Highly selective and sensitive detection of trimethylamine using WO3 hollow spheres prepared by ultrasonic spray pyrolysis

Ultrasensitive detection of trimethylamine using Rh-doped SnO2 hollow spheres prepared by ultrasonic spray pyrolysis

“…The present authors have reported that both WO 3 hollow spheres and MoO 3 nanoplates prepared by ultrasonic spray pyrolysis and subsequent heat treatment show high responses to TMA with low cross-responses to other reducing gases, including C 2 H 5 OH [16,17]. The high responses to TMA were attributed to the strong interaction between basic TMA gas and acidic WO 3 and MoO 3 , as well as to effective electron depletion owing to thin shells or plates.…”

“…It has been reported that many oxide semiconductors exhibit a response to TMA [6][7][8][9][10][11][12][13]. In pure oxide semiconductor gas sensors, the response to TMA has been enhanced by increasing the gas accessibility [14][15][16], decreasing the size of the nanostructures [17], and/or using the interaction between basic TMA gas and acidic sensing materials [16,17]. To * Corresponding author.…”

Preparation of iron aluminate (FeAl2O4) nanoparticles from FeAl2O4 hollow particles fabricated by using a spray pyrolysis process

“…When the CA is decomposed at high temperatures above 175 • C, it generates a considerable amount of carbon dioxide (CO 2 ). Therefore, FeAl 2 O 4 hollow particles are formed by the CO 2 gases generated from the thermal decomposition of CA [25,26]. Figure 3 shows XRD patterns of the FeAl 2 O 4 particles synthesized by using a spray pyrolysis process and of FeAl 2 O 4 particles heat treated at high temperatures.…”

Structural and optical properties of tungsten doped TiO2 thin films fabricated by spray pyrolysis technique

“…This small amount of water adsorbed, accelerates the H + ion insertion/removal in to or from the tungsten doped TiO2 thin films [10]. Tungsten doped TiO2 thin films have been reported which are produced through different methods such as chemical vapour deposition [11], electrodeposition [12], sol-gel process [13], sputtering [14] and spray pyrolysis [15]. The chemical spray pyrolysis is a simple method, to deposit thin films and only in few works the formation composition of chemical spray pyrolysis deposited TiO2 films from acetyl-acetone stabilized Ti-alkoxide precursors have been studied [16,17].…”