Carbon nanotubes functionalized by nanoparticles of platinum

S. Capula-Colindres, K. Aguir, F. Cervantes-Sodi, L. A. Villa-Vargas, V. Garibay-Febles

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Carbon nanotubes (CNT) based gas sensors have attracted interest due to their excellent properties. Several studies have reported changes in the CNT's electrical properties when functionalized with platinum (Pt) nanoparticles. In this investigation, the vapor phase impregnation decomposition (VPID) method was employed to incorporate Pt nanoparticles on CNT. Both, Pt nanoparticles and CNT were characterized by high resolution transmission electron microscopy (HR-TEM). The sensitivity of sensors based on CNT doped with Pt, was evaluated with ozone molecules. TEM images showed low and heterogeneous distribution on the surface of carbon nanotubes. The gas evaluation of CNT-Pt sensor presents good and quick response to ozone molecules at different concentrations and temperatures. The best response was found to be at 120 °C.

Original languageEnglish
Title of host publicationStructural and Chemical Characterization of Metals, Alloys and Compounds II
PublisherTrans Tech Publications Ltd
Pages45-50
Number of pages6
ISBN (Print)9783038351078
StatePublished - 2014
Externally publishedYes
Event22nd International Materials Research Congress, IMRC 2013 - Cancun, Mexico
Duration: 11 Aug 201315 Aug 2013

Publication series

NameMaterials Science Forum
Volume793
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference22nd International Materials Research Congress, IMRC 2013
Country/TerritoryMexico
CityCancun
Period11/08/1315/08/13

Keywords

  • Carbon nanotubes
  • Defect
  • Dispersion
  • Functionalization
  • Nanoparticles

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