Electrochemical diamond sensors for TNT detection in water

A comparative evaluation on the voltammetric behavior of boron-doped diamond (BDD) and glassy carbon (GC) electrodes in different electrolyte media

“…However, there are only few reports in the literature on the application of the BDD as cathodic sensor material. For example, organic compounds such as 1,3-dinitrobenzene [25], nitrofurazone [26], 2-nitrofluoranthene [27] and trinitrotoluene [28] were detected using the BDD electrode by direct reduction.…”

Porphyrin Functionalized Graphene for Sensitive Electrochemical Detection of Ultratrace Explosives

“…To sensitively and electrochemically detect explosives, the electrodes should have good adsorptive characteristics for the nitroaromatic explosives, fast charge transfer capability and large reaction surface area [20,21]. Different nanomaterials, such as MWNTs [20], SWNTs [21], mesoporous silica [22], boron doped diamond [23], and core-shell tin-carbon [24] have been used to functionalize electrodes in electrochemical detection of explosives. Even though these materials have shown enhanced performance in the detections, it still remains a challenge to develop new functional nanomaterials for further improvement.…”

The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile

“…Electrochemical procedures involving potentiometric methods, such as cyclic voltammetry (CV) [10,15] and square-wave voltammetry (SWV) [9][10][11][12][13][14]16], were developed for the detection of TNT in water [12][13][14], soil [15,16], and the gaseous phase [17]. Cyclic voltammograms and square-wave voltammograms were recorded to determine the potentials corresponding to the peaks currents, which were found to be directly proportional to the TNT concentration [10,12,14,18]. The sensitivity and selectivity of the electrochemical sensors are mainly dependent on the sensor material.…”