摘要
以SnCl4.5H2O和Bi(NO3)3.5H2O为原料,氨水为沉淀剂,采用化学共沉淀法制备了铋掺杂氧化锡(BTO)纳米粉体,考察了反应温度、滴定终点pH、铋掺杂量、煅烧温度和分散剂PEG-600对所得的纳米BTO粉体物相、晶粒度和形貌的影响,对粉末的前驱体进行综合热分析(TG-DTA),用X射线衍射(XRD)、扫描电镜(SEM)对产物的结构和形貌进行表征,得到共沉淀法制备纳米BTO粉体的最佳条件:反应温度60℃,滴定终点pH=3,煅烧温度600℃;该条件下制得BTO粉体的电阻率最小为3.48Ω.cm。
Bismuth-doped tin oxide （BTO） nano-particles were prepared by chemical co-precipitation method using SnCl4·5H2O and Bi（NO3）2 ·5H2O as precursors and NH3 · H2O as precipitant. The effect of processing parameters on the particles was investigated. These parameters include reaction temperature, terminal pH, doping bismuth content, calcine temperature, and PEG - 600 dispersant. The BTO precursors were studied by means of TG - DTA. The product particles were characterized by means of X-ray diffraction（XRD） and scanning electron microscopy （SEM）. The optimized conditions for preparing nanometer BTO powders were proposed ： reaction temperature of 60℃, terminal pH of 3, and the calcine temperature of 600℃, the minimum resistivity of BTo powders is 3.48 Ω·cm under the optimized conditions.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2011年第9期843-847,共5页
Fine Chemicals
基金
中国科学院特种无机涂层重点实验室开放课题资助
深圳市基础研究计划项目(JC201005250063A)~~
关键词
铋掺杂氧化锡
纳米粉体
化学共沉淀法
晶体结构
电阻率
功能材料
bismuth-doped tin oxide
nano-powders
chemical co-precipitation
crystal structure
resistivity
functional materials
