Comparative study of carbon dioxide sensing by Sn-doped TiO2 nanoparticles synthesized by microwave-assisted and solid-state diffusion route

Abstract

Gas sensor based on Sn-doped titanium dioxide (TiO 2 ) nanoparticles has been fabricated and evaluated for carbon dioxide (CO 2 ) sensing. The Sn-doped TiO 2 nanoparticles were synthesized by microwave-assisted and solid-state diffusion route. The structure and morphology of resulting samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Ultraviolet-visible (UV-VIS) spectroscopy was employed to study the optical properties. The weight loss of samples was analyzed through thermo gravimetric analysis (TGA). The Sn-doped TiO 2 nanoparticles synthesized through microwave route exhibited good sensing characteristics.

Synthesis of stable cesium superoxide nanoparticles for gas sensing application by solution-processed spray pyrolysis method

“…The oxidizing gases have tendency to inject electron for sensing surface. This results in reduction of electron density in conduction band of sensing surface (Nemade and Waghuley 2015a). Therefore, resistance of CsO 2 sensing surface is increase in the presence of CO 2 gas.…”

Synergistic effects of Mg doping on TiO2 for improved toxic gas sensing performance at room temperature

“…MO-based chemical sensors offer a promising solution for detecting and measuring VOCs smartly and efficiently, particularly in industrial settings. With their rapid response times and high selectivity, MO gas sensors are suitable for monitoring harmful VOC gases [6,7].…”