Electrochemical Synthesis of Shape-controlled Cu-Ni Nanocomposite and its Application for Nonenzymatic Glucose Sensing at Nanomolar Level

Authors：Pang, Yuanhao; Xiao, Zhourui; Deng, Yanan; Zhou, Xueying; Wang, Yu; Yuan, Yali^*; Zhang, Yun^*

Source：Electroanalysis, 2023, 35(4).

DOI：10.1002/elan.202200374

• Electrochemical catalysis
• Non-enzyme glucose sensor
• Cu-Ni nanocomposite

The electrodeposition method was firstly applied to obtain uniform cube-shaped copper nanoparticles on conductive glass (ITO), and then a layer of tiny nickel nanoparticles. A bimetallic composite electrode (Cu-Ni/ITO), characterized by TEM, XPS and XRD, was prepared to construct the non-enzyme electrochemical glucose sensor with high catalytic activity. The catalytic performance of Cu-Ni/ITO had been greatly improved, probably due to the synergistic bimetallic catalysis effect. The electrode had a satisfactory linear response in the range of 2.5x10(-7) M to 2.6x10(-3) M, with detection limit as low as 67 nM. Besides, Cu-Ni/ITO had good anti-interference ability and reproducibility, indicating the promising application for glucose detection in practical samples.

• Institution
  y; 桂林理工大学