Skip to content
Research Article Open access CC BY 4.0

Measuring the Electrochemical Response of a Titanium Dioxide Nanotube Electrode to Various Chemicals as Explosive Components

Samuel C. Johnson, Yong X. Gan, Sinclair B. Calderon, James L. Smith, Jimmie C. Oxley

International Research Journal of Pure and Applied Chemistry · pp. 119–130 · Published 6 Nov 2014

10.9734/IRJPAC/2015/14263

Abstract

Sensing and mitigating explosives are critical for homeland security. This paper investigates the electrochemical responses of TiO2 nanotubes exposed to several chemicals including ammonium nitrate, hydrogen peroxide, methanol, ethanol and ethylene glycol which are used directly as explosives, or as the starting materials for making explosives. Cyclic voltammetry (CV) tests were performed to identify the characteristics of these chemicals at the surface of the TiO2 nanotube electrode. It is found that the trends for system responses to methanol, ethanol and hydrogen peroxide reveal the oxidation of these chemicals in the low voltage range from 0 V to 0.3 V. For ammonium nitrate, the hysteresis of the CV loops covers a much bigger potential range from 0.1 V to 0.8 V. The ethylene glycol shows the mass transfer controlling response which is due to the high viscosity of the solution. 

Titanium oxide nanotube electrochemistry cyclic voltammetry surface reactions explosive detection and mitigation

References (13)

  1. 1 Sensors—An effective approach for the detection of explosives [DOI]
  2. 2 Metal oxide sensor arrays for detection of explosives at sub-parts-per million concentration levels by the differential electronic nose [DOI]
  3. 3 Highly sensitive detection of nitroaromatic explosives using an electrospun nanofibrous sensor based on a novel fluorescent conjugated polymer [DOI]
  4. 4 Explosives detection by fluorescence quenching of conjugated polymers in suspended core optical fibers [DOI]
  5. 5 Fabrication of 1D ZnO nanostructures on MEMS cantilever for VOC sensor application [DOI]
  6. 6 An ultra-sensitive piezoresistive polymer nano-composite microcantilever sensor electronic nose platform for explosive vapor detection [DOI]
  7. 7 Temperature optimization of metal oxide sensor arrays using Mutual Information [DOI]
  8. 8 Trace detection and discrimination of explosives using electrochemical potentiometric gas sensors [DOI]
  9. 9 A colorimetric sensor based on anodized aluminum oxide (AAO) substrate for the detection of nitroaromatics [DOI]
  10. 10 The development of sensors for volatile nitro-containing compounds as models for explosives detection [DOI]
  11. 11 Theoretical and experimental study of sensing triacetone triperoxide (TATP) explosive through nanostructured TiO2 substrate [DOI]
  12. 12 Poly(3-hexylthiophene) and hexafluoro-2-propanol-substituted polysiloxane based OFETs as a sensor for explosive vapor detection [DOI]
  13. 13 Electrode materials and electrode-oxide interfaces in semiconductor gas sensors [DOI]

Cited by 0

No indexed citations yet.

Related research

Article metrics

Real usage data collected on this platform.

76

Page views

0

PDF downloads

31

Outbound clicks

0

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.