Adsorption sensitivity of Ag-decorated carbon nanotubes toward gas-phase compounds

Z. D. Lin, S. J. Young, C. H. Hsiao, S. J. Chang

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

The authors reported the gas-phase CO2 and NH3 adsorption characteristics of Ag-decorated carbon nanotubes (CNTs). High-density CNTs were grown on an oxidized Si substrate by thermal chemical vapor deposition. The average length and diameter of the CNTs were approximately 4.52 μm and 45 nm, respectively. Ag nanoparticles were coated onto the nanotube surfaces to a thickness of approximately 7 nm. The Ag-coated CNTs were sensitive to CO2 and NH3 vapors and could be used to provide a sensor for these gases. The Ag-decorated samples showed stable, reproducible responses and good recovery.

Original languageEnglish
Pages (from-to)1230-1234
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume188
DOIs
Publication statusPublished - 2013 Sep 17

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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