Next Article in Journal
Plasma Nanoengineering and Nanofabrication
Previous Article in Journal
Hydrothermal Fabrication of Silver Nanowires-Silver Nanoparticles-Graphene Nanosheets Composites in Enhancing Electrical Conductive Performance of Electrically Conductive Adhesives
Article Menu

Export Article

Open AccessArticle
Nanomaterials 2016, 6(7), 121; doi:10.3390/nano6070121

A Fast Response Ammonia Sensor Based on Coaxial PPy–PAN Nanofiber Yarn

Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, No. 2999 North Renmin Road, Songjiang District, Shanghai 201620, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Thomas Nann
Received: 8 April 2016 / Revised: 3 June 2016 / Accepted: 15 June 2016 / Published: 23 June 2016
View Full-Text   |   Download PDF [2095 KB, uploaded 23 June 2016]   |  

Abstract

Highly orientated polypyrrole (PPy)–coated polyacrylonitrile (PAN) (PPy–PAN) nanofiber yarn was prepared with an electrospinning technique and in-situ chemical polymerization. The morphology and chemical structure of PPy–PAN nanofiber yarn was characterized by scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and fourier transform infrared spectroscopy (FTIR), which indicated that the PPy as the shell layer was homogeneously and uniformly polymerized on the surface of PAN nanofiber. The effects of different concentration of doping acid on the responses of PPy–PAN nanofiber yarn sensor were investigated. The electrical responses of the gas sensor based on the PPy–PAN nanofiber yarn to ammonia were investigated at room temperature. The nanoyarn sensor composed of uniaxially aligned PPy–PAN nanofibers with a one-dimensional structure exhibited a transient response, and the response time was less than 1 s. The excellent sensing properties mentioned above give rise to good potential application prospects in the field of ammonia sensor. View Full-Text
Keywords: electrospinning; polypyrrole; coaxial polypyrrole (PPy)–polyacrylonitrile (PAN) nanofiber yarn; ammonia sensor electrospinning; polypyrrole; coaxial polypyrrole (PPy)–polyacrylonitrile (PAN) nanofiber yarn; ammonia sensor
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, P.; Wu, S.; Zhang, Y.; Zhang, H.; Qin, X. A Fast Response Ammonia Sensor Based on Coaxial PPy–PAN Nanofiber Yarn. Nanomaterials 2016, 6, 121.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top