Eur. Phys. J. Appl. Phys. 93, 30401 (2021)
https://doi.org/10.1051/epjap/2021200361

Regular Article

Fast response acetone-sensing properties of SnO₂ nanoparticles prepared by the sol-gel method

Department of Physics, Tonghua Normal University, Tonghua 134002, P.R. China

^* e-mail: 54995147@qq.com

Received: 25 November 2020
Received in final form: 21 January 2021
Accepted: 1 February 2021
Published online: 9 March 2021

Abstract

SnO₂ nanoparticle architectures were successfully synthesized using a sol-gel method and developed for acetone gas detection. The morphology and structure of the particles were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The SnO₂ nanoparticle architectures were configured as high-performance sensors to detect acetone and showed a very fast response time (<1 s), a short recovery time (10 s), good repeatability and high selectivity at a relatively low working temperature. Thus, SnO₂ nanoparticles should be promising candidates for designing and fabricating acetone gas sensors with good gas sensing performance. The possible gas sensing mechanism is also presented.