidation; Glucose
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2012.06.003

A novel nonenzymatic glucose sensor was successfully fabricated based on the Cu2O polyhedrons covered Cu foil. The Cu2O polyhedrons covered Cu foil was constructed via a facile, low-cost and larger scale producible method. The Cu2O polyhedrons covered Cu foil can be directly used as the working electrode of nonenzymatic glucose sensor, which present good stability and flexibility. The results indicated that the Cu2O polyhedrons modified Cu electrode （Cu2O/Cu electrode） showed high electrocatalytic activity for the oxidation of glucose in alkaline solution. There are two linear regions of glucose concentration for the glucose sensor based on Cu2O/Cu electrode, respectively in 10μmol/L to 0.53 mmol/L （sensitivity： 3029.33 μA （mmol/ L）^-1 cm^-2） and in 0.53-7.53 mmol/L （sensitivity： 728.67 μA （rnmol/L）^-1 cm^-2）.