The reduction of nitroaromatic compaunds on the platinum electrode
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The reduction of 2,4,6-trinitrotoluene (TNT),as an example of nitroaromatic compounds with three nitro groups, was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile. The obtained cyclic voltammograms showed three well-pronounced reduction peaks in the potential range of –0.43 to –0.8 V (vs. Ag/AgCl reference electrode). The potentials of the peaks were dependant on the potential scan rate as well as on the TNT concentration, indicating the irreversibility of the reduction process. A calibration curve as a linear dependence of the first peak current on the TNT concentration was obtained in the range 4.4 – 638.4 μM L–1.The platinum electrode exhibited an electrochemically stabile behavior for the TNT reduction process. Hence, a Pt electrode could be a suitable material for TNT sensing.
Keywords:nitroaromatic compaunds / platinum electrode / cyclic voltammetry
Source:Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts, 2010, 76-76
- Serbian Chemical Society, Belgrade
- Belgrade, Serbia, June 6-10, 2010