Hydrothermal synthesis and infrared emissivity property of flower-like SnO2 particles

Abstract

The flower-like SnO2 particles are synthesized through a simple hydrothermal process. The microstructure, morphology and the infrared emissivity property of the as-prepared products are characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), and infrared spectroradio meter (ISM) respectively. The results show that the as-prepared SnO2 products are all indexed to tetragonal cassiterite phase of SnO2. The different molarity ratios of the OH− concentration to Sn4+ concentration ([OH−]:[Sn4+]) and the polyacrylamide (PAM) lead to the different morphological structures of SnO2, which indicates that both the [OH−]:[Sn4+] and the PAM play an important role in the morphological evolution respectively. The infrared emissivities of the as-prepared SnO2 products are discussed.

Synthesis, Photoluminescence and Infrared Emissivity of SnO₂ Nanocrystalline Thin Films

“…Considerable attention has been paid to the low IRE materials due to their wide civil applications and military engineering such as heat loss control coating in industry, camouflaging military equipments, as well as protecting vehicles from infrared detection [1]. Extensive works on low IRE materials have been reported so far, such as indium tin oxide films [2], ZnO: Al (AZO) thin films [3], SnO 2 :F/SiC x O y film [4], TiO 2 /SnO 2 :F composite thin film [5], and In 2 O 3 /SnO 2 film [6].…”

“…Extensive works on low IRE materials have been reported so far, such as indium tin oxide films [2], ZnO: Al (AZO) thin films [3], SnO 2 :F/SiC x O y film [4], TiO 2 /SnO 2 :F composite thin film [5], and In 2 O 3 /SnO 2 film [6]. Among them, SnO 2 has aroused great interests because of its low cost and good low IRE performance [1]. However, the aforesaid investigations merely focus on SnO 2 -based composites and scarcely on pure SnO 2 materials for low IRE, which seriously limits its range of application.…”