Electrospun Polyaniline Fibers as Highly Sensitive Room Temperature Chemiresistive Sensors for Ammonia and Nitrogen Dioxide Gases
Name
Zhang_ICP_sensors_rev.pdf
Size
3 MB
Format
Adobe PDF
Checksum (MD5)
dba1976a39555f4da5b2c8c0034b5cce
Author(s)
Zhang, Yuxi
Kim, Jae Jin
Chen, Di
Tuller, Harry L.
Rutledge, Gregory C
Date Issued
April 2014
Journal
Advanced Functional Materials
Publisher
Wiley Blackwell
Citation
Zhang, Yuxi, Jae Jin Kim, Di Chen, Harry L. Tuller, and Gregory C. Rutledge. “Electrospun Polyaniline Fibers as Highly Sensitive Room Temperature Chemiresistive Sensors for Ammonia and Nitrogen Dioxide Gases.” Adv. Funct. Mater. 24, no. 25 (April 1, 2014): 4005–4014.
Version
Author's final manuscript
Abstract
Electrospun polyaniline (PAni) fibers doped with different levels of (+)-camphor-10-sulfonic acid (HCSA) are fabricated and evaluated as chemiresistive gas sensors. The experimental results, based on both sensitivity and response time, show that doped PAni fibers are excellent ammonia sensors and that undoped PAni fibers are excellent nitrogen dioxide sensors. The fibers exhibit changes in measured resistances up to 60-fold for ammonia sensing, and more than five orders of magnitude for nitrogen dioxide sensing, with characteristic response times on the order of one minute in both cases. A time-dependent reaction-diffusion model is used to extract physical parameters from fitting experimental sensor data. The model is then used to illustrate the selection of optimal material design parameters for gas sensing by nanofibers.
MIT Department
Massachusetts Institute of Technology. Materials Processing Center
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1002/adfm.201400185
