Surface Adsorption and Electrochemical Reduction of 2,4,6-Trinitrotoluene on Vanadium Dioxide

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• 作者：Matthew C. Casey ; David E. Cliffel
• 刊名：Analytical Chemistry
• 出版年：2015
• 出版时间：January 6, 2015
• 年：2015
• 卷：87
• 期：1
• 页码：334-337
• 全文大小：227K
• ISSN：1520-6882

文摘

The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated using films of vanadium dioxide. Three distinct reduction peaks were observed in the potential range of 鈭?.50 to 鈭?.90 V (vs an Ag/AgCl reference electrode), corresponding to the electrochemical reduction of the three nitro-groups on the TNT molecule. Adsorptive stripping voltammetry was performed to achieve detection down to 1 渭g/L (4.4 nM), revealing a linear response to TNT concentration. These results are the first describing the use of VO₂ films as an electrochemical sensor and open new avenues for further electrochemical research using this unique material.