Abstract
A wearable CO sensor based on a macroscopic membrane which consists of polyaniline (PANI) coated electrospun nanofibers is reported. The membrane material has a centimeter range macro-film shape with highly porous networks and an ultra-fine nanofiber structure modified with PANI nanocones by an in situ polymerization route, making it a suitable candidate for sensing materials. Sensors based on the macro-PANI nanofiber membrane are constructed, displaying a rapid response (20 s) to CO with a high detection limit (2.5 ppb) at room temperature. Furthermore, by replacing the nanofiber template with natural cotton fibers, a sensing material towards wearable sensors is manufactured and excellent sensing responses are also detected. This work provides a simple process to make macroscale sensing materials with homogeneous, subtle nanoscale architecture and offers significant opportunities for wearable sensors.
| Original language | English |
|---|---|
| Pages (from-to) | 24333-24337 |
| Number of pages | 5 |
| Journal | Journal of Materials Chemistry A |
| Volume | 3 |
| Issue number | 48 |
| DOIs | |
| Publication status | Published - 1 Jan 2015 |
ASJC Scopus subject areas
- General Chemistry
- Renewable Energy, Sustainability and the Environment
- General Materials Science
