Simple Solid‐State Chemical Synthesis of ZnSnO₃ Nanocubes and Their Application as Gas Sensors

Abstract

New ZnSnO 3 nanocubes were synthesized by a simple PEGinduced solid-state chemical reaction between metal salts and NaOH; this process is cheap and proceeds in a relatively simple manner. The uniform cubic nanostructures were fully characterized. The gas-sensing properties of ZnSnO 3 were investigated in detail. The results indicated that ZnSnO 3 nanocubes possess good gas-sensing properties for ethanol and methanal; thus, these nanocubes show excellent poten-

Fast synthesis of ultra-thin ZnSnO3 nanorods with high ethanol sensing properties

“…4,[6][7][8] When ZnSnO 3 nanocages were used, the resistance of the sensor decreased upon exposure to ethanol for less than 2 s, and the resistance recovered to its initial value after being in air for 30 s. 8 The response and recovery times of ZnSnO 3 nanocubes to 100 ppm ethanol were about 4 and 11 s, respectively. 9 The response and recovery times of ZnSnO 3 nanoskeleton sensors to different concentrations of ethanol at 270 1C were about within 2 and 30 s. 10 It is obvious that the grain size and morphology of ZnSnO 3 materials are the critical factors affecting their properties. Considering the potential applications of 1D nanomaterials in fabricating gas sensors, humidity sensors and nanoelectronic circuits, it is assured that 1D small sized ZnSnO 3 nanomaterials will exhibit excellent sensing properties and be applied to sensor technology at the industry level.…”

Self-assembly of disk-like multiring ZnO–SnO2 colloidal nanoparticles

“…It offers opportunities for further understanding the fundamental mechanism governing the composite inorganic precursors and organic templates into well-ordered nanostructures. These as-prepared ZnO-SnO 2 multiring nanodisks may find applications in gas sensors [13], catalysis [15,16], thin-film field-effect transistors [26] and photoconductors [27].…”

“…In order to gain better performances, a number of ZnO-SnO 2 composites with regular nanostructures have been synthesized by a number of preparation methods, such as high-pressure [10], spray [11], hydrothermal [12], solid-state chemical [13] and chemical vapor deposition [14]. Thus various nanostructures of ZnO-SnO 2 products are produced, e.g.…”

Phase transformation behavior of zinc metastannates obtained by aqueous precipitation at different temperatures

“…The ilmenite (ZnSnO 3 ) phase is reported to be stable only at low temperatures (\600°C) and very few synthesis routes of zinc stannates with this structure has been reported in the literature. Upon solidstate reactions between zinc oxide (ZnO) and tin oxide (SnO 2 ), ZnSnO 3 (s) forms above 700°C, transforming to the more stable ZnSn 2 O 4 phase [19][20][21]. Precipitation of a precursor from an acidic solution of Zn 2?…”