One-step synthesis of 3D flower-like Zn2SnO4 hierarchical nanostructures and their gas sensing properties

Highly sensitive formaldehyde chemical sensor based on in situ precipitation synthesis of ZnSnO3 microspheres

“…The use of composite metal oxides makes possible the gas sensor suitable for particular ambience due to their sensing properties can be controlled by altering their chemical compositions [6]. Chen et al [7] obtained 3D flowerlike Zn 2 SnO 4 by a simple hydrothermal method, and the obtained Zn 2 SnO 4 exhibited superior ethanol sensing performance. An et al [8] reported that the Zn 2 SnO 4 -based sensor exhibited high response, good repeatability, and long-term stability toward ethanol gas than pure ZnO and SnO 2 sensors.…”

Spinel-Type Materials Used for Gas Sensing: A Review

“…By changing the proportion of graphene, it could be found from the response curve of Figure 17 that each material had the best response at room temperature (20 °C). Compared with the higher operating temperature (200 °C or higher) of other undoped zinc stannate materials [ 31 , 73 , 74 , 75 ], the result showed that graphene has a good improvement effect on working temperature. At the same time, it can be seen intuitively in the curve that the best response (18.9) to formaldehyde gas was when the graphene doping content is 0.5 wt%.…”

“…The 3D flower-like structure provides an inward diffusion path for the gas, so it is capable of improving the sensing performance effectively. Chen et al [ 31 ] demonstrated the enormous gap between the Zn 2 SnO 4 nanoflower structure and the solid structure of the sphere. At an operating temperature of 380 °C, the response of the nanoflower structure to 50 ppm ethanol could reach 30.4, which was three times the corresponding structure.…”

Investigations on Structural and Optical Properties of Hydrothermally Synthesized Zn2SnO4 Nanoparticles

“…Ternary oxide zinc stannate (Zn 2 SnO 4 ) has fascinated massive interest of research due to their exceptional electrical and optical properties [1]. Zn 2 SnO 4 has larger band gap of 3.6 eV and higher electron mobility (10-15 cm 2 V −1 S −1 ) [1][2][3][4][5]. Ternary oxide materials are of superior property compared to binary oxides owing to their freedom to tune the properties such as work function, electrical conductivity, and band gap energy by varying its composition [1,3].…”

“…Owing to its feasible property, Zn 2 SnO 4 has prospective applications such as photocatalysis, transparent conducting oxides, sensors, and lithium ion batteries and in case of dye sensitized solar cells (DSSC), Zn 2 SnO 4 provides better control of carrier transport and collection which recovers the long term chemical stability of DSSC [2,3,[10][11][12]. There are many techniques to synthesize Zn 2 SnO 4 thermal evaporation, pulse laser deposition, spray pyrolysis, sputtering technique, and so forth [2], which requires extremely sophisticated laboratory and power consumption; thus in our case we utilized hydrothermal technique. The materialization of Zn 2 SnO 4 nanoparticles via hydrothermal process requires main processing variables such as reaction temperature and time, mineralizers enabling the formation reaction, and the pH of the slurry reaction in the autoclave.…”