Abstract 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 electrochemical analysis of ascorbic acid. Results showed that the as-prepared sensors had a wide linear range of 0.17 μM to 1.80 mM (R = 0.999) and a detection limit of approximately 0.06 μM (S/N = 3). These indicated that the branch-trunk Ag hierarchical nanostructures were excellent candidate materials for sensing applications.

中文翻译：

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一种基于枝干银分级纳米结构电极的新型电化学抗坏血酸传感器

摘要 采用水热法结合微波辅助合成技术制备了新型的枝干银分级纳米结构。以水热法制备的Te纳米线为模板。然后通过电置换反应在Te纳米线上构建支车Ag分级纳米结构，Te纳米线作为牺牲寺庙，采用微波辅助合成方法。我们进一步研究了所获得的分级纳米结构作为抗坏血酸电化学分析传感器的潜在应用。结果表明，所制备的传感器具有 0.17 μM 至 1.80 mM (R = 0.999) 的宽线性范围和大约 0.06 μM (S/N = 3) 的检测限。