Polypyrrole nanoparticles fabricated via Triton X-100 micelles template approach and their acetone gas sensing property

• Published in: Applied surface science Vol. 280; pp. 212 - 218
• Main Authors: Li, Fake, Li, Hang, Jiang, Hongmin, Zhang, Kejun, Chang, Kai, Jia, Shuangrong, Jiang, Wenbin, Shang, Ya, Lu, Weiping, Deng, Shaoli, Chen, Ming
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.09.2013; Elsevier
• Subjects: Acetone; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Gas sensor; Micelles; Nanoparticles; Physics; Polypyrrole nanoparticles; Polypyrroles; Scanning electron microscopy; Sensors; Surface acoustic wave transducer; Surface acoustic waves; Triton; Triton X-100; Polypyrrole nanoparticles; Gas sensor; Surface acoustic wave transducer; Triton X-100; Acetone; Nanoparticles; Transducers; Measurement sensor; Acoustic surface waves
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2013.04.132

•PPy nanoparticles have been fabricated with the help of Triton X-100 micelles.•PPy nanoparticles have been first utilized in SAW gas sensor.•The responses of the sensors were linearly associated with the acetone concentrations in the range from 5.5ppm to 80ppm. Nano-scaled polypyrrole (PPy) particles have been successfully synthesized with the help of Triton X-100 micelles via soft template approach. The polypyrrole nanoparticles have been spin-coated on surface acoustic wave (SAW) transducers to demonstrate their sensing capability toward acetone gas exposure. Field Emission Scanning Electron Microscopes (FE-SEM) and Fourier transform infrared (FT-IR) spectroscopy have been utilized to characterize these PPy nanoparticles. The PPy nanoparticles have an average diameter of 95nm. The responses of the sensors are linearly associated with the acetone concentrations in the range from 5.5ppm to 80ppm. In response to 5.5ppm acetone exposure, the response and recovery time are 9s and 8.3s, respectively. SAW sensors coated with PPy nanoparticles were potentially useful to detect acetone.