The Resource Synthesis of nanostructured conducting polymers and their application as gas sensors, by Zhe-Fei Li

Synthesis of nanostructured conducting polymers and their application as gas sensors, by Zhe-Fei Li

Label
Synthesis of nanostructured conducting polymers and their application as gas sensors
Title
Synthesis of nanostructured conducting polymers and their application as gas sensors
Statement of responsibility
by Zhe-Fei Li
Creator
Author
Subject
Language
eng
Summary
"A single-step, bottom-up technique based on a nanostructured conducting polymer has been used to fabricate sensors. Small amounts of aqueous solutions of aniline, a dopant, and an oxidant were placed on an interdigitated electrode array. Ultraviolet (UV)-irradiation of the solutions enhanced polymerization, yielding a highly porous film of polyaniline nanofibers with mean diameters of around 100 nm and lengths on the order of 1 [mu]m. Solutions that were not irradiated formed bulk-like polyaniline films. Nanofibers and bulk polyaniline sensors were exposed to vapors in an argon carrier gas including: chloroform, a weak proton donor; toluene, a vapor that causes polymer swelling; and triethylamine, which alters the doping level. Because of their higher surface areas, the response times of the fiber sensors were faster than those of conventional bulk polyaniline sensors. Sensors were also fabricated from polyaniline/metal nanocomposites using the same one-step technique. The response of the polyaniline/Ag nanocomposite sensor was about a factor of 2-3 times faster than the polyaniline nanofiber sensor exposed to gaseous triethylamine, probably due to the strong interaction between nitrogen atoms and the metal nanoparticles. The thermal stability of polyaniline and its composites was studied by thermogravimetric analysis. These results suggest methods for the advancement of simple and environmentally-friendly production of nanostructured polyaniline-based sensors and electronic devices"--Abstract, page iv
Related
Member of
Cataloging source
UMR
http://library.link/vocab/creatorDate
1985-
http://library.link/vocab/creatorName
Li, Zhe-Fei
Degree
M.S.
Dissertation year
2008.
Granting institution
Missouri University of Science and Technology
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Gas detectors
  • Conducting polymers
  • Nanostructured materials
  • Polymers
  • Conducting polymers
  • Gas detectors
  • Nanostructured materials
  • Polymers
Label
Synthesis of nanostructured conducting polymers and their application as gas sensors, by Zhe-Fei Li
Instantiates
Publication
Note
  • Vita
  • This dissertation contains two papers for publication
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
905977998
Extent
1 online resource (xi, 50 pages)
Form of item
online
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations (some colored).
Specific material designation
remote
System control number
(OCoLC)905977998
Label
Synthesis of nanostructured conducting polymers and their application as gas sensors, by Zhe-Fei Li
Publication
Note
  • Vita
  • This dissertation contains two papers for publication
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
905977998
Extent
1 online resource (xi, 50 pages)
Form of item
online
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations (some colored).
Specific material designation
remote
System control number
(OCoLC)905977998

Library Locations

    • Curtis Laws Wilson LibraryBorrow it
      400 West 14th Street, Rolla, MO, 65409, US
      37.955220 -91.772210
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