A novel electrochemical ascorbic acid sensor based on branch-trunk Ag hierarchical nanostructures

作者：Zhang, Yan; Liu, Peng; Xie, Shilei; Chen, Meiqiong; Zhang, Min; Cai, Zhiquan; Liang, Ruifang; Zhang, Yuming; Cheng, Faliang^*

来源：Journal of Electroanalytical Chemistry, 2018, 818: 250-256.

DOI：10.1016/j.jelechem.2018.04.007

• Branch-trunk Ag hierarchical nanostructure
• Ascorbic acid
• Electrochemical sensor

Novel branch-trunk Ag hierarchical nanostructures were fabricated by hydrothermal process combined with microwave-assisted synthesis. Te nanowires prepared by hydrothermal process were used as template. And then the branch-truck Ag hierarchical nanostructures were constructed on Te nanowires via galvanic replacement reaction with the Te nanowires as the sacrifice temple with microwave-assisted synthesis method. We further investigated the potential application of the obtained hierarchical nanostructures as sensors for the electro-chemical analysis of ascorbic acid. Results showed that the as-prepared sensors had a wide linear range of 0.17 mu M to 1.80 mM (R = 0.999) and a detection limit of approximately 0.06 mu M (S/N = 3). These indicated that the branch-trunk Ag hierarchical nanostructures were excellent candidate materials for sensing applications.

• 出版日期2018-6-1
• 单位东莞理工学院