Synthesis of Nano-Powder Materials Using Spray-Pyrolysis Method

摘要

In this work the laboratory-scale installation for synthesising powder materials with nano-size grains is presented. Nano-sized zinc and tin oxides were obtained using the spray-pyrolysis (SP) method. The zinc oxide was derived from zinc acetate at 300℃, 430℃, 580 ℃, 800℃ and 950℃. The tin oxide was processed by the thermal decomposition of tin tartrate at 500℃. The SP synthesized zinc oxide was used for manufacturing a methane sensor which was characterized as possessing a much wider range of operating and substantially higher sensitivity, 10 times higher, to methane gas compared to a sensor made out of commercially available zinc oxide.