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Polyaniline Nanofiber Gas Sensors: Examination of Response Mechanisms
Abstract
Using a new interfacial polymerization method for the synthesis of polyaniline nanofibers, we have developed nanofiber sensors and compared them to conventional polyaniline sensors. Five different response mechanisms are explored: acid doping (HCl), base dedoping (NH 3 ), reduction (with N 2 H 4 ), swelling (with CHCl 3 ), and polymer chain conformational changes (induced by CH 3 OH). In all cases, the polyaniline nanofibers perform better than conventional thin films. Their high surface area, porosity and small diameters enhance diffusion of molecules and dopants into the nanofibers.
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Cited by
Polyaniline Nanofiber/Gold Nanoparticle Nonvolatile Memory
Tseng, R. J., Huang, J., Ouyang, J., Kaner, R. B., & Yang (2005) · Nano Letters · doi:10.1021/nl050587l · Cited by 835
Self-citationNanofiber Formation in the Chemical Polymerization of Aniline: A Mechanistic Study
Huang, J., & Kaner, R. B. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200460616 · Cited by 756
Self-citationElectrical Switching and Bistability in Organic/Polymeric Thin Films and Memory Devices
Yang, Y., Ouyang, J., Ma, L., Tseng, R. J. ‐., & Chu, C. ‐. (2006) · Advanced Functional Materials · doi:10.1002/adfm.200500429 · Cited by 580
Wang, X., Ding, B., Sun, G., Wang, M., & Yu, J. (2013) · Progress in Materials Science · doi:10.1016/j.pmatsci.2013.05.001 · Cited by 533
Two-dimensional polyaniline (C 3 N) from carbonized organic single crystals in solid state
Mahmood, J., Lee, E. K., Jung, M., Shin, D., Choi, H.-J., Seo, J.-M., Jung, S.-M., Kim, D., Li, F., Lah, M. S., et al. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1605318113 · Cited by 478
Metadata
- Authors
- Virji, S., Huang, J., Kaner, R. B., & Weiller, B. H.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-02-19
- Volume
- 4
- Issue
- 3
- Pages
- 491-496
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W1974788729
- Cited by
- 1,108
- References
- 0
- FWCI
- 46.16
- Type
- journal article
- Language
- en
- Open access
- closed
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