The VOCs Sensitivity of Nano-Rod Polyaniline Sensor by Interfacial Polymerization Method
To obtain high sensitivity and rapid response time, we fabricated nano-structured polyaniline (PANi) by interfacial polymerization (IP). An aqueous solution of aniline in chloroform and another solution of ammonium peroxydisulfate in doping acid were employed for IP synthesis of nano-structured PANi. The reaction to proceed at different time (30 min, 1 h and 2 h) terminated with methanol at room temperature. The products were then collected and purified by filtration. The samples for 30 min interfacial reaction had nearly uniform diameters between 30 nm and 50 nm with the length varying from 500 nm to several micrometer. Throughout the experimental trails, nano-structured polyanilines have much better sensing performance than bulk type and were found to have superior sensitivity and selectivity for several volatile organic compounds (VOCs). As the reaction time increased from 30 min to 2 h, the sensitivities of VOCs were decreased. The fastest response and recovery time was appeared when the reaction time was set to 30 min.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: December 1, 2008
More about this publication?
- The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites