纳米碳管电极的制备与电化学检测性能研究

纳米碳管由于其独特的物理和化学性能及广阔的应用前景而备受关注,其相关研究涉及到众多领域1￣3]。在电化学分析领域,与其它碳电极材料相比,纳米碳管电极具有较大的电极表面积和较高的电子传递速率,其使用能增大响应电流、降低检出限,是目前电化学分析电极中一个十分引人注目

Preparation and Electrochemical Detection Property of Carbon Nanotubes Electrodes

Under the assistant effect of sulfur, carbon nanotubes electrodes were prepared on the end of tungsten strings directly through microwave plasma chemical vapor deposition. And the electrochemical behavior of CuSO₄ at the carbon nanotubes electrodes was investigated. Compared to the graphite electrode, carbon nanotubes electrodes had better electrochemical behavior for the analysis of Cu²⁺. Different electrodes prepared under the same condition showed good consistency of electrochemical detection property. And because carbon nanotubes were synthesized directly on the end of tungsten strings, the results of long-term stability experiments demonstrated that the carbon nanotubes electrodes had stable response to Cu²⁺ solution.