Accession Number : ADA583568


Title :   Application of Conductive Carbon Nanotube Fibers and Composites: Gas Sensor


Descriptive Note : Final rept. Jun 2011-Apr 2012


Corporate Author : RICE UNIV HOUSTON TX DEPT OF MECHANICAL ENGINEERING AND MATERIALS SCIENCE


Personal Author(s) : Moloney, Padraig G ; Barrera, Enrique V


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a583568.pdf


Report Date : May 2013


Pagination or Media Count : 36


Abstract : Sensing based on carbon nanotube (CNT) materials has been as area of interest since the material's discovery by Iijima in 1991 (Nature 1991, 354, 56?58), and an active area of research once CNT availability began to increase via the innovations of Smalley and others (Chem Phys Lett 1995, 243, 49?54). The work presented in this report was conducted at Rice University under contract W911NF-11-1-0249. Here, it is shown that the use of high weight percentage CNT medium density polyethylene (MDPE) composites has suitability towards the sensing of nerve agent stimulants such as dimethyl methylphosphonate (DMMP). The results indicate a possible binary composite approach to sensing, using two variants of CNT. As this work progresses, optimization of the CNT towards sensing DMMP through functionalization is suggested, as is improvement to the experimental apparatus to add functionality, such as controlled and active flow, at a fixed temperature relevant to the application.


Descriptors :   *CARBON NANOTUBES , *NERVE AGENTS , *POLYETHYLENE , DETECTION , SENSITIVITY , VAPOR PRESSURE


Subject Categories : Refractory Fibers
      Plastics
      Chemical, Biological and Radiological Warfare
      Miscellaneous Detection and Detectors


Distribution Statement : APPROVED FOR PUBLIC RELEASE