磁控气化回收SnO<sub>2</sub>陶瓷电极的技术研究

磁控气化回收SnO₂陶瓷电极的技术研究

摘要: 本文提出一种高效回收SnO₂陶瓷电极的技术,采用磁控气化回收的方法将SnO₂电极制成复合纳米粉末,实现废电极的回收再利用。借助BET(比表面积)、XRD(X射线衍射)和SEM(扫描电子显微镜)等技术对粉末进行表征,结果表明,所回收制备的SnO₂复合粉末颗粒形貌呈类球形,平均粒径dBET在100 nm左右。XRD结果表明,未经热处理的粉末晶粒结构为四方金红石型SnO₂结构,其中存在极少量SnO,经900℃热处理后,只存在单一四方金红石型SnO₂结构。

Abstract: An efficient method of recycling SnO₂ ceramic electrode was presented in this paper.By gasification technology,SnO₂ ceramic electrode changed into nanopowders immediately.The powders obtained were characterized by means of XRD and SEM.The results show that the SnO₂ compound powders prepared by gasification were quasi-spherical,average particle size dBET was about 100 nm.The XRD data indicates that a little SnO was found besides SnO₂ for the powder untreatment and for the powder treated at 900 ℃,the crystal lattice was single SnO₂ cubic rutile configuration.