Single-atom silver loaded on tungsten oxide with oxygen vacancies for high performance triethylamine gas sensors

Abstract

The traditional sensor materials in detecting gaseous and volatile compounds have still relatively low sensitivity and high price, which limits their large-scale applications. It is critical to improve the changes...

Type II heterojunction promotes photoinduced effects of TiO2 for enhancing photocatalytic performance

“…In order to further confirm the presence of Ti 3+ in irradiated TiO 2 , quasi in situ electron paramagnetic resonance (EPR) testing was conducted for detecting the species of uncoupled electrons. [31][32][33] The EPR spectra of TiO 2 (Fig. 3a) exhibit a shift in the g value from 2.003 to 1.970 due to the formation of Ti 3+ after UV irradiation.…”

Noble Metal Nanoparticles Decorated Metal Oxide Semiconducting Nanowire Arrays Interwoven into 3D Mesoporous Superstructures for Low-Temperature Gas Sensing

“…Surface modification of metal oxides with noble metal nanoparticles (Au, Pt, Pd, etc.) is an effective method to enhance sensitivity and decrease the working temperature of the gas sensor, so as to reduce the power consumption via chemical and electronical sensitization. − Based on the above consideration, design and fabrication of noble nanoparticle-decorated mesoporous materials constructed from metal oxide nanowires is a promising approach to develop high-performance gas sensors which are extremely desired for various miniaturized electric devices.…”

Emerging single atom catalysts in gas sensors

“…Zeng et al synthesized Ag SA loaded WO 3 nanoplates used for TEA detection by hydrothermal and low temperature deposition methods. 132 All samples exhibited a highly ordered nanoplate structure, as shown in Fig. 12(a).…”