热分解法制备SnO_2纳米颗粒  

Preparation of SnO_2 Nanoparticles by Thermal Decomposition Method

作　　者：傅小明[1] 

机构地区：[1]宿迁学院金属材料教研室,江苏宿迁223800

出　　处：《湿法冶金》2014年第1期61-63,共3页Hydrometallurgy of China

基　　金：江苏省高校自然科学研究基金项目(No.11KJB450001);宿迁市科技计划项目(No.Z201201)

摘　　要：以SnC。04在空气中的差热分析结果为依据，利用扫描电子显微镜和激光粒度分析仪分析SnC2O4在空气中的热分解最终产物。结果表明：SnC2O4在空气中的热分解可分为2个阶段：温度低于405℃时，热分解产物为SnO2温度在405～430℃之间时，SnO被空气中的氧气氧化为SnO2。在空气中以6℃／min的速度升温到430℃并保温20min，获得粒径在O～1μm之间、体积分数占93．57％的SnO2纳米颗粒。Based on TG-DSC,the thermal decomposition of SnC2 04 in the air was studied. The thermal t, decomposition products of SNC204 in the air were characterized by the laser particle size analyzer and the scanning electron microscope. The results show that there are two steps in the process of thermal decomposition of SnC2 04 in the air. In the first step,SnO is obtained by the thermal decomposition of SnCzO4 in the air before 405℃. And the volume percentage of the particle size distribution of SnO2 nanopartieles,whieh is prepared at 430 ℃ for 20 rain from room temperature to 430℃ at the rate of 6℃/min in the air,is 93.57% with particle size between 0 and 1 μm.

关 键 词：SnC2O4 热分解 SnO2纳米颗粒 

分 类 号：TQ134.32[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]